INTRODUCTION What Is AI? Download from this link https://drive.google.com/drive/folders/1SYygpoG-t21_4K6h9V_EllIf9nrWOv1_?usp=sharing Important link https://github.com/aimacode/aima-python https://aimacode.github.io/aima-exercises/ Task https://www.programiz.com/python-programming/keyword-list Optional https://i.am.ai/roadmap/#note
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
محمد مصطفي صبري محمود
المستوي الرابع
Resident Virus
Resident viruses live in your RAM memory. It can interfere with normal system operation which can lead to the corruption of files and programs. The most popular examples of resident viruses are CMJ, Meve, MrKlunky, and Randex.
Multipartite Virus
This type of virus can easily spread in your computer system. It is very infectious, performing unauthorized actions in your operating system, in folders, and other programs on the computer. They have the ability to infect both the executable files and the boots sector.
Direct Action Virus
Direct action viruses attack certain types of files, typically .exe and .com files. The main purpose of this virus is to replicate and infect files in folders. On the lighter note, they do not typically delete files or affect PC performance and speed. It can be easily removed by antivirus programs.
Browser Hijacker
This type of virus infects your web browser in which it will bring you to different websites. Typically, if you key in a domain name in the internet address bar, the browser hijacker will open multiple fake websites that may harm your computer. On the other hand, most trusted browsers have built-in features to block them ahead.
Overwrite Virus
From the name itself, this virus overwrites the content of a file, losing the original content. It infects folders, files, and even programs. To delete this virus, you also need to get rid of your file. Thus, it is important to back up your data.
Web Scripting Virus
This virus lives in certain links, ads, image placement, videos, and layout of a website. These may carry malicious codes in which when you click, the viruses will be automatically downloaded or will direct you to malicious websites.
Boot Sector Virus
Boot sector viruses affect floppy disks. They came to existence when floppy disks are important in booting a computer. Although they are not very common today, it is still causing other computer units, especially the outdated ones. Some examples include Polyboot.B and AntiEXE.
Macro Virus
Macro viruses target applications and software that contain macros. These viruses can carry out series of operations affecting the performance of the program or software. Some examples of macro viruses are O97M/Y2K, Bablas, Melissa.A, and Relax.
Directory Virus
Directory viruses change file paths. When you run programs and software that are infected with directory viruses, the virus program also runs in the background. Further, it may be difficult for you to locate the original app or software once infected with directory viruses.
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
محمد نصحى محمود محمد
المستوى الرابع اتصالات
1-MyDoom
2-ILOVEYOU
3-Melissa Virus
4-WannaCry Ransomware Virus
5-Code Red Worm
6-Nimda
7-Sql slammer
9-Mebroot
ومن وجهة نظرى ان احطرهم واكثرهم استغلال لحد هذة الساعة هما
WannaCry Ransomware Virus
Sql slammer
وبالاخص فى الوطن العربى
1. CryptoLocker
2.ILOVEYOU
It’s been 15 years since ILOVEYOU was let loose on the internet. By today’s standards it’s a pretty tame virus, but in 2000 it was the most damaging malware event of all time
3. MyDoom
MyDoom, like ILOVEYOU, is a record holder and was the fastest spreading email-based worm ever
4.Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006, people would open the email and click on a link to the news story and that’s when the problems started
5.Slammer
Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
أحمد على الباز محمد
المستوي الرابع اتصالات
1-MyDoom
The most devastating computer virus to date is MyDoom, which caused over $38 billion in damages. In addition to being the most expensive virus to date, its effects were far-reaching and fast-moving. When a user was infected with the virus it creates network openings which allowed others to have access to your computer. In addition, the virus also had the ability to open random programs.
2_SoBig
Another harmful and expensive computer virus is SoBig. In 2003, the SoBig virus caused over $37.1 billion in devastation. This fast-spreading virus circulated through email as viral spam, and if exposed, the virus had the capability to copy files, emailing itself to others and causing serious damage to computer software and hardware.
3-ILOVEYOU
ILOVEYOU is another particularly malicious virus that spread quickly through email, websites and file sharing. The ILOVEYOU virus, or the “Love Letter” worm, affected more than 500,000 systems in 2000 and produced over $15 billion in damages, including $5.5 billion in the first week alone. The virus replicated itself and exposed itself to everyone in the owner’s contact list. This virus was a pioneer for other viruses, as it was one of the first to attach to an email.
4-Conficker
The Conficker virus caused over $9.1 billion in damages in 2007 and infected millions of computers around the world. The virus scanned computers for weaknesses and vulnerabilities, logged keystrokes and downloaded code from hacker-selected websites and more.
5-Code Red
One of the most well-known viruses to date is the Code Red virus. It caused over $2 billion in damages in 2001, and had the ability to break into computer networks and exploit weaknesses in Microsoft software. Once the virus infected the machine, it actively looked for other machines on the networks to attack.
6-Melissa
The Melissa virus was a particularly slimy virus that sent out infected Microsoft Word documents through Microsoft Outlook, delivering viral messages to everyone listed in the Outlook address book. The messages appeared to be coming from the Outlook owner, but was really the Melissa virus at work. A tell-tale indicator that Melissa had infiltrated your Outlook is if your contacts had received an email from you with the message: “Here is that document you asked for … don’t show anyone else.” There would be a word document attached, complete with the Melissa virus. In 1999, Melissa caused $1.2 billion in damages.
7-SQL Slammer
SQL Slammer is a virus that greatly affected banks and caused Internet speed to lag significantly across the globe. SQL Slammer caused an estimated $750 million in damages in 2003, and affected 200,000 computers worldwide.
8-Nimda
Nimda is one of the Internet’s most widespread viruses and among the costliest as well. The virus caused $635 million worth of damages in 2001 and caused Internet browsing time to slow significantly. Additionally, it could affect a user’s email account and send out a read-me file to all contacts listed in the email address book. The virus caused traffic and Internet speeds to slowdown.
9-Sasser
Sasser created quite a bit of trouble in 2004 when it piled up $500 million in damages, devastated the British Coast Guard mapping system and caused numerous canceled flights. The creator of Sasser was identified as a teenager from Germany, and was quickly apprehended when one of his “friends” turned him in for a $250,000 bounty posted by Microsoft
10-The Bottom Line
While the Internet can be a wonderful resource for doing everything from communicating with friends and colleagues to checking your bank statement, it is not necessarily the safest of places to perform such transactions when viruses are lurking in the midst. Protect yourself and your computer with quality anti-virus software, and continue to browse safely on the Internet.
1-The Morris worm
In 1998 Robert Morris, a university student, unleashed a worm which affected 10 per cent of all the computers connected to the internet (at the time the net was estimated to consist of 60,000 computers), slowing them down to a halt.
2-The Anna Kournikova worm
The Anna Kournikova worm posed as a picture of the tennis player, but was in fact a virus written by Jan de Wit, an obsessed admirer from the Netherlands. He ended up receiving a community service sentence.
3-ILOVEYOU
The Love Bug flooded internet users with ILOVEYOU messages in May 2000, forwarding itself to everybody in the user’s address book. It was designed to steal internet access passwords for its Filipino creator.
4-The Blaster Worm
The Blaster worm launched a denial of service attack against Microsoft’s website in 2003, and infected millions of computers around the world by exploiting a security hole in Microsoft’s software. Its author has never been found.
5-The Concept virus
The Concept virus, accidentally shipped on a CD-ROM supplied by Microsoft in 1995, was the first virus to infect Microsoft Word documents. Within days it became the most widespread virus the world had ever seen, taking advantage of the fact that computer users shared documents via email.
6-CIH
The Chernobyl virus (also known as CIH) triggers on April 26 each year, the anniversary of the Chernobyl nuclear disaster. It overwrites a chip inside PCs effectively paralysing the entire computer. Its author, Chen Ing Hau, was caught by the authorities in Taiwan.
1. Melissa
A macro virus named after a Miami stripper, was so effective in 1999 that the tidal wave of email traffic it generated caused the likes of Intel and Microsoft to shut down their email servers. The virus contained a Word document labeled List.DOC as an attachment to an email allowing access to porn sites.
The email was first distributed to a Usenet group but quickly got out of hand. When a user opened the email a message, the infected Word attachment was sent to the first 50 names in the user’s address book. The scheme was particularly successful because the email bore the name of someone the recipient knew and referenced a document they had allegedly requested. I recall spending long hours cleaning up after this one.
2. The Anna Kournikova Virus
This computer virus was attributed to a Dutch programmer Jan de Wit on February 11, 2001. The virus was designed to trick a recipient into opening a message by suggesting that it contained a picture of the lovely Anna Kournikova, instead the recipient triggered a malicious program.
This was another virus that exploited a user’s Microsoft Outlook mail contacts. The email subject read: “Hi: Check This!”, with what appeared to be a picture file labeled “AnnaKournikova.jpg.vbs”. Clearly, the attachment was not a JPG, but it was a good bit of social engineering and was an effective transmission mechanism.
3. MyDoom
MyDoom began appearing in inboxes in 2004 and soon became the fastest spreading worm ever to hit the web, exceeding previous records set by the Sobig worm and ILOVEYOU. A side note, though I knew people affected by Sobig and ILOVEYOU, I did not see either of these in the wild.
The reason that MyDoom was effective was that the recipient would receive an email warning of delivery failure – a message we have all seen at one time or another. The message prompted the recipient to investigate thus triggering the worm.
Once the attached file was executed, the worm would send itself to email addresses found in the local address book and also put a copy in a shared folder (KaZaA). Like Klez, MyDoom could spoof email but also had the ability to generate traffic through web searches, which placed a significant load on search engines like Yahoo and Google.
MyDoom was also significant for the second payload that it carried, which was a DDoS attack on the SCO group; albeit not the coordinated sort of attack we would now expect to see with modern bot-nets. The origination of the virus is attributed or suggested to be someone in Russia, but no one was ever able to confirm.
Lastly, MyDoom contained the text “andy; I’m just doing my job, nothing personal, sorry,” which led many to believe that the virus was constructed for a fee for a spammer, though this also was not confirmed. Shot in the dark: if you are the Andy in referenced in MyDoom and are reading this, please comment!
4. Sasser & Netsky
Easily one of the most famous and prolific variants of computer worms, famous for effectiveness and the fact that it was authored by an 18 year-old German, Sven Jaschan, who confessed to having written these and other worms.
Netsky sticks in my mind because it was the first time that a virus insulted other virus authors. Here the authors of both the Bagle and Mydoom worm families were dissed and, in some cases, Netsky included code that removed versions of the competing viruses.
The other reason this one sticks with me was that the author was turned in to authorities by a friend who wanted to collect the $250,000 bounty that Microsoft put up for information about the outbreak. Though obviously, not a really good friend!
5. 2007 Storm Worm
Though I did consider the 1988 Morris worm, regarded as the first worm, I had to go with the 2007 Storm worm as the 5th to include. Known by many names the Storm Worm is a backdoor Trojan that affects Microsoft based computers.
Here, again, we see distribution of payload through email, with the subject reading, “230 dead as storm batters Europe”. The Storm Worm was a Trojan horse that would join the infected computer to a bot-net – a network of remotely-controllable computers. Though it was thought to be a bot-net of millions of computers, the exact numbers were never known.
1. The Morris worm
In 1998 Robert Morris, a university student, unleashed a worm which affected 10 per cent of all the computers connected to the internet (at the time the net was estimated to consist of 60,000 computers), slowing them down to a halt. Morris is now an associate professor at MIT.
2. The Concept virus
The Concept virus, accidentally shipped on a CD-ROM supplied by Microsoft in 1995, was the first virus to infect Microsoft Word documents. Within days it became the most widespread virus the world had ever seen, taking advantage of the fact that computer users shared documents via email.
3. CIH
The Chernobyl virus (also known as CIH) triggers on April 26 each year, the anniversary of the Chernobyl nuclear disaster. It overwrites a chip inside PCs effectively paralysing the entire computer. Its author, Chen Ing Hau, was caught by the authorities in Taiwan.
4. The Anna Kournikova worm
The Anna Kournikova worm posed as a picture of the tennis player, but was in fact a virus written by Jan de Wit, an obsessed admirer from the Netherlands. He ended up receiving a community service sentence.
5. ILOVEYOU
The Love Bug flooded internet users with ILOVEYOU messages in May 2000, forwarding itself to everybody in the user’s address book. It was designed to steal internet access passwords for its Filipino creator.
6. The Melissa virus
The Melissa virus, written by David L Smith in homage to a Florida stripper, was the first successful email-aware virus and inserted a quote from The Simpsons in to Word documents. Smith was later sentenced to jail for causing over $80 million worth of damage.
7. The Blaster Worm
The Blaster worm launched a denial of service attack against Microsoft’s website in 2003, and infected millions of computers around the world by exploiting a security hole in Microsoft’s software. Its author has never been found.
8. Netsky and Sasser
Sven Jaschan, a German teenager, was found guilty of writing the Netsky and Sasser worms. Jaschan was found to be responsible for 70 per cent of all the malware seen spreading over the internet at the time, but escaped prison and was eventually hired by a security company as an “ethical hacker”.
9. OSX/RSPlug Trojan
In November 2007, the first example of financially-motivated malware for Apple Macs was discovered in the wild. The launch of the OSX/RSPlug Trojan increased fears that Apple’s platform may be targeted more by hackers in the future.
10. Storm worm
The Storm worm, originally posing as breaking news of bad weather hitting Europe, infected computers around the world in 2007. Millions of infected PCs were taken over by hackers and used to spread spam and steal identities.
1- ILOVEYOU
2. Code Red
3. Melissa
4. Sasser
5. Zeus
6. Conficker
7. Stuxnet
8. Mydoom
9. CryptoLocker
10. Flashback
11. WannaCry
12-The Morris worm
1. CryptoLocker
When it comes to malware, ransomware is the new kid on the block. While most people can rattle off names like ‘Trojan’, ‘viruses’, and ‘spyware’, they’re often not too familiar with ransomware.
Ransomware is a kind of malware that takes your files hostage. You know in heist movies when the bad guy grabs someone and threatens them in return for money? Ransomware works much like that, except your computer is taken hostage by a faceless bad guy.
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money, usually somewhere from a few hundred pounds up to a couple of grand.
With some of the hacking attempts, System Restore or recovery software worked. Although with many of the infected computers, if the victims didn’t pay up they’d lose all their files. Now is a good time to remind you to always back your files up!
In June 2014, Operation Tovar took down Evgeniy Bogachev, the leader of the gang of hackers behind CryptoLocker. In February, the FBI offered a cool $3 million reward for Bogachev.
Cost of the malware: With 500,000 victims, CryptoLocker made upwards of $30 million in 100 days.
2. ILOVEYOU
While ILOVEYOU sounds like a cheerful bon mot you might find printed on the inside of a Valentine’s Day card, it’s actually far, far more sinister than that. ILOVEYOU is one of the most well-known and destructive viruses of all time.
It’s been 15 years since ILOVEYOU was let loose on the internet. By today’s standards it’s a pretty tame virus, but in 2000 it was the most damaging malware event of all time. Likely, ILOVEYOU inspired many hackers to wield their keyboard as a weapon.Well, in 2000 malware was a bit of a myth. In fact, it was such a myth that malware could get away with being completely unsubtle. If you got an email today like the one that was sent around in 2000, you’d never open it. (We hope!) The virus came in an email with a subject line that said “I love you”.
Being curious types, people clicked into the email with aplomb—regardless of the fact the email wasn’t from anyone they knew.
The malware was a worm that was downloaded by clicking on an attachment called ‘LOVE-LETTER-FOR-YOU.TXT.vbs’.
ILOVEYOU overwrote system files and personal files and spread itself over and over and over again. ILOVEYOU hit headlines around the world and still people clicked on the text—maybe to test if it really was as bad as it was supposed to be. Poking the bear with a stick, to use a metaphor.
ILOVEYOU was so effective it actually held the Guinness World Record as the most ‘virulent’ virus of all time. A viral virus, by all accounts. Two young Filipino programmers, Reonel Ramones and Onel de Guzman, were named as the perps but because there were no laws against writing malware, their case was dropped and they went free.
Cost of the malware: $15 billion.
3. MyDoom
MyDoom is considered to be the most damaging virus ever released—and with a name like MyDoom would you expect anything less?
MyDoom, like ILOVEYOU, is a record-holder and was the fastest-spreading email-based worm ever. MyDoom was an odd one, as it hit tech companies like SCO, Microsoft, and Google with a Distributed Denial of Service attack.
25% of infected hosts of the .A version of the virus allegedly hit the SCO website with a boatload of traffic in an attempt to crash its servers.
As well as targeting tech companies, MyDoom spammed junk mail through infected computers, with the text that said “andy; I’m just doing my job, nothing personal, sorry”. Who was Andy? Who knows.
In 2004, roughly somewhere between 16-25% of all emails had been infected by MyDoom.
Cost of the malware: $38 billion.
4. Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
Tip: never open a link in an email unless you know exactly what it is.
By July 2007, Storm Worm was picked up in more than 200 million emails.
Cost of the malware: An exact cost is yet to be calculated.
5. Sasser & Netsky
17-year-old Sven Jaschan created Sasser & Netsky, two worms, in the early noughties. Sasser & Netsky are actually two separate worms, but they’re often grouped together because the similarities in the code led experts to believe they were created by the same person.
Sasser spread through infected computers by scanning random IP addresses and instructing them to download the virus. Netsky was the more familiar email-based worm. Netsky was actually the more viral virus, and caused a huge amount of problems in 2004.
A German student, Jaschan was arrested when multiple tip-offs were reported to the police. Speculation suggested Jaschan had actually written the viruses to create business for his mother and stepfather’s PC business. Because he was under 18 when he wrote the virus, Jaschan spent his prison sentence on probation.
Even more interesting is Jaschan’s motivation. MyDoom was spreading rapidly at the time and Jaschan, a newbie coder, wanted to see what would happen if his bug could spread faster than MyDoom. Things quickly escalated from there.
6. Anna Kournikova
What’s a tennis player got to do with a list of interesting viruses? Quite a lot, as it so happens.
We’re going to get this out of the way first: the Anna Kournikova virus is pretty tame compared to many on the list.
So in the early to mid-noughties, Anna Kournikova was one of the most searched terms on the internet. People were just very into tennis.
Jan De Wit, a 20-year-old Dutch man, wrote the virus as ‘a joke’. The subject was “Here you have, ;0)” with an attached file called AnnaKournikova.jpg.vbs. Anna was pretty harmless and didn’t do much actual damage, though De Wit turned himself into police anyway.
The mayor of the town came forward and said the city should be proud to have produced such a talented young man and offered him a job as a techie once he was finished his education.
Cost of the malware: $166,000.
7. Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
The Bank of America’s ATM service crashed, 911 services went down, and flights had to be cancelled because of online errors. Slammer, quite aptly, caused a huge panic as it had effectively managed to crash the internet in 15 quick minutes.
Cost of the malware: Around $1 billion.
8. Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Yes, you read that right. Who needs to target email when they can gun for nukes?
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
Stuxnet is the first real venture into cyberwar and it definitely asks the question as to what will come next. The idea of digital weaponry is pretty scary, isn’t it?
Cost of the malware: Unknown.
So there you have it: while viruses and malware might seem like a myth drummed up by tech companies, they are a very real threat that have caused billions in damage.
This entry was posted on Mon Feb 22, 2016 filed under digital trends , online security and online threats
Mohamed Ayman mosa selim
Level four
1. ILOVEYOU
2. Code Red
3. Melissa
4. Sasser
5. My Doom
6. Stuxnet
7. Crypto Locker
8. Flashback
9. Conficker
10. Zeus
11. The Morris Worm
12. WannaCry
13. Storm Worm
The most virus attacks in the world:
1. ILOVEYOU
The ILOVEYOU virus is considered one of the most virulent computer virus ever created and it’s not hard to see why. The virus managed to wreck havoc on computer systems all over the world, causing damages totaling in at an estimate of $10 billion. 10% of the world’s Internet-connected computers were believed to have been infected. It was so bad that governments and large corporations took their mailing system offline to prevent infection.
2. Code Red
Code Red first surfaced on 2001 and was discovered by two eEye Digital Security employees.
3. Sasser
A Windows worm first discovered in 2004, it was created by computer science student Sven Jaschan, who also created the Netsky worm.
4. Zeus
Zeus is a Trojan horse made to infect Windows computers so that it will perform various criminal tasks.
5. Conficker
Also known as Downup or Downadup, Conficker is a worm of unknown authorship for Windows that made its first appearance in 2008.
6. Stuxnet
Believed to have been created by the Israeli Defence Force together with the American Government, Stuxnet is an example of a virus created for the purpose of cyberwarfare, as it was intended to disrupt the nuclear efforts of the Iranians.
7. Mydoom
Surfacing in 2004, Mydoom was a worm for Windows that became one of the fastest spreading email worm since ILOVEYOU.
8. CryptoLocker
CryptoLocker is a form of Trojan horse ransomware targeted at computers running Windows.
9. Flashback
Though not as damaging as the rest of the malware on this list, this is one of the few Mac malware to have gain notoriety as it showed that Macs are not immune.
1. The Morris worm
In 1998 Robert Morris, a university student, unleashed a worm which affected 10 per cent of all the computers connected to the internet (at the time the net was estimated to consist of 60,000 computers), slowing them down to a halt. Morris is now an associate professor at MIT.
2. The Concept virus
The Concept virus, accidentally shipped on a CD-ROM supplied by Microsoft in 1995, was the first virus to infect Microsoft Word documents. Within days it became the most widespread virus the world had ever seen, taking advantage of the fact that computer users shared documents via email.
3. CIH
The Chernobyl virus (also known as CIH) triggers on April 26 each year, the anniversary of the Chernobyl nuclear disaster. It overwrites a chip inside PCs effectively paralysing the entire computer. Its author, Chen Ing Hau, was caught by the authorities in Taiwan.
4. The Anna Kournikova worm
The Anna Kournikova worm posed as a picture of the tennis player, but was in fact a virus written by Jan de Wit, an obsessed admirer from the Netherlands. He ended up receiving a community service sentence.
5. ILOVEYOU
The Love Bug flooded internet users with ILOVEYOU messages in May 2000, forwarding itself to everybody in the user’s address book. It was designed to steal internet access passwords for its Filipino creator.
6. The Melissa virus
The Melissa virus, written by David L Smith in homage to a Florida stripper, was the first successful email-aware virus and inserted a quote from The Simpsons in to Word documents. Smith was later sentenced to jail for causing over $80 million worth of damage.
7. The Blaster Worm
The Blaster worm launched a denial of service attack against Microsoft’s website in 2003, and infected millions of computers around the world by exploiting a security hole in Microsoft’s software. Its author has never been found.
8. Netsky and Sasser
Sven Jaschan, a German teenager, was found guilty of writing the Netsky and Sasser worms. Jaschan was found to be responsible for 70 per cent of all the malware seen spreading over the internet at the time, but escaped prison and was eventually hired by a security company as an “ethical hacker”.
9. OSX/RSPlug Trojan
In November 2007, the first example of financially-motivated malware for Apple Macs was discovered in the wild. The launch of the OSX/RSPlug Trojan increased fears that Apple’s platform may be targeted more by hackers in the future.
10. Storm worm
The Storm worm, originally posing as breaking news of bad weather hitting Europe, infected computers around the world in 2007. Millions of infected PCs were taken over by hackers and used to spread spam and steal identities.
1_ CryptoLocker
When it comes to malware, ransomware is the new kid on the block. While most people can rattle off names like ‘Trojan’, ‘viruses’, and ‘spyware’, they’re often not too familiar with ransomware.
2_ILOVEYOU
While ILOVEYOU sounds like a cheerful bon mot you might find printed on the inside of a Valentine’s Day card, it’s actually far, far more sinister than that. ILOVEYOU is one of the most well-known and destructive viruses of all time.
3_MyDoom
MyDoom is considered to be the most damaging virus ever released—and with a name like MyDoom would you expect anything less?
MyDoom, like ILOVEYOU, is a record-holder and was the fastest-spreading email-based worm ever.
4_
Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
5_
Anna Kournikova
What’s a tennis player got to do with a list of interesting viruses? Quite a lot, as it so happens.
We’re going to get this out of the way first: the Anna Kournikova virus is pretty tame compared to many on the list.
6_Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
7_. Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
8_Sasser & Netsky
17-year-old Sven Jaschan created Sasser & Netsky, two worms, in the early noughties. Sasser & Netsky are actually two separate worms, but they’re often grouped together because the similarities in the code led experts to believe they were created by the same person.
Ghada salah mohamed
1) ILOVE YOU
The ILOVEYOU virus is considered one of the most virulent computer virus ever created. The virus managed to wreck havoc on computer systems all over the world, causing damages totaling in at an estimate of $10 billion. 10% of the world’s Internet-connected computers were believed to have been infected. It was so bad that governments and large corporations took their mailing system offline to prevent infection.The virus was created by two Filipino programers, Reonel Ramones and Onel de Guzman. What it did was use social engineering to get people to click on the attachment; in this case, a love confession. The attachment was actually a script that poses as a TXT file, due to Windows at the time hiding the actual extension of the file. Once clicked, it will send itself to everyone in the user’s mailing list and proceed to overwrite files with itself, making the computer unbootable.
2)Code Red
Code Red first surfaced on 2001 and was discovered by two eEye Digital Security employees. It was named Code Red because the the pair were drinking Code Red Mountain Dew at the time of discovery. The worm targeted computers with Microsoft IIS web server installed, exploiting a buffer overflow problem in the system. It leaves very little trace on the hard disk as it is able to run entirely on memory, with a size of 3,569 bytes. Once infected, it will proceed to make a hundred copies of itself but due to a bug in the programming, it will duplicate even more and ends up eating a lot of the systems resources. The most memorable symptom is the message it leaves behind on affected web pages, “Hacked By Chinese!”, which has become a meme itself. A patch was later released and it was estimate that it caused $2 billion in lost productivity. A total of 1-2 million servers were affected.
3) Sasser
A Windows worm first discovered in 2004, it was created by computer science student Sven Jaschan, who also created the Netsky worm. While the payload itself may be seen as simply annoying (it slows down and crashes the computer, while making it hard to reset without cutting the power), the effects were incredibly disruptive, with millions of computers being infected, and important, critical infrastructure affected. The worm took advantage of a buffer overflow vulnerability in Local Security Authority Subsystem Service (LSASS), which controls the security policy of local accounts causing crashes to the computer. It will also use the system resources to propagate itself to other machines through the Internet and infect others automatically. The effects of the virus were widespread as while the exploit was already patched, many computers haven’t updated. This led to more than a million infections, taking out critical infrastructures, such as airlines, news agencies, public transportation, hospitals, public transport, etc. Overall, the damage was estimated to have cost $18 billion.
4)Zeus
Zeus is a Trojan horse made to infect Windows computers so that it will perform various criminal tasks. The most common of these tasks are usually man-in-the-browser keylogging and form grabbing. The majority of computers were infected either through drive-by downloads or phishing scams. First identified in 2009, it managed to compromise thousands of FTP accounts and computers from large multinational corporations and banks such as Amazon, Oracle, Bank of America, Cisco, etc. Controllers of the Zeus botnet used it to steal the login credentials of social network, email and banking accounts.n the US alone, it was estimated that more than 1 million computers were infected, with 25% in the US. The entire operation was sophisticated, involving people from around the world to act as money mules to smuggle and transfer cash to the ringleaders in Eastern Europe. About $70 million were stolen and in possession of the ring.
5)Conficker
lso known as Downup or Downadup, Conficker is a worm of unknown authorship for Windows that made its first appearance in 2008. The name comes form the English word, configure and a German pejorative.It infects computers using flaws in the OS to create a botnet. The malware was able to infect more than 9 millions computers all around the world, affecting governments, businesses and individuals. It was one of the largest known worm infections to ever surface causing an estimate damage of $9 billion.The worm works by exploiting a network service vulnerability that was present and unpatched in Windows. Once infected, the worm will then reset account lockout policies, block access to Windows update and antivirus sites, turn off certain services and lock out user accounts among many. Then, it proceeds to install software that will turn the computer into a botnet slave and scareware to scam money off the user
1-MyDoom
2-ILOVEYOU
3-Melissa Virus
4-WannaCry Ransomware Virus
5-Code Red Worm
6-Nimda
7-Sql slammer
9-Mebroot
10. Sasser
11. Stuxnet
12. Crypto Locker
13. Flashback
14. Conficker
15. Zeus
16. The Morris Worm
17. Storm Worm
1-MyDoom
2-ILOVEYOU
3-Melissa Virus
4-WannaCry Ransomware Virus
5-Code Red Worm
6-Nimda
7-Sql slammer
9-Mebroot
1. CryptoLocker
When it comes to malware, ransomware is the new kid on the block. While most people can rattle off names like ‘Trojan’, ‘viruses’, and ‘spyware’, they’re often not too familiar with ransomware.
2. ILOVEYOU
While ILOVEYOU sounds like a cheerful bon mot you might find printed on the inside of a Valentine’s Day card, it’s actually far, far more sinister than that. ILOVEYOU is one of the most well-known and destructive viruses of all time.
3. MyDoom
MyDoom is considered to be the most damaging virus ever released—and with a name like MyDoom would you expect anything less?
4. Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
5. Sasser & Netsky
17-year-old Sven Jaschan created Sasser & Netsky, two worms, in the early noughties. Sasser & Netsky are actually two separate worms, but they’re often grouped together because the similarities in the code led experts to believe they were created by the same person.
6. Anna Kournikova
What’s a tennis player got to do with a list of interesting viruses? Quite a lot, as it so happens.
We’re going to get this out of the way first: the Anna Kournikova virus is pretty tame compared to many on the list.
So in the early to mid-noughties, Anna Kournikova was one of the most searched terms on the internet. People were just very into tennis.
Jan De Wit, a 20-year-old Dutch man, wrote the virus as ‘a joke’. The subject was “Here you have, ;0)” with an attached file called AnnaKournikova.jpg.vbs. Anna was pretty harmless and didn’t do much actual damage, though De Wit turned himself into police anyway.
The mayor of the town came forward and said the city should be proud to have produced such a talented young man and offered him a job as a techie once he was finished his education.
Cost of the malware: $166,000.
7. Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
1. ILOVEYOU
The ILOVEYOU virus is considered one of the most virulent computer virus ever created.
2. Code Red
Code Red first surfaced on 2001 and was discovered by two eEye Digital Security employees. It was named Code Red because the the pair were drinking Code Red Mountain Dewat the time of discovery.
3. Melissa
Named after an exotic dancer from Florida, it was created by David L. Smith in 1999. It started as an infected Word document that was posted up on the alt.
4. Sasser
A Windows worm first discovered in 2004, it was created by computer science student Sven Jaschan, who also created the Netsky worm.
5. Zeus
Zeus is a Trojan horse made to infect Windows computers so that it will perform various criminal tasks.
6. Conficker
Also known as Downup or Downadup, Conficker is a worm of unknown authorship for Windows that made its first appearance in 2008.
7. Stuxnet
Believed to have been created by the Israeli Defence Force together with the American Government, Stuxnet is an example of a virus created for the purpose of cyberwarfare, as it was intended to disrupt the nuclear efforts of the Iranians.
8. Mydoom
Surfacing in 2004, Mydoom was a worm for Windows that became one of the fastest spreading email worm since ILOVEYOU.
9. CryptoLocker
CryptoLocker is a form of Trojan horse ransomware targeted at computers running Windows.
10. Flashback
Though not as damaging as the rest of the malware on this list, this is one of the few Mac malware to have gain notoriety as it showed that Macs are not immune.
1. The Morris worm
In 1998 Robert Morris, a university student, unleashed a worm which affected 10 per cent of all the computers connected to the internet (at the time the net was estimated to consist of 60,000 computers), slowing them down to a halt. Morris is now an associate professor at MIT.
2. The Concept virus
The Concept virus, accidentally shipped on a CD-ROM supplied by Microsoft in 1995, was the first virus to infect Microsoft Word documents. Within days it became the most widespread virus the world had ever seen, taking advantage of the fact that computer users shared documents via email.
3. CIH
The Chernobyl virus (also known as CIH) triggers on April 26 each year, the anniversary of the Chernobyl nuclear disaster. It overwrites a chip inside PCs effectively paralysing the entire computer. Its author, Chen Ing Hau, was caught by the authorities in Taiwan.
4. The Anna Kournikova worm
The Anna Kournikova worm posed as a picture of the tennis player, but was in fact a virus written by Jan de Wit, an obsessed admirer from the Netherlands. He ended up receiving a community service sentence.
5. ILOVEYOU
The Love Bug flooded internet users with ILOVEYOU messages in May 2000, forwarding itself to everybody in the user’s address book. It was designed to steal internet access passwords for its Filipino creator.
6. The Melissa virus
The Melissa virus, written by David L Smith in homage to a Florida stripper, was the first successful email-aware virus and inserted a quote from The Simpsons in to Word documents. Smith was later sentenced to jail for causing over $80 million worth of damage.
7. The Blaster Worm
The Blaster worm launched a denial of service attack against Microsoft’s website in 2003, and infected millions of computers around the world by exploiting a security hole in Microsoft’s software. Its author has never been found.
8. Netsky and Sasser
Sven Jaschan, a German teenager, was found guilty of writing the Netsky and Sasser worms. Jaschan was found to be responsible for 70 per cent of all the malware seen spreading over the internet at the time, but escaped prison and was eventually hired by a security company as an “ethical hacker”.
9. OSX/RSPlug Trojan
In November 2007, the first example of financially-motivated malware for Apple Macs was discovered in the wild. The launch of the OSX/RSPlug Trojan increased fears that Apple’s platform may be targeted more by hackers in the future.
10. Storm worm
The Storm worm, originally posing as breaking news of bad weather hitting Europe, infected computers around the world in 2007. Millions of infected PCs were taken over by hackers and used to spread spam and steal identities.
1. CryptoLocker
When it comes to malware, ransomware is the new kid on the block. While most people can rattle off names like ‘Trojan’, ‘viruses’, and ‘spyware’, they’re often not too familiar with ransomware.
Ransomware is a kind of malware that takes your files hostage. You know in heist movies when the bad guy grabs someone and threatens them in return for money? Ransomware works much like that, except your computer is taken hostage by a faceless bad guy.
2. ILOVEYOU
While ILOVEYOU sounds like a cheerful bon mot you might find printed on the inside of a Valentine’s Day card, it’s actually far, far more sinister than that. ILOVEYOU is one of the most well-known and destructive viruses of all time.
3. MyDoom
MyDoom is considered to be the most damaging virus ever released—and with a name like MyDoom
4. Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
1- Storm Worm
2-ILOVEYOU
3-Melissa Virus
4-WannaCry Ransomware Virus
5-Code Red Worm
6-Nimda
7-Sql slammer
9-Mebroot
10. Sasser
11. Stuxnet
12. Crypto Locker
13. Flashback
14. Conficker
15. Zeus
16. The Morris Worm
17-MyDoom
1. ILOVEYOU :
The ILOVEYOU virus is considered one of the most virulent computer virus ever created and it’s not hard to see why. The virus managed to wreck havoc on computer systems all over the world, causing damages totaling in at an estimate of $10 billion.
2. Code Red:
Code Red first surfaced on 2001 and was discovered by two eEye Digital Security employees. It was named Code Red because the the pair were drinking Code Red Mountain Dew at the time of discovery. The worm targeted computers with Microsoft IIS web server installed, exploiting a buffer overflow problem in the system.
3. Melissa :
Named after an exotic dancer from Florida, it was created by David L. Smith in 1999. It started as an infected Word document that was posted up on the alt.sex usenet group, claiming to be a list of passwords for pornographic sites.
4. Sasser :
A Windows worm first discovered in 2004, it was created by computer science student Sven Jaschan, who also created the Netsky worm. While the payload itself may be seen as simply annoying (it slows down and crashes the computer, while making it hard to reset without cutting the power), the effects were incredibly disruptive, with millions of computers being infected, and important, critical infrastructure affected.
5. Zeus :
Zeus is a Trojan horse made to infect Windows computers so that it will perform various criminal tasks. The most common of these tasks are usually man-in-the-browser keylogging and form grabbing.
6. Conficker :
Also known as Downup or Downadup, Conficker is a worm of unknown authorship for Windows that made its first appearance in 2008. The name comes form the English word, configure and a German pejorative.It infects computers using flaws in the OS to create a botnet.
7. Stuxnet :
Believed to have been created by the Israeli Defence Force together with the American Government, Stuxnet is an example of a virus created for the purpose of cyberwarfare, as it was intended to disrupt the nuclear efforts of the Iranians.
8. Mydoom :
urfacing in 2004, Mydoom was a worm for Windows that became one of the fastest spreading email worm since ILOVEYOU. The author is unknown and it is believed that the creator was paid to create it since it contains the text message, “andy; I’m just doing my job, nothing personal, sorry,”. It was named by McAfee employee Craig Schmugar, one of the people who had originally discovered it.
9. CryptoLocker :
ryptoLocker is a form of Trojan horse ransomware targeted at computers running Windows. It uses several methods to spread itself, such as email, and once a computer is infected, it will proceed to encrypt certain files on the hard drive and any mounted storage connected to it with RSA public key cryptography. While it is easy enough to remove the malware from the computer, the files will still remain encrypted. The only way to unlock the files is to pay a ransom by a deadline.
10. Flashback :
Though not as damaging as the rest of the malware on this list, this is one of the few Mac malware to have gain notoriety as it showed that Macs are not immune. The Trojan was first discovered in 2011 by antivirus company Intego as a fake Flash install.
1. The Morris worm
In 1998 Robert Morris, a university student, unleashed a worm which affected 10 per cent of all the computers connected to the internet (at the time the net was estimated to consist of 60,000 computers), slowing them down to a halt. Morris is now an associate professor at MIT.
2. The Concept virus
The Concept virus, accidentally shipped on a CD-ROM supplied by Microsoft in 1995, was the first virus to infect Microsoft Word documents. Within days it became the most widespread virus the world had ever seen, taking advantage of the fact that computer users shared documents via email.
3. CIH
The Chernobyl virus (also known as CIH) triggers on April 26 each year, the anniversary of the Chernobyl nuclear disaster. It overwrites a chip inside PCs effectively paralysing the entire computer. Its author, Chen Ing Hau, was caught by the authorities in Taiwan.
4. The Anna Kournikova worm
The Anna Kournikova worm posed as a picture of the tennis player, but was in fact a virus written by Jan de Wit, an obsessed admirer from the Netherlands. He ended up receiving a community service sentence.
5. ILOVEYOU
The Love Bug flooded internet users with ILOVEYOU messages in May 2000, forwarding itself to everybody in the user’s address book. It was designed to steal internet access passwords for its Filipino creator.
6. The Melissa virus
The Melissa virus, written by David L Smith in homage to a Florida stripper, was the first successful email-aware virus and inserted a quote from The Simpsons in to Word documents. Smith was later sentenced to jail for causing over $80 million worth of damage.
7. The Blaster Worm
The Blaster worm launched a denial of service attack against Microsoft’s website in 2003, and infected millions of computers around the world by exploiting a security hole in Microsoft’s software. Its author has never been found.
8. Netsky and Sasser
Sven Jaschan, a German teenager, was found guilty of writing the Netsky and Sasser worms. Jaschan was found to be responsible for 70 per cent of all the malware seen spreading over the internet at the time, but escaped prison and was eventually hired by a security company as an “ethical hacker”.
9. OSX/RSPlug Trojan
In November 2007, the first example of financially-motivated malware for Apple Macs was discovered in the wild. The launch of the OSX/RSPlug Trojan increased fears that Apple’s platform may be targeted more by hackers in the future.
10. Storm worm
The Storm worm, originally posing as breaking news of bad weather hitting Europe, infected computers around the world in 2007. Millions of infected PCs were taken over by hackers and used to spread spam and steal identities.
1. The Morris worm
In 1998 Robert Morris, a university student, unleashed a worm which affected 10 per cent of all the computers connected to the internet .
2. The Concept virus
was the first virus to infect Microsoft Word documents. Within days it became the most widespread virus the world had ever seen, taking advantage of the fact that computer users shared documents via email.
3. CIH
the anniversary of the Chernobyl nuclear disaster. It overwrites a chip inside PCs effectively paralysing the entire computer. Its author, Chen Ing Hau, was caught by the authorities in Taiwan.
4. The Anna Kournikova worm
The Anna Kournikova worm posed as a picture of the tennis player, but was in fact a virus written by Jan de Wit, an obsessed admirer from the Netherlands.
5. ILOVEYOU
The Love Bug flooded internet users with ILOVEYOU messages in May 2000, forwarding itself to everybody in the user’s address book. It was designed to steal internet access passwords for its Filipino creator.
6. The Melissa virus
The Melissa virus, written by David L Smith in homage to a Florida stripper, was the first successful email-aware virus and inserted a quote from The Simpsons in to Word documents. Smith was later sentenced to jail for causing over $80 million worth of damage.
7. The Blaster Worm
The Blaster worm launched a denial of service attack against Microsoft’s website in 2003, and infected millions of computers around the world by exploiting a security hole in Microsoft’s software. Its author has never been found.
8. Netsky and Sasser
Sven Jaschan, a German teenager, was found guilty of writing the Netsky and Sasser worms. Jaschan was found to be responsible for 70 per cent of all the malware seen spreading over the internet at the time, but escaped prison and was eventually hired by a security company as an “ethical hacker”.
9. OSX/RSPlug Trojan
In November 2007, the first example of financially-motivated malware for Apple Macs was discovered in the wild. The launch of the OSX/RSPlug Trojan increased fears that Apple’s platform may be targeted more by hackers in the future.
10. Storm worm
The Storm worm, originally posing as breaking news of bad weather hitting Europe, infected computers around the world in 2007. Millions of infected PCs were taken over by hackers and used to spread spam and steal identities.
1. The Morris worm
In 1998 Robert Morris, a university student, unleashed a worm which affected 10 per cent of all the computers connected to the internet (at the time the net was estimated to consist of 60,000 computers), slowing them down to a halt. Morris is now an associate professor at MIT.
2. The Concept virus
The Concept virus, accidentally shipped on a CD-ROM supplied by Microsoft in 1995, was the first virus to infect Microsoft Word documents. Within days it became the most widespread virus the world had ever seen, taking advantage of the fact that computer users shared documents via email.
3. CIH
The Chernobyl virus (also known as CIH) triggers on April 26 each year, the anniversary of the Chernobyl nuclear disaster. It overwrites a chip inside PCs effectively paralysing the entire computer. Its author, Chen Ing Hau, was caught by the authorities in Taiwan.
4. The Anna Kournikova worm
The Anna Kournikova worm posed as a picture of the tennis player, but was in fact a virus written by Jan de Wit, an obsessed admirer from the Netherlands. He ended up receiving a community service sentence.
5. ILOVEYOU
The Love Bug flooded internet users with ILOVEYOU messages in May 2000, forwarding itself to everybody in the user’s address book. It was designed to steal internet access passwords for its Filipino creator.
6. The Melissa virus
The Melissa virus, written by David L Smith in homage to a Florida stripper, was the first successful email-aware virus and inserted a quote from The Simpsons in to Word documents. Smith was later sentenced to jail for causing over $80 million worth of damage.
7. The Blaster Worm
The Blaster worm launched a denial of service attack against Microsoft’s website in 2003, and infected millions of computers around the world by exploiting a security hole in Microsoft’s software. Its author has never been found.
8. Netsky and Sasser
Sven Jaschan, a German teenager, was found guilty of writing the Netsky and Sasser worms. Jaschan was found to be responsible for 70 per cent of all the malware seen spreading over the internet at the time, but escaped prison and was eventually hired by a security company as an “ethical hacker”.
9. OSX/RSPlug Trojan
In November 2007, the first example of financially-motivated malware for Apple Macs was discovered in the wild. The launch of the OSX/RSPlug Trojan increased fears that Apple’s platform may be targeted more by hackers in the future.
10. Storm worm
The Storm worm, originally posing as breaking news of bad weather hitting Europe, infected computers around the world in 2007. Millions of infected PCs were taken over by hackers and used to spread spam and steal identities.
1. The Morris worm
In 1998 Robert Morris, a university student, unleashed a worm which affected 10 per cent of all the computers connected to the internet (at the time the net was estimated to consist of 60,000 computers), slowing them down to a halt. Morris is now an associate professor at MIT.
2. The Concept virus
The Concept virus, accidentally shipped on a CD-ROM supplied by Microsoft in 1995, was the first virus to infect Microsoft Word documents. Within days it became the most widespread virus the world had ever seen, taking advantage of the fact that computer users shared documents via email.
3. CIH
The Chernobyl virus (also known as CIH) triggers on April 26 each year, the anniversary of the Chernobyl nuclear disaster. It overwrites a chip inside PCs effectively paralysing the entire computer. Its author, Chen Ing Hau, was caught by the authorities in Taiwan.
4. The Anna Kournikova worm
The Anna Kournikova worm posed as a picture of the tennis player, but was in fact a virus written by Jan de Wit, an obsessed admirer from the Netherlands. He ended up receiving a community service sentence.
5. ILOVEYOU
The Love Bug flooded internet users with ILOVEYOU messages in May 2000, forwarding itself to everybody in the user’s address book. It was designed to steal internet access passwords for its Filipino creator.
6. The Melissa virus
The Melissa virus, written by David L Smith in homage to a Florida stripper, was the first successful email-aware virus and inserted a quote from The Simpsons in to Word documents. Smith was later sentenced to jail for causing over $80 million worth of damage.
7. The Blaster Worm
The Blaster worm launched a denial of service attack against Microsoft’s website in 2003, and infected millions of computers around the world by exploiting a security hole in Microsoft’s software. Its author has never been found.
8. Netsky and Sasser
Sven Jaschan, a German teenager, was found guilty of writing the Netsky and Sasser worms. Jaschan was found to be responsible for 70 per cent of all the malware seen spreading over the internet at the time, but escaped prison and was eventually hired by a security company as an “ethical hacker”.
9. OSX/RSPlug Trojan
In November 2007, the first example of financially-motivated malware for Apple Macs was discovered in the wild. The launch of the OSX/RSPlug Trojan increased fears that Apple’s platform may be targeted more by hackers in the future.
10. Storm worm
The Storm worm, originally posing as breaking news of bad weather hitting Europe, infected computers around the world in 2007. Millions of infected PCs were taken over by hackers and used to spread spam and steal identities
1-MyDoom
2-ILOVEYOU
3-Melissa Virus
4-WannaCry Ransomware Virus
5-Code Red Worm
6-Nimda
7-Sql slammer
9-Mebroot
ILOVEYOU
2. Code Red
3. Melissa
4. Sasser
5. Zeus
6. Conficker
7. Stuxnet
8. Mydoom
9. CryptoLocker
10. Flashback
11. WannaCry
12-The Morris worm
What is the most famous virus attacks in the world?
28 Responses to “virus attacks”
Mohamed mostafa March 19, 2019 at 8:05 pm
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
1-MyDoom
2-ILOVEYOU
3-Melissa Virus
4-WannaCry Ransomware Virus
5-Code Red Worm
6-Nimda
7-Sql slammer
9-Mebroot
10-Stuxnet
11-Slammer
What is the Moste Famouse virus attacks in the world ?
1)ILovE You
The ILove You virus is considered one of the most virulent computer
2)code Red Worm
3)melissa virus
4)wannacry Rannsomwore virus
5)Nimda
6)Zeus
7)flash back
8)sasser
9)mebroot
10)conficker
11)sqlslammer
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
1. CryptoLocker
2. ILOVEYOU
3. MyDoom
4. Storm Worm
5. Sasser & Netsky
6. Anna Kournikova
7. Slammer
8. Stuxnet
1. The Morris Worm
2. Melissa Virus
3. ILOVEYOU
4. MyDoom
5. WannaCry
1- ILOVEYOU
2- Flashback
3- Stuxnet
4- Storm worm
5- Zeus
6- Conficker
7- Melissa
8- Mydoom
9- CryptoLocker
10-Code Red
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
Getting a computer virus has happened to many users in some fashion or another. To most, it is simply a mild inconvenience, requiring a cleanup and then installing that antivirus program that you’ve been meaning to install but never got around to. But in other cases, it can be a complete disaster, with your computer turning into a very expensive brick which which no amount of antivirus can protect.
In this list, we will highlight some of the worst and notorious computer viruses that have caused a lot of damage in real life. And since people usually equate general malware like worms and trojan horses as viruses, we’re including them as well. These malware have caused tremendous harm, amounting to billions of dollars and disrupting critical real life infrastructure. Here are the 10 most famous and malicious computer viruses.
1. ILOVEYOU
The ILOVEYOU virus is considered one of the most virulent computer virus ever created and it’s not hard to see why. The virus managed to wreck havoc on computer systems all over the world, causing damages totaling in at an estimate of $10 billion. 10% of the world’s Internet-connected computers were believed to have been infected. It was so bad that governments and large corporations took their mailing system offline to prevent infection.
The virus was created by two Filipino programers, Reonel Ramones and Onel de Guzman. What it did was use social engineering to get people to click on the attachment; in this case, a love confession. The attachment was actually a script that poses as a TXT file, due to Windows at the time hiding the actual extension of the file. Once clicked, it will send itself to everyone in the user’s mailing list and proceed to overwrite files with itself, making the computer unbootable. The two were never charged, as there were no laws about malware. This led to the enactment of the E-Commerce Law to address the problem.
2. Code Red
Code Red first surfaced on 2001 and was discovered by two eEye Digital Security employees. It was named Code Red because the the pair were drinking Code Red Mountain Dew at the time of discovery. The worm targeted computers with Microsoft IIS web server installed, exploiting a buffer overflow problem in the system. It leaves very little trace on the hard disk as it is able to run entirely on memory, with a size of 3,569 bytes. Once infected, it will proceed to make a hundred copies of itself but due to a bug in the programming, it will duplicate even more and ends up eating a lot of the systems resources.
It will then launch a denial of service attack on several IP address, famous among them the website of the White House. It also allows backdoor access to the server, allowing for remote access to the machine. The most memorable symptom is the message it leaves behind on affected web pages, “Hacked By Chinese!”, which has become a meme itself. A patch was later released and it was estimate that it caused $2 billion in lost productivity. A total of 1-2 million servers were affected, which is amazing when you consider there were 6 million IIS servers at the time.
3. Melissa
Named after an exotic dancer from Florida, it was created by David L. Smith in 1999. It started as an infected Word document that was posted up on the alt.sex usenet group, claiming to be a list of passwords for pornographic sites. This got people curious and when it was downloaded and opened, it would trigger the macro inside and unleash its payload. The virus will mail itself to the top 50 people in the user’s email address book and this caused an increase of email traffic, disrupting the email services of governments and corporations. It also sometimes corrupted documents by inserting a Simpsons reference into them.
Smith was eventually caught when they traced the Word document to him. The file was uploaded using a stolen AOL account and with their help, law enforcement was able to arrest him less than a week since the outbreak began. He cooperated with the FBI in capturing other virus creators, famous among them the creator of the Anna Kournikova virus. For his cooperation, he served only 20 months and paid a fine of $5000 of his 10 year sentence. The virus reportedly caused $80 million in damages.
4. Sasser
A Windows worm first discovered in 2004, it was created by computer science student Sven Jaschan, who also created the Netsky worm. While the payload itself may be seen as simply annoying (it slows down and crashes the computer, while making it hard to reset without cutting the power), the effects were incredibly disruptive, with millions of computers being infected, and important, critical infrastructure affected. The worm took advantage of a buffer overflow vulnerability in Local Security Authority Subsystem Service (LSASS), which controls the security policy of local accounts causing crashes to the computer. It will also use the system resources to propagate itself to other machines through the Internet and infect others automatically.
The effects of the virus were widespread as while the exploit was already patched, many computers haven’t updated. This led to more than a million infections, taking out critical infrastructures, such as airlines, news agencies, public transportation, hospitals, public transport, etc. Overall, the damage was estimated to have cost $18 billion. Jaschen was tried as a minor and received a 21 month suspended sentence.
5. Zeus
Zeus is a Trojan horse made to infect Windows computers so that it will perform various criminal tasks. The most common of these tasks are usually man-in-the-browser keylogging and form grabbing. The majority of computers were infected either through drive-by downloads or phishing scams. First identified in 2009, it managed to compromise thousands of FTP accounts and computers from large multinational corporations and banks such as Amazon, Oracle, Bank of America, Cisco, etc. Controllers of the Zeus botnet used it to steal the login credentials of social network, email and banking accounts.
In the US alone, it was estimated that more than 1 million computers were infected, with 25% in the US. The entire operation was sophisticated, involving people from around the world to act as money mules to smuggle and transfer cash to the ringleaders in Eastern Europe. About $70 million were stolen and in possession of the ring. 100 people were arrested in connection of the operation. In late 2010, the creator of Zeus announced his retirement but many experts believe this to be false.
6. Conficker
Also known as Downup or Downadup, Conficker is a worm of unknown authorship for Windows that made its first appearance in 2008. The name comes form the English word, configure and a German pejorative.It infects computers using flaws in the OS to create a botnet. The malware was able to infect more than 9 millions computers all around the world, affecting governments, businesses and individuals. It was one of the largest known worm infections to ever surface causing an estimate damage of $9 billion.
7. Stuxnet
8. Mydoom
9. CryptoLocker
10. Flashback
1 – ILOVEYOU
2 – Pikachu
3 – Anna Kournikova
4 – Sircam
5 – Code Red worm
6 – Code Red II
7 – Nimda
8 – Klez
9 – Beast
10 – Mylife
11 – SQL Slammer
12 – Blaster
I love you
Klez
Blaster
Mylife
Nimda
Code red
Code red worm
Beast
Mydoom
Conficker
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
1. CryptoLocker
2.ILOVEYOU
It’s been 15 years since ILOVEYOU was let loose on the internet. By today’s standards it’s a pretty tame virus, but in 2000 it was the most damaging malware event of all time
3. MyDoom
MyDoom, like ILOVEYOU, is a record holder and was the fastest spreading email-based worm ever
4.Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006, people would open the email and click on a link to the news story and that’s when the problems started
5.Slammer
Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds
Sayed Kenawy
Sayed Kenawy
Professor Associate
Sayed Kenawy® Sayedkenawy.com
virus attacks
March 19, 2019 | sayed kenawy | information security
What is the most famous virus attacks in the world?
45 Responses to “virus attacks”
Mohamed mostafa March 19, 2019 at 8:05 pm
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
محمد مصطفي صبري محمود
المستوي الرابع
Reply
Toka mohamed abdallah yousef March 19, 2019 at 8:19 pm
Resident Virus
Resident viruses live in your RAM memory. It can interfere with normal system operation which can lead to the corruption of files and programs. The most popular examples of resident viruses are CMJ, Meve, MrKlunky, and Randex.
Multipartite Virus
This type of virus can easily spread in your computer system. It is very infectious, performing unauthorized actions in your operating system, in folders, and other programs on the computer. They have the ability to infect both the executable files and the boots sector.
Direct Action Virus
Direct action viruses attack certain types of files, typically .exe and .com files. The main purpose of this virus is to replicate and infect files in folders. On the lighter note, they do not typically delete files or affect PC performance and speed. It can be easily removed by antivirus programs.
Browser Hijacker
This type of virus infects your web browser in which it will bring you to different websites. Typically, if you key in a domain name in the internet address bar, the browser hijacker will open multiple fake websites that may harm your computer. On the other hand, most trusted browsers have built-in features to block them ahead.
Overwrite Virus
From the name itself, this virus overwrites the content of a file, losing the original content. It infects folders, files, and even programs. To delete this virus, you also need to get rid of your file. Thus, it is important to back up your data.
Web Scripting Virus
This virus lives in certain links, ads, image placement, videos, and layout of a website. These may carry malicious codes in which when you click, the viruses will be automatically downloaded or will direct you to malicious websites.
Boot Sector Virus
Boot sector viruses affect floppy disks. They came to existence when floppy disks are important in booting a computer. Although they are not very common today, it is still causing other computer units, especially the outdated ones. Some examples include Polyboot.B and AntiEXE.
Macro Virus
Macro viruses target applications and software that contain macros. These viruses can carry out series of operations affecting the performance of the program or software. Some examples of macro viruses are O97M/Y2K, Bablas, Melissa.A, and Relax.
Directory Virus
Directory viruses change file paths. When you run programs and software that are infected with directory viruses, the virus program also runs in the background. Further, it may be difficult for you to locate the original app or software once infected with directory viruses.
Reply
Mohamed noshy March 20, 2019 at 2:11 pm
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
محمد نصحى محمود محمد
المستوى الرابع اتصالات
Reply
خالد محمد عبد اللطيف March 20, 2019 at 6:45 pm
1-MyDoom
2-ILOVEYOU
3-Melissa Virus
4-WannaCry Ransomware Virus
5-Code Red Worm
6-Nimda
7-Sql slammer
9-Mebroot
ومن وجهة نظرى ان احطرهم واكثرهم استغلال لحد هذة الساعة هما
WannaCry Ransomware Virus
Sql slammer
وبالاخص فى الوطن العربى
Reply
Amina Ashraf March 22, 2019 at 10:11 pm
1. CryptoLocker
2.ILOVEYOU
It’s been 15 years since ILOVEYOU was let loose on the internet. By today’s standards it’s a pretty tame virus, but in 2000 it was the most damaging malware event of all time
3. MyDoom
MyDoom, like ILOVEYOU, is a record holder and was the fastest spreading email-based worm ever
4.Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006, people would open the email and click on a link to the news story and that’s when the problems started
5.Slammer
Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds
Reply
mahmoud allam mahmoud March 23, 2019 at 6:25 pm
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
Reply
Ahmed Ali Elbaz Mohamed Hedihed March 27, 2019 at 8:52 am
What is the most famous virus attacks in the world?
1-The Morris Worm
On November 2, 1988, the worm was released and within 24 hours, an estimated 10 percent of computers connected to the internet were affected. The malware slowed down thousands of systems by creating files in temporary folders in an effort to replicate itself.
2-ILOVEYOU
It came with the attachment, “LOVE-LETTER-FOR-YOU.txt.vbs”. Once opened, it would send itself to everyone in the Outlook address book, making this one of the fastest-spreading viruses at the time.
3-MyDoom
MyDoom could further stop a device from running updates to security software!
The most concerning part of the virus was its ability to open a back-door vulnerability in systems for hackers to exploit. Some of these back-doors remain open.
4-WannaCry
It was particularly cruel: using a back-door exploitation in Microsoft Windows, it would encrypt all data on the device and hold your files to ransom,Once infected, a computer’s screen locks, showing a red warning and two countdowns, one until the ransom demand would rise and the other until files would be permanently deleted.
5-CryptoLocker
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money,
6-Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
7-Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
8-Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
أحمد على الباز محمد
المستوي الرابع اتصالات
Reply
Esraa Abdulbadea Ahmed March 27, 2019 at 5:32 pm
1-MyDoom
The most devastating computer virus to date is MyDoom, which caused over $38 billion in damages. In addition to being the most expensive virus to date, its effects were far-reaching and fast-moving. When a user was infected with the virus it creates network openings which allowed others to have access to your computer. In addition, the virus also had the ability to open random programs.
2_SoBig
Another harmful and expensive computer virus is SoBig. In 2003, the SoBig virus caused over $37.1 billion in devastation. This fast-spreading virus circulated through email as viral spam, and if exposed, the virus had the capability to copy files, emailing itself to others and causing serious damage to computer software and hardware.
3-ILOVEYOU
ILOVEYOU is another particularly malicious virus that spread quickly through email, websites and file sharing. The ILOVEYOU virus, or the “Love Letter” worm, affected more than 500,000 systems in 2000 and produced over $15 billion in damages, including $5.5 billion in the first week alone. The virus replicated itself and exposed itself to everyone in the owner’s contact list. This virus was a pioneer for other viruses, as it was one of the first to attach to an email.
4-Conficker
The Conficker virus caused over $9.1 billion in damages in 2007 and infected millions of computers around the world. The virus scanned computers for weaknesses and vulnerabilities, logged keystrokes and downloaded code from hacker-selected websites and more.
5-Code Red
One of the most well-known viruses to date is the Code Red virus. It caused over $2 billion in damages in 2001, and had the ability to break into computer networks and exploit weaknesses in Microsoft software. Once the virus infected the machine, it actively looked for other machines on the networks to attack.
6-Melissa
The Melissa virus was a particularly slimy virus that sent out infected Microsoft Word documents through Microsoft Outlook, delivering viral messages to everyone listed in the Outlook address book. The messages appeared to be coming from the Outlook owner, but was really the Melissa virus at work. A tell-tale indicator that Melissa had infiltrated your Outlook is if your contacts had received an email from you with the message: “Here is that document you asked for … don’t show anyone else.” There would be a word document attached, complete with the Melissa virus. In 1999, Melissa caused $1.2 billion in damages.
7-SQL Slammer
SQL Slammer is a virus that greatly affected banks and caused Internet speed to lag significantly across the globe. SQL Slammer caused an estimated $750 million in damages in 2003, and affected 200,000 computers worldwide.
8-Nimda
Nimda is one of the Internet’s most widespread viruses and among the costliest as well. The virus caused $635 million worth of damages in 2001 and caused Internet browsing time to slow significantly. Additionally, it could affect a user’s email account and send out a read-me file to all contacts listed in the email address book. The virus caused traffic and Internet speeds to slowdown.
9-Sasser
Sasser created quite a bit of trouble in 2004 when it piled up $500 million in damages, devastated the British Coast Guard mapping system and caused numerous canceled flights. The creator of Sasser was identified as a teenager from Germany, and was quickly apprehended when one of his “friends” turned him in for a $250,000 bounty posted by Microsoft
10-The Bottom Line
While the Internet can be a wonderful resource for doing everything from communicating with friends and colleagues to checking your bank statement, it is not necessarily the safest of places to perform such transactions when viruses are lurking in the midst. Protect yourself and your computer with quality anti-virus software, and continue to browse safely on the Internet.
1. ILOVEYOU
The ILOVEYOU virus is considered one of the most virulent computer virus ever created.
2. Code Red
Code Red first surfaced on 2001 and was discovered by two eEye Digital Security employees. It was named Code Red because the the pair were drinking Code Red Mountain Dewat the time of discovery.
3. Melissa
Named after an exotic dancer from Florida, it was created by David L. Smith in 1999. It started as an infected Word document that was posted up on the alt.
4. Sasser
A Windows worm first discovered in 2004, it was created by computer science student Sven Jaschan, who also created the Netsky worm.
5. Zeus
Zeus is a Trojan horse made to infect Windows computers so that it will perform various criminal tasks.
6. Conficker
Also known as Downup or Downadup, Conficker is a worm of unknown authorship for Windows that made its first appearance in 2008.
7. Stuxnet
Believed to have been created by the Israeli Defence Force together with the American Government, Stuxnet is an example of a virus created for the purpose of cyberwarfare, as it was intended to disrupt the nuclear efforts of the Iranians.
8. Mydoom
Surfacing in 2004, Mydoom was a worm for Windows that became one of the fastest spreading email worm since ILOVEYOU.
9. CryptoLocker
CryptoLocker is a form of Trojan horse ransomware targeted at computers running Windows.
10. Flashback
Though not as damaging as the rest of the malware on this list, this is one of the few Mac malware to have gain notoriety as it showed that Macs are not immune.
1. The Morris Worm
2. Melissa Virus
3. ILOVEYOU
4. MyDoom
5. WannaCry
6.CryptoLocker
7. Flashback
1. CryptoLocker
When it comes to malware, ransomware is the new kid on the block. While most people can rattle off names like ‘Trojan’, ‘viruses’, and ‘spyware’, they’re often not too familiar with ransomware.
Ransomware is a kind of malware that takes your files hostage. You know in heist movies when the bad guy grabs someone and threatens them in return for money? Ransomware works much like that, except your computer is taken hostage by a faceless bad guy.
Released in September 2013, CryptoLocker spread through email attachments and encrypted the user’s files so that they couldn’t access them.
The hackers then sent a decryption key in return for a sum of money, usually somewhere from a few hundred pounds up to a couple of grand.
With some of the hacking attempts, System Restore or recovery software worked. Although with many of the infected computers, if the victims didn’t pay up they’d lose all their files. Now is a good time to remind you to always back your files up!
In June 2014, Operation Tovar took down Evgeniy Bogachev, the leader of the gang of hackers behind CryptoLocker. In February, the FBI offered a cool $3 million reward for Bogachev.
Cost of the malware: With 500,000 victims, CryptoLocker made upwards of $30 million in 100 days.
2. ILOVEYOU
While ILOVEYOU sounds like a cheerful bon mot you might find printed on the inside of a Valentine’s Day card, it’s actually far, far more sinister than that. ILOVEYOU is one of the most well-known and destructive viruses of all time.
It’s been 15 years since ILOVEYOU was let loose on the internet. By today’s standards it’s a pretty tame virus, but in 2000 it was the most damaging malware event of all time. Likely, ILOVEYOU inspired many hackers to wield their keyboard as a weapon.
3. MyDoom
MyDoom is considered to be the most damaging virus ever released—and with a name like MyDoom would you expect anything less?
MyDoom, like ILOVEYOU, is a record-holder and was the fastest-spreading email-based worm ever. MyDoom was an odd one, as it hit tech companies like SCO, Microsoft, and Google with a Distributed Denial of Service attack.
25% of infected hosts of the .A version of the virus allegedly hit the SCO website with a boatload of traffic in an attempt to crash its servers.
As well as targeting tech companies, MyDoom spammed junk mail through infected computers, with the text that said “andy; I’m just doing my job, nothing personal, sorry”. Who was Andy? Who knows.
In 2004, roughly somewhere between 16-25% of all emails had been infected by MyDoom.
Cost of the malware: $38 billion.
4. Storm Worm
Storm Worm was a particularly vicious virus that made the rounds in 2006 with a subject line of ‘230 dead as storm batters Europe’. Intrigued, people would open the email and click on a link to the news story and that’s when the problems started.
Storm Worm was a Trojan horse that infected computers, sometimes turning them into zombies or bots to continue the spread of the virus and to send a huge amount of spam mail.
Tip: never open a link in an email unless you know exactly what it is.
By July 2007, Storm Worm was picked up in more than 200 million emails.
Cost of the malware: An exact cost is yet to be calculated.
5. Sasser & Netsky
17-year-old Sven Jaschan created Sasser & Netsky, two worms, in the early noughties. Sasser & Netsky are actually two separate worms, but they’re often grouped together because the similarities in the code led experts to believe they were created by the same person.
Sasser spread through infected computers by scanning random IP addresses and instructing them to download the virus. Netsky was the more familiar email-based worm. Netsky was actually the more viral virus, and caused a huge amount of problems in 2004.
A German student, Jaschan was arrested when multiple tip-offs were reported to the police. Speculation suggested Jaschan had actually written the viruses to create business for his mother and stepfather’s PC business. Because he was under 18 when he wrote the virus, Jaschan spent his prison sentence on probation.
Even more interesting is Jaschan’s motivation. MyDoom was spreading rapidly at the time and Jaschan, a newbie coder, wanted to see what would happen if his bug could spread faster than MyDoom. Things quickly escalated from there.
Sasser was so effective it actually ground one third of the post offices in Taiwan to a halt, shut down 130 branches of a Finnish bank, and forced rail and transatlantic flights to be cancelled.
Cost of malware: Around $31 billion.
6. Anna Kournikova
What’s a tennis player got to do with a list of interesting viruses? Quite a lot, as it so happens.
We’re going to get this out of the way first: the Anna Kournikova virus is pretty tame compared to many on the list.
So in the early to mid-noughties, Anna Kournikova was one of the most searched terms on the internet. People were just very into tennis.
Jan De Wit, a 20-year-old Dutch man, wrote the virus as ‘a joke’. The subject was “Here you have, ;0)” with an attached file called AnnaKournikova.jpg.vbs. Anna was pretty harmless and didn’t do much actual damage, though De Wit turned himself into police anyway.
The mayor of the town came forward and said the city should be proud to have produced such a talented young man and offered him a job as a techie once he was finished his education.
Cost of the malware: $166,000.
7. Slammer
While most of the malware on this list strictly hit computers, Slammer was created with broader ambitions. Slammer is the kind of virus that makes it into films, as only a few minutes after infecting its first victim, it was doubling itself every few seconds. 15 minutes in and Slammer had infected half of the servers that essentially ran the internet.
The Bank of America’s ATM service crashed, 911 services went down, and flights had to be cancelled because of online errors. Slammer, quite aptly, caused a huge panic as it had effectively managed to crash the internet in 15 quick minutes.
8. Stuxnet
Stuxnet is easily the scariest virus on the list as it was built by government engineers in the US with the intention of obstructing nukes from being built in Iran.
Yes, you read that right. Who needs to target email when they can gun for nukes?
Stuxnet spread by a USB thumb drive and targeted software controlling a facility in Iran that held uranium. The virus was so effective it caused their centrifuges to self-destruct, setting Iran’s nuclear development back and costing a lot of money.
Stuxnet is the first real venture into cyberwar and it definitely asks the question as to what will come next. The idea of digital weaponry is pretty scary, isn’t it?
Cost of the malware: Unknown.
So there you have it: while viruses and malware might seem like a myth drummed up by tech companies, they are a very real threat that have caused billions in damage.
This entry was posted on Mon Feb 22, 2016 filed under digital trends , online security and online threats
محمد سامي قاسم
المستوي الرابع قسم اتصالات
mohamed samy kassem