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The 15 deadliest computer viruses

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Stefan Andrei
Stefan Andrei

Once Internet has reached almost every household and global network has become a support for services of various companies, computer viruses have spread increasingly more and began to wreak havoc really significant, compromising not only data on ordinary users' computers, but also the paramount of various institutions, banks or airlines. Here is a list with the most dangerous computer viruses in history.

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1 The Creeper(1971) The Creeper, the first computer virus was created in 1971 by Bob Thomas. The virus did not affect computers, he just self-replicate and leave behind the following message: `I'm the creeper, catch me if you can!". For his removal was created the first program "The Reaper", the first anti-virus in history.
2 Morris(1988) The virus was created by a Cornell University graduate Robert T Morris. This virus initially wanted to find out how big the internet network, but an error caused the virus to infect 6,000 computers in universities and military bases. Estimated damage: between 10 million and 100 million US dollars.
3 Mellissa(1999) The virus was created by David L.Smith, and named after a lap dancer from Florida. Mellissa is one of the first viruses transmitted via email. Once activated the virus multiplies and sends itself to 50 contacts in the users Windows address book. The impact of this virus was so big that giant companies: Alcatel, Microsoft, Intel closed their operating systems through email to find a solution.
4 CIH(1998) The creator of the virus is Chen Ing-Hau, a student at Tatung University in Taiwan. He wanted to test the efficiency of the The virus infects and destroys the BIOS. 60 million computers from around the world were infected. Damages are estimated at 1 billion US Dollar Creator came with an anti- virus and the problem was solved
5 I LOVE YOU(2000) Onel De Guzman has created the virus in the year 2000. The purpose for which it was created: the theft of passwords. Its mode of transmission is via email. If the victim opened the attachment: LOVE-LETTER-FOR-YOU.TXT.vbs , the virus overwrites all image files on the PC and steals all the passwords. Also, the virus multiplies and emails itself to all contacts in the users Windows address book. 10% of Internet-connected PCs have been infected during that time. Damage: 15 billion dollars
6 Stuxnet(2009) The virus spreads through USB. It was developed by Israel in collaboration with the Americans for sabotage Iran's nuclear program. The virus was discovered in 2010, but it affecting the system since 2009. The virus has managed to destroy one- fifth of the number of centrifuges Iran.
7 Conficker(2009) The creator of the virus remains unknown. The virus uses the errors from the operating system to create a botnet (military computers) to launch DDOS 9 million computers were infected and the damage is estimated at $ 9 billion.
8 Cryptolocker(2013) It was discovered in 2013. It spreads via email and botnet. After encrypting files, the virus displays a message demanding a ransom. The virus was isolated in 2014.
9 Code Red (2001) The virus has infected a million computers and 360,000 hosts. The contaminated PC Were Used for a DDOS attack on White House website. This worm exploited an OS vulnerability in machines with W 2000 and NT. The White House managed to repulse the attack.
10 Nimida(2001) Nimda was a worm designed to infect servers, considerably slowing the internet traffic. The virus has been released a week after the 11 September 2001 terrorist attacks. The virus was spreading through four pathways: email, vulnerable server, shared folder, file transfer. Many considered it a terrorist attack and made the link with Al Qaeda.
11 Zeus(2009) Zeus is a Trojan virus created by a criminal organization in 2009. The targets of this virus were big banks and corporations. The criminals managed to steal 70 million dollars but were caught. 74000 FTP accounts were compromised PC and 3.6 million were infected in the US.
12 Slammer (2003) A worm virus that caused DDoS attacks on internet hosts. The virus could double its size every 8.5 seconds. The virus randomly selects IP addresses and launch DDoS attacks. In total 200,000 computers were infected. Among the victims are Bank America ATM, 911 in Washington D.C emergency, Continental Airlines and a nuclear power plant in Ohio. Damage: $ 1200000000.
13 Sasser(2004) Compared to other viruses, does not spread via email and requires no user action. He exploits a flaw in the operating system. A million PCs were infected and vital infrastructures were affected. Estimated damage: 18 billion US Dollars.
14 Sobig.F (2003) It is both worm and Trojan. Once the user opened the email, it triggered the virus, which then went hunting for addresses. The virus managed to paralyze airlines in Canada and closed / slowed the activity of several corporations.Two million computers have been compromised .Estimated Damage: 37 billion US dollars.
15 My Doom(2004) The fastest spreading virus ever It spreads via email. When the victim opened the email, the virus was transmitted to all addresses. Estimated damage: 38.5 billion dollars.
For more interesting facts please visit my website: https://factsempire.com/

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The 15 deadliest computer viruses

  • 1. The 15 deadliest viruses of all time https://factsempire.com/
  • 2. 1 The Creeper(1971) The Creeper, the first computer virus was created in 1971 by Bob Thomas. The virus did not affect computers, he just self-replicate and leave behind the following message: `I'm the creeper, catch me if you can!". For his removal was created the first program "The Reaper", the first anti-virus in history.
  • 3. 2 Morris(1988) The virus was created by a Cornell University graduate Robert T Morris. This virus initially wanted to find out how big the internet network, but an error caused the virus to infect 6,000 computers in universities and military bases. Estimated damage: between 10 million and 100 million US dollars.
  • 4. 3 Mellissa(1999) The virus was created by David L.Smith, and named after a lap dancer from Florida. Mellissa is one of the first viruses transmitted via email. Once activated the virus multiplies and sends itself to 50 contacts in the users Windows address book. The impact of this virus was so big that giant companies: Alcatel, Microsoft, Intel closed their operating systems through email to find a solution.
  • 5. 4 CIH(1998) The creator of the virus is Chen Ing-Hau, a student at Tatung University in Taiwan. He wanted to test the efficiency of the The virus infects and destroys the BIOS. 60 million computers from around the world were infected. Damages are estimated at 1 billion US Dollar Creator came with an anti- virus and the problem was solved
  • 6. 5 I LOVE YOU(2000) Onel De Guzman has created the virus in the year 2000. The purpose for which it was created: the theft of passwords. Its mode of transmission is via email. If the victim opened the attachment: LOVE-LETTER-FOR-YOU.TXT.vbs , the virus overwrites all image files on the PC and steals all the passwords. Also, the virus multiplies and emails itself to all contacts in the users Windows address book. 10% of Internet-connected PCs have been infected during that time. Damage: 15 billion dollars
  • 7. 6 Stuxnet(2009) The virus spreads through USB. It was developed by Israel in collaboration with the Americans for sabotage Iran's nuclear program. The virus was discovered in 2010, but it affecting the system since 2009. The virus has managed to destroy one- fifth of the number of centrifuges Iran.
  • 8. 7 Conficker(2009) The creator of the virus remains unknown. The virus uses the errors from the operating system to create a botnet (military computers) to launch DDOS 9 million computers were infected and the damage is estimated at $ 9 billion.
  • 9. 8 Cryptolocker(2013) It was discovered in 2013. It spreads via email and botnet. After encrypting files, the virus displays a message demanding a ransom. The virus was isolated in 2014.
  • 10. 9 Code Red (2001) The virus has infected a million computers and 360,000 hosts. The contaminated PC Were Used for a DDOS attack on White House website. This worm exploited an OS vulnerability in machines with W 2000 and NT. The White House managed to repulse the attack.
  • 11. 10 Nimida(2001) Nimda was a worm designed to infect servers, considerably slowing the internet traffic. The virus has been released a week after the 11 September 2001 terrorist attacks. The virus was spreading through four pathways: email, vulnerable server, shared folder, file transfer. Many considered it a terrorist attack and made the link with Al Qaeda.
  • 12. 11 Zeus(2009) Zeus is a Trojan virus created by a criminal organization in 2009. The targets of this virus were big banks and corporations. The criminals managed to steal 70 million dollars but were caught. 74000 FTP accounts were compromised PC and 3.6 million were infected in the US.
  • 13. 12 Slammer (2003) A worm virus that caused DDoS attacks on internet hosts. The virus could double its size every 8.5 seconds. The virus randomly selects IP addresses and launch DDoS attacks. In total 200,000 computers were infected. Among the victims are Bank America ATM, 911 in Washington D.C emergency, Continental Airlines and a nuclear power plant in Ohio. Damage: $ 1200000000.
  • 14. 13 Sasser(2004) Compared to other viruses, does not spread via email and requires no user action. He exploits a flaw in the operating system. A million PCs were infected and vital infrastructures were affected. Estimated damage: 18 billion US Dollars.
  • 15. 14 Sobig.F (2003) It is both worm and Trojan. Once the user opened the email, it triggered the virus, which then went hunting for addresses. The virus managed to paralyze airlines in Canada and closed / slowed the activity of several corporations.Two million computers have been compromised .Estimated Damage: 37 billion US dollars.
  • 16. 15 My Doom(2004) The fastest spreading virus ever It spreads via email. When the victim opened the email, the virus was transmitted to all addresses. Estimated damage: 38.5 billion dollars.
  • 17. For more interesting facts please visit my website: https://factsempire.com/