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2. Sasser (computer worm) - Wikipedia

   en.wikipedia.org/wiki/Sasser_(computer_worm)

   Sasser is a computer worm that affects computers running vulnerable versions of the Microsoft operating systems Windows XP and Windows 2000. Sasser spreads by exploiting the system through a vulnerable port. Thus it is particularly virulent in that it can spread without user intervention, but it is also easily stopped by a properly configured ...

3. Conficker - Wikipedia

   en.wikipedia.org/wiki/Conficker

   Conficker, also known as Downup, Downadup and Kido, is a computer worm targeting the Microsoft Windows operating system that was first detected in November 2008. [2] It uses flaws in Windows OS software (MS08-067 / CVE-2008-4250) [3] [4] and dictionary attacks on administrator passwords to propagate while forming a botnet, and has been unusually difficult to counter because of its combined use ...

4. Happy99 - Wikipedia

   en.wikipedia.org/wiki/Happy99

   Happy99 (also termed Ska or I-Worm) [ 4] is a computer worm for Microsoft Windows. It first appeared in mid-January 1999, spreading through email and usenet. The worm installs itself and runs in the background of a victim's machine, without their knowledge. It is generally considered the first virus to propagate by email, and has served as a ...

5. Ramnit - Wikipedia

   en.wikipedia.org/wiki/Ramnit

   Ramnit is a computer worm affecting Windows users. It was estimated that it infected 800 000 Windows PCs between September and December 2011. [1] The Ramnit botnet was dismantled by Europol and Symantec in 2015. [2] At its peak in 2015, Ramnit was estimated to have infected 3,200,000 PCs. [3] Ramnit infects removable media such as USB drives ...

6. CIH (computer virus) - Wikipedia

   en.wikipedia.org/wiki/CIH_(computer_virus)

   CIH, also known as Chernobyl or Spacefiller, is a Microsoft Windows 9x computer virus that first emerged in 1998. Its payload is highly destructive to vulnerable systems, overwriting critical information on infected system drives and, in some cases, destroying the system BIOS. The virus was created by Chen Ing-hau (陳盈豪, pinyin: Chén ...

7. Sality - Wikipedia

   en.wikipedia.org/wiki/Sality

   Sality is a family of polymorphic file infectors, which target Windows executable files with the extensions .EXE or .SCR. [1] Sality utilizes polymorphic and entry-point obscuring (EPO) techniques to infect files using the following methods: not changing the entry point address of the host, and replacing the original host code at the entry point of the executable with a variable stub to ...