List of computer worms
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| Name | Alias(es) | Type | Subtype | Isolation Date | Isolation | Origin | Author | Notes | ||
| Badtrans | Installs a keylogger; distributes logged information | |||||||||
| Bagle | Beagle | |||||||||
| Blaster | Lovesan | Targeted to Bill Gates; contained message "billy gates why do you make this possible ? Stop making money and fix your software!!" | ||||||||
| Brontok | W32/Rontokbro.gen@MM, W32.Rontokbro@mm, BackDoor.Generic.1138, W32/Korbo-B, Worm/Brontok.a, Win32.Brontok.A@mm, Worm.Mytob.GH, W32/Brontok.C.worm, and Win32/Brontok.E, W32.Rontokbro.D@mm. | Spread through an Indonesian e-mail headed with "stop the collapse in this country"; destroys firewalls | ||||||||
| Code Red | Defaced websites with "Hacked by Chinese!" | |||||||||
| Code Red II | Exploited Microsoft Internet Information Server security holes. | |||||||||
| Dabber | ||||||||||
| Doomjuice | Attacks computers which have previously been infected by the Mydoom worm. | |||||||||
| ExploreZip | I-Worm.ZippedFiles | June 6, 1999 | Spread through zipped documents in a spam e-mail. | |||||||
| Father Christmas | HI.COM | |||||||||
| Hybris | Snow White, Full Moon, Vecna.22528 | Brazil | Vecna | Spreads through an e-mail from "haha@sexyfun.net" | ||||||
| Hydra | Loveletter, LoveBug | Hong Kong | Michael Buen(possibly) | |||||||
| ILOVEYOU | ||||||||||
| Klez | ||||||||||
| Mabutu | ||||||||||
| Melissa | Simpsons, Kwyjibo, Kwejeebo | March 26, 1999 | Not originally intended as harmful, but crashed servers by flooding them with e-mail | |||||||
| Morris | Robert Tappan Morris | The first computer worm, written to gauge the size of the Internet. It unintentionally slowed and crashed computers. | ||||||||
| Mydoom | W32.MyDoom@mm, Novarg, Mimail.R, Shimgapi | January 26, [2004]] | Fastest-spreading e-mail worm known; used to attack SCO Group. | |||||||
| Mylife | W32.MyLife.C@mm | [1] | ||||||||
| Netsky | February 18, 2004 | Germany | Sven Jaschan | |||||||
| Nimda | September 2001 | Suspected to be connected to Al Qaeda because of release date; uses multiple infection vectors | ||||||||
| Sadmind | May 8, 2001 | |||||||||
| Sasser | Big One | April 30, 2004 | Sven Jaschan | |||||||
| Sircam | Spread through e-mail with text like "I send you this file in order to have your advice." | |||||||||
| Sober | CME-681, WORM_SOBER.AG | October 24, 2003 | Germany, possibly from National Democratic Party of Germany | Was disguised as e-mail from United States government. | ||||||
| Sobig | Also a Trojan horse because it appeared to be a non-malware program. | |||||||||
| SQL slammer | DDOS.SQLP1434.A, the Sapphire Worm, SQL_HEL, W32/SQLSlammer | Caused global Internet slowdown | ||||||||
| Swen | ||||||||||
| Supernova Worm | Supova | Poses as files relating to video games Quake and Grand Theft Auto; attacks Christian websites | ||||||||
| Upering | Annoyer.B, Sany | July 22, 2003 | ||||||||
| W32/Bolgimo.worm | ||||||||||
| W32/Fus.worm | ||||||||||
| W32/IRCbot.worm! | ||||||||||
| WANK | OILZ | Spread a pacifist, anti-nuclear political message | ||||||||
| Welchia | Nachia | A helpful worm meant to install security patches. | ||||||||
| Witty | Appeared very rapidly after announcement of Internet Security Systems vulnerability | |||||||||
| Zotob | Farid Essebar and Atilla Ekici |

