McAfee AVERT Stinger
Stinger is a stand-alone utility used to detect and remove specific viruses. It is not a substitute for full anti-virus protection, but rather a tool to assist administrators and users when dealing with an infected system. Stinger utilizes next generation scan engine technology, including process scanning, digitally signed DAT files, and scan performance optimizations.
http://vil.nai.com/vil/stinger/
This version of Stinger includes detection for all known variants, as of June 14, 2004:
BackDoor-AQJ BackDoor-JZ Bat/Mumu.worm
Exploit-DcomRpc IPCScan IRC/Flood.ap
IRC/Flood.bi IRC/Flood.cd NTServiceLoader
PWS-Narod PWS-Sincom.dll W32/Anig.worm
W32/Bagle@MM W32/Blaster.worm (Lovsan) W32/Bugbear@MM
W32/Deborm.worm.gen W32/Doomjuice.worm W32/Dumaru
W32/Elkern.cav W32/Fizzer.gen@MM W32/FunLove
W32/Klez W32/Korgo.worm W32/Lirva
W32/Lovgate W32/Mimail W32/MoFei.worm
W32/Mumu.b.worm W32/MyDoom W32/Nachi.worm
W32/Netsky W32/Nimda W32/Pate
W32/Polybot W32/Sasser.worm W32/Sdbot.worm.gen
W32/SirCam@MM W32/Sober W32/Sobig
W32/SQLSlammer.worm W32/Swen@MM W32/Yaha@MM
W32/Zafi