McAfee AVERT Stinger is a utility for detecting and eliminating the most dangerous viruses. It is not a complete protection against viruses, so you should not substitute your normal anti-virus with it, but you should use it along side, because it eliminates the most dangerous and difficult viruses, making it very useful. Some of the viruses it eliminates are:
BackDoor-AQJ, Bat/Mumu.worm, Exploit-DcomRpc,
IPCScan, IRC/Flood.ap, IRC/Flood.bi,
IRC/Flood.cd, NTServiceLoader, PWS-Sincom,
W32/Bugbear@MM, W32/Deborm.worm.gen, W32/Dumaru@MM,
W32/Elkern.cav, W32/Fizzer.gen@MM, W32/FunLove,
W32/Klez, W32/Lirva, W32/Lovgate,
W32/Lovsan.worm, W32/Mimail@MM, W32/MoFei.worm,
W32/Mumu.b.worm, W32/Nachi.worm, W32/Nimda,
W32/Sdbot.worm.gen, W32/SirCam@MM, W32/Sobig,
W32/SQLSlammer.worm, W32/Yaha@MM...
Remember it is not a tool to use as a permanent anti-virus, but it is very useful to eliminate the most dangerous.