W32.Simic.Worm (discovered July 30, 2003) is a worm that spreads itself using MSN Messenger.

Also Known As: I-Worm.Sinmsn [KAV]
Type: Worm
Infection Length: multiple files
Systems Affected: Windows 95, Windows 98, Windows NT, Windows 2000, Windows XP, Windows Me
Systems Not Affected: Windows 3.x, Macintosh, OS/2, UNIX, Linux

THREAT ASSESSMENT
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Wild:

Number of infections: 0 - 49
Number of sites: 0 - 2
Geographical distribution: Low
Threat containment: Easy
Removal: Easy

For more info visit
http://securityresponse.symantec.com...imic.worm.html