Discovered: April 23, 2005
Updated: February 13, 2007 12:37:43 PM
Also Known As: IM-Worm.Win32.Kelvir.an [Kaspe, W32/Kelvir.worm.gen [McAfee], W32/Kelvir-Gen [Sophos], WORM_KELVIR.AC [Trend Micro]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Kelvir.AL is a worm that spreads a variant of
Backdoor.Sdbot through MSN Messenger.
Protection
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Initial Rapid Release version April 23, 2005
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Latest Rapid Release version July 26, 2008 revision 017
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Initial Daily Certified version April 23, 2005
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Latest Daily Certified version July 26, 2008 revision 018
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Initial Weekly Certified release date April 27, 2005
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
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Wild Level: Low
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Number of Infections: 0 - 49
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Number of Sites: 0 - 2
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Geographical Distribution: Low
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Threat Containment: Easy
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Removal: Moderate
Damage
Distribution
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Distribution Level: Medium
Writeup By: Kaoru Hayashi
