Discovered: April 19, 2005
Updated: February 13, 2007 12:37:22 PM
Also Known As: Win32.Kelvir.L [Computer Assoc, IM-Worm.Win32.Kelvir.u [Kasper, W32/Kelvir.worm.ai [McAfee], Troj/Kelvir-M [Sophos], WORM_KELVIR.W [Trend Micro]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Kelvir.AC is a worm that spreads through MSN Messenger and drops a variant of
W32.Spybot.Worm.
Protection
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Initial Rapid Release version April 19, 2005
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Latest Rapid Release version July 26, 2008 revision 017
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Initial Daily Certified version April 19, 2005
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Latest Daily Certified version July 26, 2008 revision 018
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Initial Weekly Certified release date April 20, 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: More than 10
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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: Paul Mangan
