Discovered: March 7, 2005
Updated: February 13, 2007 12:34:45 PM
Also Known As: IM-Worm.Win32.Kelvir.b [Kasper, W32/Kelvir.worm.c [McAfee], W32/Kelvir-C [Sophos], WORM_KELVIR.B [Trend Micro]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Kelvir.B is a worm that spreads through Windows Messenger and MSN Messenger and attempts to download and execute a variant of
W32.Spybot.Worm.
Protection
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Initial Rapid Release version March 7, 2005
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Latest Rapid Release version March 7, 2005
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Initial Daily Certified version March 7, 2005
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Latest Daily Certified version March 7, 2005
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Initial Weekly Certified release date March 7, 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: 50 - 999
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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: Ka Chun Leung
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