Discovered: April 12, 2005
Updated: February 13, 2007 12:36:53 PM
Also Known As: IM-Worm.Win32.Kelvir.q [Kasper, W32/Kelvir.worm.gen [McAfee], W32/Kelvir-Q [Sophos], WORM_KELVIR.AE [Trend Micro]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Kelvir.R is a worm that spreads through MSN Messenger and drops a variant of
W32.Spybot.Worm.
It also spreads by exploiting the Microsoft Windows DCOM RPC Interface Buffer Overrun Vulnerability (described in
Microsoft Security Bulletin MS03-026), the Microsoft Windows Local Security Authority Service Remote Buffer Overflow (as described in
Microsoft Security Bulletin MS04-011), and the vulnerabilities in the Microsoft SQL Server 2000 or MSDE 2000 audit (as described in
Microsoft Security Bulletin MS02-061) using UDP port 1434.
Protection
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Initial Rapid Release version April 13, 2005
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Latest Rapid Release version July 26, 2008 revision 017
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Initial Daily Certified version April 13, 2005
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Latest Daily Certified version July 26, 2008 revision 018
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Initial Weekly Certified release date April 13, 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: Hyun Choi
