Discovered: August 4, 2005
Updated: February 13, 2007 12:43:05 PM
Also Known As: Backdoor.Win32.Landis.b [Kaspe, BKDR_LANDIS.A [Trend Micro], W32/Chode-G [Sophos], Win32.Nochod.{D, J, Q, V} [Computer Associates], WORM_CHOD.D [Trend Micro]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Chod.D is a worm with back door capabilities that spreads via MSN Messenger. The worm also lowers security settings and blocks access to several Web sites.
Protection
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Initial Rapid Release version August 4, 2005
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Latest Rapid Release version August 20, 2008 revision 017
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Initial Daily Certified version August 4, 2005
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Latest Daily Certified version August 20, 2008 revision 016
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Initial Weekly Certified release date August 9, 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: Costin Ionescu
