Discovered: May 21, 2005
Updated: May 21, 2005 7:59:07 AM
Also Known As: W32/Poebot-KF [Sophos], W32/Poebot-KO [Sophos], W32/Poebot-LR [Sophos], W32/Poebot-LQ [Sophos], W32/Poebot-MR [Sophos], W32/Poebot-MS [Sophos], W32/Poebot-MV [Sophos]
Type: Worm
Infection Length: 90,624 bytes
Systems Affected: Windows 98, Windows 95, Windows XP, Windows Me, Windows NT, Windows 2000
W32.Linkbot.M is a worm that exploits the Microsoft Windows LSASS Buffer Overrun Vulnerability (BID 10108) in order to propagate. It also creates a back door on the compromised computer.
Protection
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Initial Rapid Release version May 21, 2005
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Latest Rapid Release version May 16, 2008 revision 020
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Initial Daily Certified version May 21, 2005
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Latest Daily Certified version May 16, 2008 revision 019
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Initial Weekly Certified release date May 24, 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: Easy
Damage
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Damage Level: Medium
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Payload: Opens a back door on the compromised computer.
Distribution
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Distribution Level: Medium
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Ports: Connects on TCP port 6667 and 10324. Listens on TCP port 113.
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Target of Infection: Computers vulnerable to remotely exploitable vulnerabilities.
Writeup By: Hiroshi Shinotsuka
