Discovered: June 1, 2007
Updated: June 1, 2007 9:58:39 AM
Also Known As: W32/IRCBot-WB [Sophos], W32/Checkout [McAfee]
Type: Worm
Infection Length: 479,232 bytes
Systems Affected: Windows 98, Windows 95, Windows XP, Windows Me, Windows NT, Windows Server 2003, Windows 2000
W32.Mubla is a worm that spreads through MSN Messenger and opens a back door on the compromised computer.
Protection
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Initial Rapid Release version June 1, 2007 revision 006
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Latest Rapid Release version October 1, 2009 revision 020
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Initial Daily Certified version June 1, 2007 revision 018
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Latest Daily Certified version October 1, 2009 revision 022
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Initial Weekly Certified release date June 6, 2007
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: Low
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Payload: Opens a back door on the compromised computer.
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Releases Confidential Info: May steal passwords.
Distribution
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Distribution Level: Medium
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Target of Infection: MSN Messenger
Writeup By: Liam O Murchu
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