Discovered: September 11, 2007
Updated: September 11, 2007 3:06:52 PM
Type: Worm
Infection Length: 244,590 bytes
Systems Affected: Windows 98, Windows XP, Windows Me, Windows Vista, Windows NT, Windows Server 2003, Windows 2000
W32.Imaut.AY is a worm that spreads through Yahoo! Instant Messenger and by copying itself to network shares.
Protection
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Initial Rapid Release version September 11, 2007 revision 009
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Latest Rapid Release version January 28, 2010 revision 007
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Initial Daily Certified version September 11, 2007 revision 016
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Latest Daily Certified version January 28, 2010 revision 025
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Initial Weekly Certified release date September 12, 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: Medium
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Payload: Downloads potentially malicious files on to the compromised computer.
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Compromises Security Settings: Lowers security settings.
Distribution
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Distribution Level: Low
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Shared Drives: Spreads through network shares
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Target of Infection: Yahoo! Instant Messenger
Writeup By: Stephen Doherty
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