Discovered: September 10, 2007
Updated: September 10, 2007 5:54:42 PM
Also Known As: WORM_SKIPI.A [Trend], W32/Pykse.worm.b [McAfee], WORM_SKIPI.B [Trend], Skipi.A [Panda Software]
Type: Worm
Infection Length: 188,400 bytes - 188,600 bytes
Systems Affected: Windows 98, Windows 95, Windows XP, Windows Me, Windows Vista, Windows NT, Windows Server 2003, Windows 2000
W32.Pykspa.D is a worm that spreads through Skype Instant Messenger and removable drives. It also disables access to security-related Web sites by modifying the hosts file and ends processes which may be security-related.
Protection
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Initial Rapid Release version September 10, 2007 revision 008
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Latest Rapid Release version December 28, 2009 revision 019
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Initial Daily Certified version September 10, 2007 revision 017
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Latest Daily Certified version December 28, 2009 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: Low
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Modifies Files: Modifies the hosts file to prevent access to certain security-related Web sites.
Distribution
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Distribution Level: Low
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Target of Infection: Skype Instant Messenger.
Writeup By: Sean Kiernan
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