Discovered: September 12, 2007
Updated: September 13, 2007 7:44:58 AM
Also Known As: W32.Pixror [Symantec]
Type: Worm
Infection Length: 24,576 bytes
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Vista, Windows XP
W32.Neeris.B is a worm that spreads through MSN instant messaging applications. It also opens a back door on the compromised computer.
Protection
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Initial Rapid Release version September 12, 2007 revision 050
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Latest Rapid Release version April 6, 2009 revision 051
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Initial Daily Certified version September 13, 2007 revision 003
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Latest Daily Certified version September 12, 2007 revision 050
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Initial Weekly Certified release date September 19, 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: Opens a back door on the compromised computer.
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Compromises Security Settings: Attempts to bypass the Windows Firewall.
Distribution
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Distribution Level: Medium
Writeup By: Asuka Yamamoto
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