W32.Multex.B

W32.Multex.B is a worm that attempts to exploit the Microsoft Windows LSASS Buffer Overrun Vulnerability (described in Microsoft Security Bulletin MS04-011). It also attempts to propagate through the Kazaa file-sharing network.

Note: Virus definitions dated September 13th, 2004 or earlier may detect this threat as W32.Sykel.

Protection

• Initial Rapid Release version September 11, 2004
• Latest Rapid Release version July 26, 2008 revision 017
• Initial Daily Certified version September 11, 2004
• Latest Daily Certified version July 26, 2008 revision 018
• Initial Weekly Certified release date September 15, 2004

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

• Wild Level: Low
• Number of Infections: 0 - 49
• Number of Sites: 0 - 2
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Easy

Damage

• Damage Level: Low

Distribution

• Distribution Level: Low