W32.Korgo.B

W32.Korgo.B is a worm that propagates by exploiting the LSASS vulnerability on TCP port 445 (as described in Microsoft Security Bulletin MS04-011). The worm also listens on TCP ports 113, 2041, and 3067, and allows unauthorized access to the infected computer.

W32.Korgo.B is compressed with UPX compressor.

Protection

• Initial Rapid Release version May 24, 2004
• Latest Rapid Release version July 19, 2008 revision 019
• Initial Daily Certified version May 24, 2004
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date May 26, 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: Medium

Distribution

• Distribution Level: Medium