W32.Korgo.A

W32.Korgo.A is a worm that attempts to exploit the Microsoft LSASS Windows vulnerability, 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.

Note: Virus definitions dated prior to May 23, 2004 detect this threat as Bloodhound.Packed.

Protection

• Initial Rapid Release version May 23, 2004
• Latest Rapid Release version March 3, 2008 revision 035
• Initial Daily Certified version May 23, 2004
• Latest Daily Certified version March 3, 2008 revision 037
• 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: 50 - 999
• Number of Sites: 3 - 9
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Medium