W32.Korgo.I

W32.Korgo.I is a variant of W32.Korgo.G. This worm attempts to propagate by exploiting the Microsoft Windows LSASS Buffer Overrun Vulnerability (BID 10108), described in Microsoft Security Bulletin MS04-011. It uses TCP port 445 to do this.

W32.Korgo.I listens on TCP ports 113, 3067, and a random port (256-8191).


Notes:

• Certified virus definitions, version 06/07/04 rev 49 (20040607.049) and greater are required to detect this threat.
• Definitions dated prior to June 29, 2004 detect this threat as W32.Korgo.H.
• Symantec Security Response has developed a removal tool to clean the infections of W32.Korgo.I.

Protection

• Initial Rapid Release version June 7, 2004
• Latest Rapid Release version July 19, 2008 revision 019
• Initial Daily Certified version June 7, 2004
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date June 7, 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: 3 - 9
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Medium