W32.Korgo.X

W32.Korgo.X is a worm that attempts to spread by exploiting the Microsoft Windows LSASS Buffer Overrun Vulnerability (described in Microsoft Security Bulletin MS04-011) on TCP port 445.

This variant also attempts to download and execute a file from a remote Web site.

Virus Definitions prior to August 18, 2004 detect some samples of W32.Korgo.X as W32.Korgo.AD

Protection

• Initial Rapid Release version July 9, 2004
• Latest Rapid Release version July 19, 2008 revision 019
• Initial Daily Certified version July 9, 2004
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date July 13, 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: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Medium