W32.Gaobot.AQS

W32.Gaobot.AQS is a worm that spreads through open network shares and several Windows vulnerabilities including:

• The DCOM RPC Vulnerability (described in Microsoft Security Bulletin MS03-026) using TCP port 135.
• The WebDav Vulnerability (described in Microsoft Security Bulletin MS03-007) using TCP port 80.
• Exploits the Microsoft Windows Local Security Authority Service Remote Buffer Overflow (described in Microsoft Security Bulletin MS04-011).

W32.Gaobot.AQS can act as a backdoor server program and attack other systems. It attempts to stop the processes of many antivirus and security programs.

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: 0 - 2
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: Medium