W32.Aizu

W32.Aizu is a worm that attempts to exploit the Microsoft Windows Local Security Authority Service Remote Buffer Overflow (described in Microsoft Security Bulletin MS04-011) using TCP port 445. This worm propagates by scanning randomly selected IP addresses for vulnerable systems.

Protection

• Initial Rapid Release version September 11, 2004
• Latest Rapid Release version July 26, 2008 revision 017
• Initial Daily Certified version September 11, 2004
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date September 12, 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: Low

Distribution

• Distribution Level: Medium