W32.Bobax.AF@mm

W32.Bobax.AF@mm is a mass-mailing worm that opens a back door, downloads remote files, and lowers security settings on the compromised computer. The worm spreads by exploiting the Microsoft Windows Plug and Play Buffer Overflow Vulnerability (as described in Microsoft Security Bulletin MS05-039) and by sending a copy of itself to email addresses gathered.

Protection

• Initial Rapid Release version August 15, 2005
• Latest Rapid Release version July 27, 2009 revision 085
• Initial Daily Certified version August 15, 2005
• Latest Daily Certified version July 27, 2009 revision 073
• Initial Weekly Certified release date August 15, 2005

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: Easy

Damage

• Damage Level: Medium

Distribution

• Distribution Level: High