W32.Bofra.B@mm

W32.Bofra.B@mm is a mass-mailing worm that exploits Microsoft Internet Explorer Malformed IFRAME Remote Buffer Overflow Vulnerability (Microsoft Security Bulletin MS04-040). It spreads by sending a link via email to the addresses that it finds on an infected computer.

Notes:

• Virus definitions dated November 16, 2004 or earlier may detect this threat as W32.Mydoom.AJ@mm.
• Rapid Release definitions 11/16/2004 rev. 50 with sequence number 38482 or later will detect this threat as W32.Bofra.B@mm.

Protection

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

Distribution

• Distribution Level: High