W32.Bofra.C@mm

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

Notes:

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

Protection

• Initial Rapid Release version November 11, 2004
• Latest Rapid Release version March 3, 2008 revision 035
• Initial Daily Certified version November 11, 2004
• Latest Daily Certified version March 3, 2008 revision 037
• 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