W32.Mytob.BM@mm

W32.Mytob.BM@mm is a mass-mailing worm with back door functionality that uses its own SMTP engine to send an email to addresses that it gathers from the compromised computer. The worm spreads through network shares protected by weak passwords.

Protection

• Initial Rapid Release version April 25, 2005
• Latest Rapid Release version December 17, 2008 revision 034
• Initial Daily Certified version April 25, 2005
• Latest Daily Certified version December 17, 2008 revision 050
• Initial Weekly Certified release date April 27, 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: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: High