W32.Mydoom.R@mm

W32.Mydoom.R@mm is a mass-mailing worm that uses its own SMTP engine to send itself to the email addresses that it finds on an infected computer. The email contains a spoofed From address. The subject and message body vary, and the attachment has a .bat, .cmd, .exe, .pif, .scr, or .zip extension.

This threat is packed using UPX.

Protection

• Initial Rapid Release version September 4, 2004
• Latest Rapid Release version August 20, 2008 revision 017
• Initial Daily Certified version September 4, 2004
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date September 8, 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