W32.Motsys

W32.Motsys is a worm that spreads by copying itself to removable drives. It also adds an <iframe> tag to certain files on the compromised computer.

Protection

• Initial Rapid Release version November 14, 2007 revision 034
• Latest Rapid Release version December 6, 2007 revision 004
• Initial Daily Certified version November 14, 2007 revision 037
• Latest Daily Certified version December 18, 2007 revision 039
• Initial Weekly Certified release date November 14, 2007

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: Low
• Modifies Files: Adds an iframe to certain files.

Distribution

• Distribution Level: Low
• Target of Infection: Copies itself to removable drives.