W32.Virut.U

W32.Virut.U is a virus that infects .exe and .scr files on the compromised computer. It also opens a back door and may download potentially malicious files on to the compromised computer.

Protection

• Initial Rapid Release version September 4, 2007 revision 053
• Latest Rapid Release version December 16, 2009 revision 007
• Initial Daily Certified version September 5, 2007 revision 002
• Latest Daily Certified version December 10, 2009 revision 041
• Initial Weekly Certified release date September 12, 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: Moderate
• Removal: Moderate

Damage

• Damage Level: Medium
• Payload: Opens a back door on the compromised computer.
• Modifies Files: Infects .exe and .scr files.

Distribution

• Distribution Level: Low