W32.Nugache.A@mm

W32.Nugache.A@mm is a worm that propagates through email, network shares, and instant messages. It also opens a backdoor on the compromised computer.

Protection

• Initial Rapid Release version April 30, 2006
• Latest Rapid Release version October 29, 2009 revision 053
• Initial Daily Certified version April 30, 2006
• Latest Daily Certified version October 30, 2009 revision 002
• Initial Weekly Certified release date May 3, 2006

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: Medium

Distribution

• Distribution Level: High