W32.Sober.T@mm

W32.Sober.T@mm is a mass-mailing worm that uses its own SMTP engine to spread. It sends itself as an email attachment to addresses gathered from the compromised computer. The email may be in either English or German.

Protection

• Initial Rapid Release version November 15, 2005
• Latest Rapid Release version August 2, 2008 revision 020
• Initial Daily Certified version November 15, 2005
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date November 16, 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: More than 10
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: High