W32.Sober.Q@mm

W32.Sober.Q@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.

It has been reported that it may arrive as one of the following files and that inside the ZIP archive is a file named PW_Klass.Pic.packed-bitmap.exe:

• KlassenFoto.zip
• pword_change.zip

Protection

• Initial Rapid Release version October 5, 2005
• Latest Rapid Release version August 20, 2008 revision 017
• Initial Daily Certified version October 5, 2005
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date October 5, 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: 0 - 2
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Easy

Damage

• Damage Level: Medium

Distribution

• Distribution Level: High