W32.Sober.O@mm

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

Note: Customers running the lastest versions of Norton Internet Security, Norton AntiVirus, or Symantec AntiVirus Corporate Edition can make use of the product's automated removal functionality to remove this risk.

Antivirus Protection Dates

• Initial Rapid Release version May 2, 2005
• Latest Rapid Release version June 16, 2010 revision 002
• Initial Daily Certified version May 2, 2005
• Latest Daily Certified version June 16, 2010 revision 004
• Initial Weekly Certified release date May 2, 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: More than 1000
• Number of Sites: More than 10
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: High