W32.Sober@mm is a worm that spreads by mass-mailing itself with its own SMTP engine created on the victims computer.

Other Alias: W32/Sober@MM, I-Worm.Sober , W32/Sober-A, WORM_SOBER.A , Win32.Sober.A

Threat Level: Low

Systems Affected: Windows - All

Source: Symantec