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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

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Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Sober.F
Technical name:W32/Sober.F.worm
Threat level:Medium
Effects:  It does not have any destructive effects. It spreads via e-mail.

Affected platforms:

Windows XP/2000/NT/ME/98/95

Detection updated on:April 4, 2004
Proactive protection:
Yes, using TruPrevent Technologies
Repair utility:Panda QuickRemover

Brief Description 


Sober.F is a worm without destructive effects that spreads via e-mail in a message written in English or in German, depending on the mail domain extension of the user's address.

Sober.F searches for e-mail addresses in files with several especific extensions, and then sends itself out to all the addresses it has gathered, using its own SMTP engine.

Visible Symptoms 


Sober.F is difficult to recognize, as it does not show any messages or warnings that indicate it has reached the computer.