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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

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Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Sober.A
Technical name:W32/Sober.A.worm
Threat level:High
Alias:W32/Sober@mm, Win32.HLLM.Odin, Win32/Sober.A
Effects:  It does not have destructive effects. It spreads via e-mail.

Affected platforms:

Windows XP/2000/NT

Detection updated on:Dec. 18, 2003
Proactive protection:
Yes, using TruPrevent Technologies
Repair utility:Panda QuickRemover

Brief Description 


Sober.A is a worm without destructive effects that spreads via e-mail in a message written in English or German.

Sober.A creates two copies of itself that go memory resident and check if both are currently running. If one of the processes is ended or one of the files is deleted, the other creates it again.

Visible Symptoms 


Sober.A is easy to recognize once it has reached the computer, as it displays a fake error message on screen: