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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Mydoom.AD

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Mydoom.AD
Technical name:W32/Mydoom.AD.worm
Threat level:Low
Type:Worm
Effects:  

It prevents users from accessing websites belonging to antivirus companies, and downloads another worm from a certain website.

Affected platforms:

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

First detected on:Oct. 18, 2004
Detection updated on:Oct. 18, 2004
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Mydoom.AD is a worm that modifies the HOSTS file, in order to prevent the user from accessing several antivirus companies.

Additionally, Mydoom.AD attempts to download another worm, detected by Panda Security as W32/Scranor.A.worm, from a certain website.

Visible Symptoms 

    

Mydoom.AD is difficult to recognize, as it does not display any messages or warnings that indicate it has reached the computer.