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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Grade.A

 
Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Grade.A
Technical name:W32/Grade.A
Threat level:Medium
Type:Worm
Effects:  It deletes the files the computer needs in order to work correctly.

Affected platforms:

Windows ME/98/95

First detected on:July 2, 2002
Detection updated on:March 16, 2005
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies
Country of origin:CHILE

Brief Description 

    

Grade.A is considered a dangerous worm, as it deletes files needed for the correct functioning of the computer.

Grade.A spreads via e-mail in a message with variable characteristics.

Once Grade.A has affetced the computer, it sends itself out to all the contacts in Outlook's Address Book.

Visible Symptoms 

    

Grade.A is easy to recognize once it has affected the computer, as it displays the following error message: