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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Appix.B

 
Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Appix.B
Technical name:W32/Appix.B
Threat level:Low
Alias:I-Worm.Apbost
Type:Worm
Effects:  It terminates certain processes, most of which belong to antivirus programs.

Affected platforms:

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

Detection updated on:Oct. 16, 2002
StatisticsNo

Brief Description 

    

Appix.B is a worm that arrives in an e-mail message with variable characteristics. However, the file attached to this message always has an EXE or SCR extension.

It is a dangerous worm as it terminates certain processes, most of which belong to antivirus programs.

Appix.B also exploits the MIME IFRAME vulnerability which allows malicious code in e-mail messages to be automatically run.  This flaw affects Internet Explorer (versions 5.01 and 5.5).  Microsoft has made a patch for this vulnerability available to users through its website.

Visible Symptoms 

    

This worm is difficult to recognize, as it arrives in an e-mail message with variable characteristics.