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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Sheer

 
Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Sheer
Technical name:W32/Sheer.A@mm
Threat level:Low
Alias:ZOHER.A; ZOHER; W32/Sheer.A@mm; W32.Zoher@mm.html; Sheer; I-worm.Zoher; Scherzo
Type:Worm
Effects:  It downloads a text file from the Internet.

Affected platforms:

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

First detected on:
Detection updated on:June 4, 2003
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Sheer is a worm that spreads via e-mail in a message with an attached file called: JAVASCRIPT.EXE.

Sheer exploits a vulnerability in Outlook to infect other computers. A computer will be infected when the attachment is opened or when the message carrying the worm is viewed through the Preview Pane.

Once it has carried out its infection, Sheer sends itself out to all the contacts in Outlook’s Address Book.

Sheer does not cause any damage in affected computers, as the only action it carries out is to download a text file from the Internet.

Visible Symptoms 

    

Sheer is easy to recognize, as it reaches computers in an e-mail message with an attached file called: JAVASCRIPT.EXE.