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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Perwall.A

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Perwall.A
Technical name:W32/Perwall.A.worm
Threat level:Medium
Type:Worm
Effects:  

It many copies of itself in several directories of the affected computer. It spreads through removable, shared and mapped drives.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:May 12, 2008
Detection updated on:Nov. 29, 2009
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Perwall.A is a worm that makes many copies of itself in different directories of the affected computer and an AUTORUN.INF file so that whenever of any of these directories is accessed, the worm is run.

Additionally, it is also run whenevera file with a REG (Windows Registry file) or MSC (Microsoft Management Console file) extensión is run.

Perwall.A spreads through removable, mapped and shared drives.

Visible Symptoms 

    

Perwall.A is easy to recognize once it has affected the computer, as when it is run, it opens the folder C:\windows\web\wallpaper, where the wallpaper images are located.

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