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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Agoner.A

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

It modifies the Desktop and the Windows Explorer wallpaper changing it to an image selected by the creator of the worm. It uses several techniques in order to hide its presence and make its detection more difficult. It spreads through removable drives, like USB keys, making copies of itself in them.

Affected platforms:

Windows 2003/XP/2000/NT

First detected on:Feb. 3, 2010
Detection updated on:Feb. 15, 2010
StatisticsNo

Brief Description 

    

Agoner.A is a worm which modifies the Desktop and Windows Explorer wallpaper, changing it to another selected by the creator of the worm.

Additionally, it uses several techniques to make its detection more difficult, like to hide the extensions of the files and to prevent the hidden files from being viewed.

Agoner.A spreads through the removable drives of the system, making copies of itself in them. Additionally, it creates an AUTORUN.INF file in these drives, so that the copies of the worm are automatically run whenever any of them is accessed.

Visible Symptoms 

    

Agoner.A is easy to recognize, as it modifies the following items:

  • Desktop wallpaper; it changes to the following image:

    Desktop wallpaper established by Agoner.A
  • Windows Explorer wallpaper:

    Windows Explorer wallpaper established by Agoner.A