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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Ruledor.A

 
Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Ruledor.A
Technical name:Bck/Ruledor.A
Threat level:Low
Alias:Backdoor.Ruledor.B
Type:Trojan
Subtype: Backdoor
Effects:  It adds a toolbar to the Internet Explorer, displays advertisements and redirects the browser to advertised websites.

Affected platforms:

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

First detected on:Oct. 1, 2003
Detection updated on:Oct. 20, 2003
StatisticsNo

Brief Description 

    

Ruledor.A is a backdoor that is installed by several variants of the Trojan Istbar.

Ruledor.A adds a toolbar to the Internet Explorer browser, displays advertising pop-up windows and could end the Internet Explorer due to programming errors.

In addition, when the user types a web address in the Internet Explorer, Ruledor.A checks if there is something similar among its advertisements. If so, it redirects the user to that advertised website.

Visible Symptoms 

    

Ruledor.A is easy to recognize, as it shows the following symptoms:

  • It adds a toolbar to the Internet Explorer browser.
  • It displays advertising pop-up windows.
  • It could produce errors and end the process of the Internet Explorer.
  • When the user types a web address in the Internet Explorer, Ruledor.A checks if there is something similar among its advertisements. If so, it redirects the user to that website.