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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Haxdoor.AS

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Haxdoor.AS
Technical name:Rootkit/Haxdoor.AS
Threat level:Medium
Type:Hacking Tool
Effects:   It allows to carry out dangerous actions for the victims of attacks.
Affected platforms:

Windows 2003/XP/2000/NT/ME/CE

First detected on:Oct. 25, 2006
Detection updated on:Oct. 25, 2006
StatisticsNo

Brief Description 

    

Haxdoor.AS is a rootkit. These are programs used to hide files, Windows Registry entries or processes, either their own or those of other programs.

In this way, even when a user looks for these items on a computer, they won't be able to see them.

Rootkits have been widely used for malicious ends, to camouflage other programs on computers that have previously been compromised through other means.

There are certain examples of malware that use rootkits in order to go unnoticed on the computer they have infected.

 

It reduces the security level of the computer: it terminates processes belonging to security tools, such as antivirus programs and firewalls, leaving the computer defenseless against attacks from other malware; it changes system permissions, decreasing the security level.

 

It uses stealth techniques to avoid being detected by the user:

  • It uses techniques included in its code to hide itself while it is active.
  • It terminates processes corresponding to several security tools, such as antivirus programs and firewalls, to prevent detection.
  • It injects itself in running processes.

 

Haxdoor.AS uses the following propagation or distribution methods:

  • Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
  • Via Internet, exploiting remote vulnerabilities: attacking random IP addresses, in which it tries to insert a copy of itself by exploiting one or more vulnerabilities.
  • It is dropped or downloaded to the computer by other malware specimens, for example: Haxdoor.NQ.