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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

DNSChanger.ALZ

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:DNSChanger.ALZ
Technical name:Trj/DNSChanger.ALZ
Threat level:Medium
Type:Trojan
Effects:  

It modifies the domain name system( DNS) in order to redirect users to a false website, from which malware can be downloaded to the computer. It does not spread automatically using its own means.

Affected platforms:

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

First detected on:Sept. 7, 2010
Detection updated on:Sept. 10, 2010
StatisticsNo

Brief Description 

    

DNSChanger.ALZ is a Trojan designed to modify the domain name system (DNS) to redirect users to false websites.

This way, when users access certain websites, they are redirected to a false website, designed with malicious intentions, like for example to download more malware to the computer. The malware hosted in this website can be of any type.

Additionally, it drops a rootkit to the computer, which allows it to hide the presence of the Trojan in rhe computer, making its detection more difficult.

DNSChanger.ALZ does not spread auotmatically using its own means. It needs an attacking user's intervention in order to reach the affected computer.

Visible Symptoms 

    

DNSChanger.ALZ is difficult to recognize, as it does not display any messages and warnings that indicate it has reached the computer.