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QQHelper.Z - Trojan
Threat Level I
Damage II
Distribution I
Common name: QQHelper.Z
Technical name: Trj/QQHelper.Z
Threat level: Medium
Type: Trojan
Effects: It uses several rootkits in order to make its detection more difficult, as it hides the files processes and registry entries belonging to the Trojan. It addds a link to a Chinese website in the section Favorites of Internet Explorer. It does not spread automatically by its own means.
Affected platforms: Windows 2003/XP/2000/NT/ME/98/95
First detected on: March 31, 2008
Detection updated on: April 2, 2008
Statistics No
Brief Description
QQHelper.Z is a Trojan which downloads two rootkits in the affected computer. These rootkits make the presence of the Trojan more difficult, as they hide the files, processes and registry entries belonging to it.
Additionally, it adds a link to a Chinese website in the section Favorites of Internet Explorer.
QQHelper.Z does not spread automatically by its own means. It needs an attacking user's intervention in order to reach the affected computer.
Visible Symptoms
QQHelper.Z is difficult to recognize, as it does not display any messages or warnings that indicate it has reached the computer.
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