Troj/AdClick-AC

Aliases	Trojan-Clicker.Win32.Agent.ac
Category	Viruses and Spyware
Type	Trojan
What to do	If you've received an alert for a virus or spyware, then follow the instructions for removing the threat.
Prevalence	low high

Summary


Affected operating systems	Windows
Characteristics	Installs itself in the registry
Protection available since	18 November 2004 08:50:22 (GMT)
Detected by	All Sophos products

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Troj/AdClick-AC is a popup and downloader Trojan for the Windows platform.

Periodically, Troj/AdClick-AC will create popup adverts using Internet Explorer.

The Trojan may also attempt to download updates of itself.

Troj/AdClick-AC installs itself as a Browser Help Object (BHO).

In order to run automatically, Troj/AdClick-AC will set the following registry entries:

HKCR\CLSID\(54645654-2225-4455-44A1-9F4543D34545)
(Default)
System Check Application

HKCR\CLSID\(54645654-2225-4455-44A1-9F4543D34545)\InProcServer32
(Default)
<path to Trojan DLL>

HKLM\SOFTWARE\Microsoft\Windows\
CurrentVersion\ShellServiceObjectDelayLoad
SystemCheck2
(54645654-2225-4455-44A1-9F4543D34545)

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