Troj/BlackHol-C is a backdoor Trojan for the Windows platform.
Troj/BlackHol-C includes functionality to access the internet and communicate with a remote server via HTTP.
When first run Troj/BlackHol-C copies itself to <System>\qq.exe and creates the following files:
<System>\KeySpy.dll
<System>\qq.cfg
The file QQ.exe is registered as a new system driver service named "Black Hole2005 Professional", with a display name of "Black Hole2005 Professional Version" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\Black Hole2005 Professional\