Troj/Feutel-AM is a backdoor Trojan for the Windows platform.
Troj/Feutel-AM includes functionality to access the internet and communicate with a remote server via HTTP.
When first run Troj/Feutel-AM copies itself to <Windows>\mm.exe.
The file mm.exe is registered as a new system driver service named "GrayPigeonServer", with a display name of "Gray_Pigeon_Server" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\GrayPigeonServer\