Troj/Agent-HNN is a Trojan for the Windows platform.
When first run Troj/Agent-HNN copies itself to the Windows system folder.
Troj/Agent-HNN is registered as a new system driver service named "AudioSrvs", with a display name of "Windows Audio Service" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\AudioSrvs