Troj/Murbac-A is a backdoor Trojan which allows a remote intruder to gain access and control over the computer.
When first run Troj/Murbac-A copies itself to <System>\1u7.exe.
Troj/Murbac-A may attempt to create a registry entry in the following location in order to automatically run the Trojan upon startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run