Troj/Agent-IJJ is a Trojan for the Windows platform.
When first run Troj/Agent-IJJ copies itself to <Windows>\msauc.exe and creates the file <System>\shell31.dll. This is a text file and can be safely deleted.
The following registry entry is created to run msauc.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
lsass driver
<Windows>\msauc.exe