Troj/Bifrose-VL is a Trojan for the Windows platform.
When Troj/Bifrose-VL is installed, the Trojan copies itself to:
<System>\system\system.exe
and creates the following file to store the logged information:
<System>\system\klog.dat
This file is not malicious and may be deleted.
Registry entries may be created under:
HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\
{9B71D88C-C598-4935-C5D1-43AA4DB90836}
HKLM\SOFTWARE\Bifrost
HKCU\Software\Bifrost