The file BIFROST V1.2.1.EXE is malware related.
You must delete the file BIFROST V1.2.1.EXE immediately!
Delete the file BIFROST V1.2.1.EXE without delay!
Kill the process BIFROST V1.2.1.EXE and remove BIFROST V1.2.1.EXE from the Windows startup.

BIFROST V1.2.1.EXE Information and Removal:
BIFROST V1.2.1.EXE is known as: Backdoor.Bifrose [PCTools] Backdoor.Win32.Bifrose.cbtu [Kaspersky Lab] Generic.gm [McAfee] Mal/Bifrose-S , Mal/Bifrose-S [Sophos] Backdoor:Win32/Bifrose.gen!C [Microsoft] Backdoor.Win32.Bifrose [Ikarus] Win-Trojan/Bifrose.1396736.B [AhnLab].
MD5 of BIFROST V1.2.1.EXE = FE844E3A1B608ABBE2124E05CEEB3F08
BIFROST V1.2.1.EXE size is 1396736 bytes.
Full path on a computer: %WINDIR%\SYSTEM32SYSTEM32\BIFROST V1.2.1.EXE
Related Files:
C:\BIFROST V1.2.1.EXE
%APPDATA%\ADDONS.DAT
%PROGRAMFILES%\WIN\WIN.EXE
C:\PIBL.EXE
%PROGRAMFILES%\WIN\LOGG.DAT
%WINDIR%\SYSTEM32SYSTEM32\BIFROST V1.2.1.EXE
%WINDIR%\SYSTEM32SYSTEM32\INFODATOS.EXE