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The file COLTT21.EXE is malware related.
You must delete the file COLTT21.EXE immediately!
Delete the file COLTT21.EXE without delay!
Kill the process COLTT21.EXE and remove COLTT21.EXE from Windows startup.
COLTT21.EXE Information and Removal:
COLTT21.EXE is known as: Backdoor.IRC.B!rem [PCTools] Backdoor.IRC.Bot [Symantec] Net-Worm.Win32.Kolab.chu [Kaspersky Lab] Generic Dropper.hs [McAfee] Mal/Bifrose-Q [Sophos] Backdoor.IRCBot [Ikarus] Win-Trojan/Inject.6144.G [AhnLab].
MD5 of COLTT21.EXE = 8EDC2473648618F9B76A0FF4A8B94844
COLTT21.EXE size is 63994 bytes.
Full path on a computer: %WINDIR%\COLTT21\COLTT21.EXE
Related Files:
C:\BIFROST.EXE
%APPDATA%\ADDONS.DAT
%WINDIR%\COLTT21\COLTT21.EXE