MyDoom.BC appeared on February 18th, 2005. It is a minor variant of MyDoom.BB. MyDoom.BC adds a few new sites from which the worm attempts to download the additional Backdoor (Backdoor.Win32.Surila.o). Mydoom.BB
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.