I had a malicious file which I installed on my PC it was under the name BFBC2 keygen and it was running under the task name of of explorer.exe or under bf2bc.exe and it would open every time I booted my machine and would not let me gain access to the internet as well as failing a few programs BitDefender 2011 could not kill this Virus
but I managed to kill it by using Security Task Manager 1.8 freeware version.
If you have any Ideas on this please do reply.
