I too am having difficulty removing this " Defense Center " trojan even using a combination of Mcafee, Microsoft Malicious Software Removal Tool and Stinger. I'd like to know why I pay Mcafee $60.00 a year for 3 computers to be protected yet I'm constantly having to Fdisk harddrives for going to innocent websites that McAfee has green marked as safe. This time I was looking up information on the Big12 college football penalty money in news articles and got this current one. This is rediculous, I never had this sort of trouble when I was with Norton and having to pay Mcafee $90 for something their software is supposed to protect me from is highway robbery.
This will be the last dime I give to Mcafee, I'm headed back to Norton when my membership expires.
Disgruntled and Ripped-off consumer.
Edit: Solved! http://www.bleepingcomputer.com/download/anti-virus/malwarebytes-anti-malware provides a program that removes Defense Center.
By the way, I'm switching to Avast. Bye-bye!