I got a call from my aunty and she says she is having problems with her computer. When she logs in on it says Backdoor Trojan and she can't do anything. She is running Norton AntiVirus and it was updated today(although is it possible that the trojan is stopping it from being updated). She runs the scanner and it doesn't pick anything up.
Sorry, for the lack of information, but thats all I could get out of her.