I had a friend this week who called to say he had been infected by a Trojan on his home PC. His BT security solution did not seem to have stopped it occurring. I downloaded for him from www.malwarebytes.co.uk their free anti spyware/removal tool and it was really good going through all his pc and removed all the registry infections and trojans.
I also recommended he kept cleaning down through Internet Options his temporary internet files etc.
