I was recently informed by our IT department that my work laptop had a Virantix Trojan on it. The IT work Ticket also referred to a virus name of Trojan.Fakeavalert. They successfully removed it / them.
How do I determine it's origin? What do I need to do to find out if it came from my home computer or one of my USB drives? And, of course, if I do find it how do I get rid of the sucker permanently?
I have Symantec's Internet Security program running in the background whenever my home computer is on, but the internet connection is a wireless network connection. The computer is only on when someone is actually using it - it does not stay on 24 /7.
Thank you for any education you can give me about this.