Has anyone heard of a trojan horse called SHeur.BEXP or BEXO? AVG found and deleted it on my wifes puter but I have found nothing about it on the web. I found some that started with SHeur but a different suffix.

 

The trojans morph into many different names.
Be glad that you're running AVG...You could have ended up with multiple different infected files. If it comes back you may want to turn off system restore, run the virus scan and then turn it back on.
They often get saved into a restore point and the antivirus can't get it out of there.

 

This trojan does morph as it works it way through your system as Ron says.

BugHunter is familiar with some variants of it. Turning system restore off and running BugHunter in safe mode should
clear this up for you.

 

Look up a fix called Smit Fraud Fix this is what I have found to work on everyones computer that I have seen it on. Follow the instructions. It worked for me.