Crono sent me this program, avb.exe or something simmulair, he said it was a movie about all your bases belong to us or something.
He had to try sending it sevral times before it would actually send (this was via msn messenger)
The file was over 2,000 kb and less than 3,000 kb if I remember correctly. I opened the file straight after he sent it, forgetting to virus scan it first.
Then I closed it and maxamized my virus scanner, I scanned the program and it said no viruses found. Then my virus scanner closed without me doing anything. After, I checked my firewall log and less than a minute after I opened it, it closed the window.

I scanned my computer for viruses (via a windows os) and it said none found, then I tried it in safe mode and still none found, I enabled it so it would scan even regulair files, still none found.

I got an error when I rebooted saying something about something I forget what trying to write to system.ini if I remember rightly. It was a dos warning. It had the choices stop, continue and exclude. I pressed s for stop and it booted into windows, still the problem persisted, then I tried exclude, still the problem persisted.
I restarted again and I didnt get the warning again, but I still have the problem, and the internet is going slower than usual.

I have also seen some suspicious hostnames in my firewall log.

Got any ideas how to fix this or something? Help much appreciated!