I came home from vacation and got on yahoo. Not much else actually. Computer was a bit slow and sounded like it was downloading so I ran Spybot and found regestry keys and fixed them. Rebooted and ran it again with the same registry key issue. Something about windows security.
I ran msconfig and noticed a hh.exe that isn't usually there and did some research on it. Seems legit, but I unchecked it and rebooted. Checked it again and it was back. I repeated the process. When it came back I had the CBT-Locker on my desktop with a countdown timer saying ti had locked my files unless I pay the ransom.
Being a bit illeterate on computers my search on fixing it is a bit daunting since I don't understand what it was talking about. I did download malwarebytes and run a scan fixing a number of issues. Ran it again and it was fine. Files are still locked of course and the desktop still shows the CBT-Locker background.
That is all I have done to this point. I came here for help right away.
Update: I changed my background, but it still shows up when I log off the computer for just a moment. I also downloaded and removed spyhunter. I could not afford to pay to have it remove the rootkit and other things it found.
I am running XP