Apparently, it's a trojan.
Firstly, boot your computer to the Safe Mode menu screen. You do this by repeatedly pressing F8 as soon as you boot up. Once there, use the arrow keys to highlight Safe Mode with Networking. Continue to boot from there, by pressing Enter. You will now see some drivers being loaded. There will be a pause at some point. This usually lasts for no more than 30 seconds.
If that’s successful, open your browser, copy and paste this link into the address bar and press Enter. It's a direct download for RKill. Save it to your desktop, then run it. It takes just a minute to run. As it's running, any remaining desktop icons will vanish for a few seconds. When the notepad report is displayed, just close it.
RKill SHOULD HAVE STOPPED THE INFECTION(S) FROM RUNNING, BUT IT WON'T HAVE REMOVED IT / THEM.
Now open your browser and copy and paste this link into the address bar, and press Enter. It's a direct download for the free version of Malwarebytes' Anti-Malware (MBAM). Install it, get updates and run a full scan (still in Safe Mode):
You should now delete RKill, as updated versions are often made available. Malwarebytes’ Anti-Malware is easy to uninstall, but it may prove to be beneficial in the future.
After this, try rebooting normally. If that's successful, I recommend you run another full scan with MBAM. It will detect malware that wasn't running in Safe Mode.
Hope this helps.