Malwarebytes failed, kept being shut down half way through the scan, then I loaded Microsoft Security Essentials and it caught it straight away.
Thanks to Power for that recommendation in another thread.
Edit: Uninstalled and reinstalled Malwarebytes, it has now picked up lots of baaad stuff.
You just need to wipe down your keyboard and monitor from all the bodily fluids and your PC will now be squeaky clean
