Obviously try removing it with anti virus but I noticed the above link does contain a klez removal tool although it is some years old... Perhaps worth trying if all else fails?
Thanks, I've deleted the entire folder that had about 100 or so sub-folders with very small extension-less files within. The exe file itself had a dodgy looking icon, I'm wondering how it got in my computer. Strange how antivir and malwarebytes didn't recognize it as a threat. Also the websites above look useful. Cheers
Nothing like that, no. Malwarebytes got rid of it although I can simply delete the file. I need something to prevent it coming back. I'll give adcleaner a go. Cheers.