Well, I don’t have a experience with it, but I may know how to remove it.

Have you tried searching into your temporary files? (Start > Run > %temp%)

Try rebooting in safe mode and deleting all of your temporary files, or go on the internet and download MalwareBytes Anti-Malware. Helps a lot.
Try using Temp Files Cleaner to clean temp files faster.
Also try Advanced SystemCare and make a full system scan with Avast!.
CCleaner helps a lot too.

Download Advanced SystemCare: http://www.iobit.com/advancedsystemcareper.php
Download MalwareBytes Anti-Malware: http://www.malwarebytes.org/products/malwarebytes_pro/
Download Temp File Cleaner: http://www.softpedia.com/get/Security/Secure-cleaning/Temp-File-Cleaner.shtml
Download CCleaner: http://www.piriform.com/ccleaner

Here’s a website in case you tried the suggestions above and it didn’t work: http://forums.malwarebytes.org/index.php?showtopic=130750

Cheers