This virus removal tool will detect and remove W32/CleanBlocker Trojan and its variants from your computer.

Protector plus - Windows Vulnerability Scanner checks your system for Windows Vulnerabilities

Avira offers best free antivirus protection against dangerous viruses, worms, Trojans and spyware while using just a small part of your PC`s resources - Download Avira Free Antivirus 2013

Finds unknown threats in your machine by positively identifying every executable. Unknown executables are immediately transmitted to our lab for analysis. Boasts highest detection rate of any product. Checks registry, cookies, too. Very, fast. Free!

Immunos is a very user-friendly malware-scanner with a clean, simple but chic interface and great detection and removal abilities. Immunos can be scheduled to perform auto-updates at intervals selected by the user.