After further thought on this issue, I would like to point out some ways to prevent this from being installed in the first place.
These are the very basic of security measures all users should take no matter what PC they are using.
Most people find this to be a pain in the a$$, but they are all essential to a strong first line defense.
Without these as part of your daily PC use routine, all the Antivirus, Spyware/Malware detectors, firewalls on the planet will NOT save you.
1.) Set a strong password, people do not take this seriously enough
.... a.) do not write down your password and leave it anywhere near your system (there is no point to a password if it's on paper and easily accessible)
2.) Lock your computer when you walk away, even for a few seconds, people Also do not take this seriously enough
3.) Don't let anyone else use your account to login and use the system (ever, for any reason)
4.) Set a BIOS Boot Password (if able to), Check with your company on a policy for this, it could get you fired, as some systems, without proper verification, can not be unlocked,reset or otherwise usable.
5.) Disable Auto Run for external devices and CD/DVD Discs or Don't plugin devices or use CD's you do not trust.
6.) Don't run programs you know nothing about or do not trust
7.) see all the above and repeat till it all sinks in