Misleading:The program reports false or exaggerated system security threats on the computer.The user is then prompted to pay for a full license of the application in order to remove the threats.
Win32.Monster.fx a.k.a. Spyware.Monster.fx is a fake threat. It is supposedly detected by Antivirus 2010 or Anti-Virus Number-1.
Both AntiVirus Number-1 and Antivirus2010 are corrupt security programs. They reports nonexistent infections in order to scare people into purchasing a license of Antivirus 2010/Anti-Virus-Number-1. Win32.Monster.fx is one of those fake threats. If your anti-virus detects Spyware.Monster.fx (Win32.Monster.fx), remove the fraudulent anti-virus.
Technical details (How to remove Win32.Monster.fx(pop up))