MasterAntivirus 2009 is a rogue
anti-spyware program that displays false security
messages to force the user to buy the full version
of this dangerous software. MasterAntivirus 2009 spreads
through system security holes or it may be installed
by trojan horses. MasterAntivirus 2009 shows big amount
of fake security warnings and pop up's. These messages
may slow your PC perfomance and cause critical system
errors.