Spyware:Spyware is a type of malware that is installed surreptitiously on personal computers to collect information about users, their computer or browsing habits without their informed consent.
MalwareDoctor, also known as Malware Doc or MalwareDoc, is a rogue system optimization program usually promoted as an online scanner. MalwareDoctor is known to trick you into believing your computer is infested with spyware to then lure you into purchasing MalwareDoctor's full version to remove the imaginary threats. MalwareDoctor may run its fake system scanner every time you boot your computer and generate a list of spyware infections as a result.
In addition, MalwareDoctor is able to modify Windows host file to redirect access to computer security websites. The Trojan associated with MalwareDoctor may damage your computer system, make computer's performance slower and run less efficiently.
Technical details (How to remove MalwareDoctor(pop up))