Backdoor.KeyStart.bc is the latest backdoor Trojan software, designed to display false and exaggerated results, as a means to coerce a user into purchasing the full version software. The term Trojan refers to the fact this particular malware, Backdoor.KeyStart.bc is installed under deceptive pretences, infiltrating the user’s PC without their approval or knowledge. Backdoor.KeyStart.bc is advertised through the use of advertisements that pretend to be online scanners. Backdoor.KeyStart.bc then prompts the user to download and install Backdoor.KeyStart.bc, so as to attempt to create a solution and fix the user’s computer. These scanners, though, are also frauds and have no way of knowing what is running on your computer and thus can be ignored. Should a user actually download and install Backdoor.KeyStart.bc, then the program will start every time your computer is rebooted. Once started, it will scan your computer and state that your computer can run more efficiently if you purchase Backdoor.KeyStart.bc and let it optimize your computer. In fact, it has been shown that by just having Backdoor.KeyStart.bc running on your computer can make your computer slower and run less efficiently. Backdoor.KeyStart.bc is particularly damaging to a computer system, once it has fully embedded itself within the PC’s system, therefore it is given a high priority security risk status by many computer analysts.