Windows Test Master is a fake rogue anti-spyware program that is part of the
Fake Microsoft Security Essentials infection. When this infection is installed on your computer it will display a fake Microsoft Security Essentials alert that states that it has detected an
Unknown Win32/Trojan on your computer. This alert will state:
Microsoft Security Essentials Alert
Potential Threat Details
Microsoft Security Essentials detected potential threats that might compromise your private or damage your computer. Your access to these items may be suspended until you take an action. Click 'show details' to learn more.