US Patent 9342687 Detecting synthetic keystrokes

Detecting synthetic keystrokes by maintaining a record of one or more keystrokes of physical keyboard input detected by an operating system of a computer, detecting a keystroke received at a computer application process that is executed by the computer, determining that the keystroke received at the computer application process is absent from the record of keystrokes of physical keyboard input, and identifying the keystroke received by the computer application process as being a synthetic keystroke.