Capslocker
This device plugs into a USB port and implements a USB HID keyboard.
Instead of doing anything useful, it waits between 30 seconds and 8
minutes and sends the scancode for the Caps Lock key. This will toggle
the Caps Lock status on or off. Since the operating system controls the
LED on the keyboard, the Caps Lock light also toggles. This makes it
appear the user has accidentally pressed the Caps Lock key...until it
happens 20 or 30 times and they get suspicious. Then they might see the
Caps Lock light turn on by itself. Next is a sequence of reboots,
bashing the keyboard on the desk, clicking through the Control Panel,
possibly even replacing the keyboard. Unless they notice the tiny
little device sitting in one of the USB ports on the back of their
computer, nothing will help.
