Q: What’s the difference between the USB cable on the left and the USB cable on the right? A: When you plug the one on the right between keyboard and computer, it will transmit every key press to a remote receiver, one secret password or adult URL at a time.
The cable is in fact a disguised extension piece, and the round nubbin contains the electronics. It is available in kit form from Keelog, a company that will also sell you a ready made hardware keylogger for both USB and PS/2 keyboards.
The beauty of the hardware logger is that it doesn’t require anything to be installed on the victim’s machine, and is therefore both undetectable by software and doesn’t require any hacking to install. Yes, you need physical access to a machine to hook it up, but once you have that, setup is trivially easy.
Once done, you can sit back, hook the receiver to your own machine and watch as the letters and numbers appear on your screen in real time. The maximum range is 50 meters (56 yards), and when walls and the real world get involved, you can expect around 20m.
The kit involves not only soldering but the loading of firmware onto chips and, of course, building the cable so it looks convincing enough. $40, plus possible jail time.
Product page [Keelog. Thanks, Andrew!]
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