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Kamkar spells out the process for determining the kind of chip that the keyboard is using and the frequency and protocol it’s using to communicate with the USB dongle. The KeySweeper project builds on previous work from Travis Goodspeed and Thorsten Schröder and Max Moser. The effective range of the KeySweeper device is likely about the typical range of a Bluetooth device, he said, but that could be extended using a low-noise amplifier.
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Kamkar said he picked Microsoft’s keyboards after going into Best Buy and seeing which models seemed to be the most prevalent. Wireless keyboards have become a popular option for users wanting to connect to a laptop. “If KeySweeper is removed from AC power, it appears to shut off, however it continues to operate covertly using an internal battery that is automatically recharged upon reconnecting to AC power,” Kamkar said in a post explaining the new device.Ī $10 USB charger can record your keystrokes wirelessly. “KeySweeper has the capability to send SMS alerts upon certain keystrokes being typed, e.g. When it’s plugged into a wall socket, the KeySweeper will connect to a nearby Microsoft wireless keyboard and passively sniff, decrypt and record all of the keystrokes and send them back to the operator over the Web. The components are inexpensive and easily available, and include an Arduino microcontroller, the charger itself and a handful of other bits.
Usb keylogger phone charger code#
The device is known as KeySweeper and Kamkar has released the source code and instructions for building one of your own. Hardware hacker and security researcher Samy Kamkar has released a slick new device that masquerades as a typical USB wall charger but in fact houses a keylogger capable of recording keystrokes from nearby wireless keyboards.