Easy to Build Wireless Keylogger

Figure 1 

The project uses a purely electronic device to create a hardware keylogger with a wireless modification to avoid a physical access to the keylogger while retrieving the captured data.

There are two main building blocks that comprise the wireless keylogger which includes the transmitter and the receiver which are both on the same schematics and circuit board. The actual keylogging happens in the transmitter keylogger that has a built-in 2.4GHz wireless module. The transmission of captured keystroke data is through radio-link real-time and is a wireless acquisition unit with a USB interface. Being sent to the host computer through a virtual COM port are the keystroke data received from the transmitter. This allows any terminal client to be used for visualizing keystroke data.

The text typed on the remote computer is seen immediately on the receiver side since the entire system works in real-time. The device resembles a standard extension cable due to the recommended housing using an EMC-balun enclosure. The core components of system are the Atmel AT91SAM7S64 microcontroller and the nRF2401 wireless transceiver which both require crystal for proper operation along with the MCP1700 voltage regulator and simple wire dipole antenna.

Rest of the project