

Press the button again to finish transmission.

Do not change the active application during transmission. Press the button on the hardware keylogger to initiate data download. Do not connect the keyboard.Ĭlick on the KeyGrab title bar to make it the active application. Follow the instructions for initiating data download.Ĭonnect the hardware keylogger instead of the keyboard. Once this data has been transmitted to the computer, it can be processed and analyzed. The transmitted keystroke data is acquired by a the KeyGrab application. The hardware keylogger does this by simulating keyboard keystrokes.
At89cxx51 microcontroller proteus library Pc#
Once the hardware keylogger has recorded key data, it can be retrieved to any PC running Windows 9X/Me/XP/2000. On computer power-up data will start recording. Find the PS/2 connector at the computer.Ĭonnect the hardware keylogger in place of the keyboard.Ĭonnect the keyboard to the keylogger. See also MIDI Handpan With 19 Tonefields on Upper and Down Side. Record mode is completely independent from the operating system installed on the computer. All key data sent by the keyboard will be recorded to 64 kB hardware non-volatile EEPROM memory.
At89cxx51 microcontroller proteus library software#
The keylogger is completely transparent for computer operation and cannot be detected by software in record mode. The hardware keylogger starts recording key data once plugged between the keyboard and the computer. Finally pull the thermal tubing on, heat it until it wraps around the soldered components, and cut out a small hole so the button is accessible. Connect all four used PS/2 pins (CLK, DATA, VCC, and GND) on both connectors (at the keyboard and at the computer).īefore pulling the thermal tubing around the hardware keylogger, a good idea is to let some glue or resin in between the components, to make the device more rigid. Make sure you put the heat shrink tubing on one part of the cable. A good idea is to cut the PS/2 extension cable into two pieces and solder each part separately. The keylogger circuit should look somewhat like the prototype shown on the photo, after the main components are connected.įinally, solder the PS/2 connectors to the keylogger. They will be difficult to remove after the device is finished.

Make the hardware keylogger as compact as possible, however avoid short circuits. When mounting the capacitor, make sure it’s biased correctly. Solder the components together starting from the microcontroller and the EEPROM. See also Acoustic Data Modem Using Atmega644
