Keylogger

Linux kernel module to log pressed keys on a keyboard The logfile contains:

• code: scancode of pressed key
• duration: time interval of key pressing (msec)
• interval: time interval between t1 (previous key was released) and t2 (current key was pressed) (msec)

Build

make

Install module

sudo insmod kbd_module.ko

Remove module

sudo rmmod kbd_module

Get info about module condition and/or possible errors

dmesg

Check whether the module is installed

lsmod

Open logfile

gedit /var/log/kbd.log