LKM to display a simple message in the kernel log.
Compile and Load:
root@kali:~# git clone https://github.com/b4sh0x1/Hello-world-LKM
root@kali:~# cd Hello-world-LKM
root@kali:~# make
root@kali:~# insmod hello.ko
root@kali:~# tail -n2 /var/log/kern.log
To remove:
root@kali:~# rmmod hello.ko
root@kali:~# tail -n2 /var/log/kern.log