Tryhackme – Linux Backdoors

In this walk through, we will be going through the Linux Backdoors room from Tryhackme. In this room, we will learn all the different techniques used to backdoor a Linux machine. So, let’s get started without any delay.

Task 1 – Introduction

Task 2 – SSH Backdoors

Question 1 – In what directory do we place our keys ?

.ssh

Question 2 – What flag in ssh do we use to show our private key?

-i

Task 3 – PHP Backdoors

Question 1 – You understand what a PHP Backdoor is

Done

Task 4 – CronJob Backdoors

Question 1 – What does the letter “m” mean in cronjobs?

minute

Question 2 – What does the letter “h” mean in cronjobs?

hour

Task 5 – .bashrc Backdoors

Task 6 – pam_unix.so Backdoors

Question 1 – I understand the art of linux backdoors!

Done

Question 2 – Finish The Room!

Done

Also Read: Tryhackme – Git Happens

So that was “Linux Backdoors” for you. We learned all the different techniques used to backdoor a Linux machine. We started off with SSH backdoors, then moved to PHP and CronJob backdoors. At last, took a dive into .bashrc and pam_unix.so backdoors and complete the room. On that note, i would take your leave and will meet you in next one. Till then, “Happy hacking”.