Backdoors using Bash
In this lab, you’ll practice using the bash language and Linux configuration and look at the different ways bash can be used to help create backdoor access into systems and connect to those backdoors. When you’re finished, you’ll have the necessary skills and knowledge to perform red team assessments using bash for activities relevant to pen testing and offensive security.
Terms and conditions apply.
Challenge
Getting Started in the Lab Environment
Here are the initial instructions and explanation of the lab environment. Read this while your environment is busy creating itself from nothing. Yes, this violates physics; we know. How fun!
Challenge
Backdoor Access using Cron Jobs
In this challenge you will need to create a backdoor on a corporate machine in order to maintain persistence within the environment. You will perform bash script and system configuration using cron jobs. You will then connect to the created backdoor. Demonstrating how to use tools available on common operating system installations to bypass an organization's security controls supporting red team activities. Helping you to achieve results in a repeatable way.
Challenge
Backdoor Access using .bashrc
In this challenge you will need to create a backdoor on a corporate machine. You will target a specific user in a targeted attack. To help hide your activities you will gain and use access when the user is present and using the machine to mask your own red team activities. You will perform bash script and system configuration with the bashrc. You will then connect to the backdoor. This will use commonly available commands found on Linux operating system installations.
Challenge
The Last Challenge
Welcome to the final challenge! This is your last chance to experiment in the environment. Clicking Finish Lab will end this little world that flittered into existence just for you.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.
Recommended prerequisites
- Basic computer and internet knowledge including some experience of using a command line terminal, basic computer configuration.
- Will need basic scripting knowledge of bash