rtkit: By Jolan "Blenderwizard" Rathelot

What is this ?

rtkit is a Simple Linux Kernel Module, or LKM, rootkit that allows users to hide process, file and directories, grant a root shell, and hide itself the kernel mod list.

Warning

Use of this project is for Educational / Testing purposes only. Using it on unauthorised machines is strictly forbidden. If somebody is found to use it for illegal / malicious intent, author of the repo will not be held responsible.

Note

This Module has only been tested on linux kernel version 6.0.0. It should be compatable with most other versions.

Resources

Features

The ablility to hide any file or directory that start with a prefix, by default this prefix is "rtkit_exclude". This prefix can be modified by changing DIRECTORY_EXCLUSION_PREFIX found in include/rootkit_utils.h.
The ablility to hide user definable process ids. Running kill -66 <pid to hide> hide the any running process with that pid. The number 66 can be changed by modifying TOGGLE_PID_HIDE_SIGNAL_CODE in include/rootkit_utils.h
The ability to hide or show the module from lsmod. Running kill -65 <any number> toggles it's visiblility. The number 65 can be changed by modifying TOGGLE_MODULE_HIDE_SIGNAL_CODE in include/rootkit_utils.h
The ablility to get a root shell. Running kill -64 <any number> grants you a root shell. The number 64 can be changed by modifying ROOT_SHELL_SIGNAL_CODE in include/rootkit_utils.h

Install

Clone the repository and navigate to the root of the directory, to build and install the module, simply run make followed by make install.

You will need to be a privelaged used on the system to run make install.

Congrats the rootkit has been installed!

Uninstall

To uninstall you need to unhide the module, you can check if the module is hidden with lsmod. If the module is hiddent you can unhide it with kill -65 1.

Then run make uninstall.

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