[python开发模拟netcat工具] BHPnet

#!/usr/bin/python  
#-*- coding:utf8 -*-  
import sys  
import socket  
import getopt  
import threading  
import subprocess  
  
# 定义一些全局变量  
listen = False  
command = False  
upload = False  
execute = ""  
target = ""  
upload_destination = ""  
port = 0  
  
def run_command(command):  
  
    # 删除字符串末尾的空格  
    command = command.rstrip()  
    # 运行命令并将输出放回  
    try:  
        output = subprocess.check_output(command, stderr=subprocess.STDOUT, shell=True)  
    except:  
        output = "Failed to execute command.\r\n"  
    # 将输出发送  
    return output  
  
  
def client_handler(client_socket):  
    global upload  
    global execute  
    global command  
  
    # 检查上传文件  
    if len(upload_destination):  
        # 读取所有的字符并写下目标  
        file_buffer = ""  
        # 持续读取数据直到没有符合的数据  
        while True:  
            data = client_socket.recv(1024)  
  
            if not data:  
                break  
            else:  
                file_buffer += data  
  
        try:  
            file_descriptor = open(upload_destination, "wb")  
            file_descriptor.write(file_buffer)  
            file_descriptor.close()  
  
            client_socket.send("Successfully saved file to %s\r\n" % upload_destination)  
        except:  
            client_socket.send("Failed to save file to %s\r\n" % upload_destination)  
  
    # 检查命令执行  
    if len(execute):  
        # 运行命令  
        output = run_command(execute)  
        client_socket.send(output)  
  
  
    # 如果需要一个命令行shell,那么我们进入另一个循环  
    if command:  
        while True:  
            # 跳出一个窗口  
            client_socket.send("")  
  
            cmd_buffer = ""  
            while "\n" not in cmd_buffer:  
                cmd_buffer += client_socket.recv(1024)  
            #  返回命令输出  
            response = run_command(cmd_buffer)  
            # 返回响应数据  
            client_socket.send(response)  
  
def server_loop():  
    global target  
  
    # 如果没有定义目标,那我们监听所有接口  
    if not len(target):  
        target = "0.0.0.0"  
  
    server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  
    server.bind((target, port))  
  
    server.listen(5)  
  
    while True:  
        client_socket, addr = server.accept()  
        # 分拆一个线程处理新的客户端  
        client_thread = threading.Thread(target=client_handler, args=(client_socket,))  
        client_thread.start()  
  
def client_sender(buffer):  
    client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  
  
    try:  
        # 连接到目标主机  
        client.connect((target, port))  
  
        if len(buffer):  
            client.send(buffer)  
  
        while True:  
            # 现在等待数据回传  
            recv_len = 1  
            response = ""  
  
            while recv_len:  
                data = client.recv(4096)  
                recv_len = len(data)  
                response += data  
  
                if recv_len < 4096:  
                    break  
  
            print  response  
  
            # 等待更多的输入  
            buffer = raw_input("")  
            buffer += "\n"  
  
            # 发送出去  
            client.send(buffer)  
  
    except:  
        print "[*] Exception! Exiting."  
  
    #关闭连接  
    client.close()  
  
def usage():  
    print "BHP Net Tool"  
    print  
    print "Usage: bhpnet.py -t target_host - p port"  
    print "-l --listen              - listen on [host]:[port] for incoming connections"  
    print "-e --execute=file_to_run -execute the given file upon receiving a connection"  
    print "-c --command             - initialize a commandshell"  
    print "-u --upload=destination  - upon receiving connection upload a file and write to [destination]"  
    print  
    print  
    print "Examples:"  
    print "bhpnet.py -t 192.168.0.1 -p 5555 -l -c"  
    print "bhpnet.py -t 192.168.0.1 -p 5555 -l -u=c:\\target.exe"  
    print "bhpnet.py -t 192.168.0.1 -p 5555 -l -e=\"cat /etc/passwd\""  
    print "echo 'ABCDEFGHI' | python ./bhpnet.py -t 192.168.11.12 -p 135"  
    sys.exit(0)  
  
def main():  
    global listen  
    global port  
    global execute  
    global command  
    global upload_destination  
    global target  
  
    if not  len(sys.argv[1:]):  
        usage()  
  
  
    # 读取命令行选项,若没有该选项则显示用法  
    try:  
        opts, args = getopt.getopt(sys.argv[1:], "hle:t:p:cu:",["help", "listen", "execute", "target", "port", "command", "upload"])  
    except getopt.GetoptError as err:  
        print str(err)  
        usage()  
  
  
    for o,a in opts:  
        if o in ("-h","--help"):  
            usage()  
        elif o in ("-l", "--listen"):  
            listen = True  
        elif o in ("-e", "--execute"):  
            execute = a  
        elif o in ("-c", "--commandshell"):  
            command = True  
        elif o in ("-u", "--upload"):  
            upload_destination = a  
        elif o in ("-t", "--target"):  
            target = a  
        elif o in ("-p", "--port"):  
            port = int(a)  
        else:  
            assert False,"Unhandled Option"  
  
    #我们是进行监听还是仅从标准输入读取数据并发送数据？  
    if not listen and len(target) and port > 0:  
  
        # 从命令行读取内存数据  
        # 这里将阻塞,所以不再向标准输入发送数据时发送CTRL-D  
        buffer = sys.stdin.read()  
  
        # 发送数据  
        client_sender(buffer)  
  
    # 我们开始监听并准备上传文件,执行命令  
    # 放置一个反弹shell  
    # 取决于上面的命令行选项  
    if listen:  
        server_loop()  
  
#调用main函数  
main()