【Python黑帽子】——搭建TCP端口扫描器

阿里云国内75折回扣微信号：monov8

阿里云国际，腾讯云国际，低至75折。AWS 93折免费开户实名账号代冲值优惠多多微信号：monov8 飞机：@monov6

作者名Demo不是emo

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创作初心舞台再大你不上台永远是观众没人会关心你努不努力摔的痛不痛他们只会看你最后站在什么位置然后羡慕或鄙夷
座右铭不要让时代的悲哀成为你的悲哀
专研方向网络安全数据结构

每日emo唯有信仰与日月亘古不变

经过一段时间python黑帽编程的学习我们的漏洞扫描器搭建之旅就要开始了最开始当然要做的就是端口扫描器所以这篇博客我们的内容就是搭建一个TCP扫描器来看看吧

侦查是任何网络攻击的第一步。在选择目标的漏洞利用程序之前攻击者必须找出漏洞在哪。在下面的章节中我们将建立一个小型的侦查脚本用来扫描目标主机开放的 TCP 端口。

代码如下

# coding=UTF-8
import optparse
import socket
import threading

screenLock = threading.Semaphore(value=1)


def connScan(tgtHost, tgtPort):
    try:
        connSkt = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        connSkt.connect((tgtHost, tgtPort))
        print('[+]%d/tcp open' % tgtPort)
    except Exception:
        print('[-]%d/tcp closed' % tgtPort)
    try:
        # connSkt.send('ViolentPython\r\n')
        results = connSkt.recv(1024).decode("UTF-8")
        screenLock.acquire()
        print('[+]%d/tcp info:  ' % tgtPort + str(results))
    except Exception:
        screenLock.acquire()
        print('[-]%d can"t receive info' % tgtPort)
    finally:
        screenLock.release()
        connSkt.close()


def portScan(tgtHost, tgtPorts):
    try:
        tgtIP = socket.gethostbyname(tgtHost)
    except Exception:
        print("[-] Cannot resolve '%s': Unknown host" % tgtHost)
        return
    try:
        tgtName = socket.gethostbyaddr(tgtIP)
        print('\n[+] Scan Results for: ' + tgtName[0])
    except Exception:
        print('\n[+] Scan Results for: ' + tgtIP)
    socket.setdefaulttimeout(1)
    for tgtPort in tgtPorts:
        print('Scanning port ' + str(tgtPort))
        t = threading.Thread(target=connScan, args=(tgtHost, int(tgtPort)))
        t.start()


def main():
    parser = optparse.OptionParser('usage %prog –H<target host> -p <target port>')
    parser.add_option('-H', dest='tgtHost', type='string', help='specify target host')
    parser.add_option('-p', dest='tgtPort', type='int', help='specify target port')
    (options, args) = parser.parse_args()
    tgtHost = options.tgtHost
    tgtPort = options.tgtPort
    args.append(tgtPort)
    if (tgtHost is None) | (tgtPort is None):
        print('[-] You must specify a target host and port[s]!')
        exit(0)
    portScan(tgtHost, args)


if __name__ == '__main__':
    main()

效果展示