【Python黑帽子】——搭建TCP端口扫描器

       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

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

这个端口扫描器有两个作用，

 这个代码拿去就可以用，同时也在我的github和gitee上更新了 ，里面还附带有详细的用法说明，工具后面也会不断更新，欢迎持续关注

Gitee地址：PortScan_pro: TCP端口扫描器加强版 (gitee.com)