Python3多线程版TCP端口扫描器

本文实例为大家分享了Python3多线程版TCP端口扫描器的具体代码，供大家参考，具体内容如下

使用命令

python BannerDemo.py -H 192.168.200.101 -p 22,3306

代码如下

import optparse
import socket
from socket import *
from threading import *

screenLock = Semaphore(value=1)

def connScan(tgtHost,tgtPort):
 try:
 connSkt = socket(AF_INET,SOCK_STREAM)
 connSkt.connect((tgtHost,tgtPort))
 connSkt.send('ViolentPython\r\n'.encode('utf-8'))
 result = connSkt.recv(1024)
 screenLock.acquire()
 print("[+] %d/tcp open"%tgtPort)
 print("[+]"+str(result))
 except Exception as e:
 screenLock.acquire()
 print(e)
 finally:
 screenLock.release()
 connSkt.close()


def portScan(tgtHost,tgtPorts):
 try:
 tgtIp = gethostbyname(tgtHost)
 except:
 print("[-] Cannot reslove '%s' : Unknown host" % tgtHost)
 return

 try:
 tgtName = gethostbyaddr(tgtIp)
 print("\n [+] Scan Result for: " + tgtName[0])
 except:
 print("\n [+] Scan Result for: " + tgtIp)

 setdefaulttimeout(1)
 for tgtPort in tgtPorts:
 print("Scanning port "+ tgtPort)
 t = 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='string',help='specify target port[s] separated by comma')
 options,args = parser.parse_args()
 tgtHost = options.tgtHost
 tgtPorts = str(options.tgtPort).split(',')
 if(tgtHost == None or tgtPorts[0] == None):
 print("[-] You must specify a target host and port[s]")
 exit(0)
 portScan(tgtHost,tgtPorts)

if __name__ == '__main__':
 main()

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。