利用Python脚本写端口扫描器socket,python-nmap_python_

# -*- coding: utf-8 -*- import optparse from socket import * import threading threadLock=threading.Lock() #实例化threadLock对象 def connScan(Host,Port): try: conn=socket(AF_INET,SOCK_STREAM) conn.connect((Host,Port)) conn.send('test message'.encode("utf-8")) #发送测试信息给端口 results=conn.recv(100) #接收主机返回的信息 threadLock.acquire() #加锁 print('[+]%d/tcp open'% Port) print('[+] '+results.decode("utf-8")) conn.close() except Exception as e: threadLock.acquire() print(e) print('[-]%d/tcp closed'% Port) finally: threadLock.release() #释放锁 conn.close() def portScan(Host,Ports): try: IP=gethostbyname(Host) ##获得对应主机的ip地址 except: print("[-] Cannot resolve '%s':Unknown host" %Host) return try: Name=gethostbyaddr(Host) ##获得ip对应主机的信息 print ("\n[+] Scan Results for:"+Name[0]) except: print ("\n[+] Scan Results for:"+IP) setdefaulttimeout(1) for Port in Ports: print ("Scanning port "+Port) connScan(Host,int(Port)) def main(): usage="usage %prog -H  -p/-P " parser=optparse.OptionParser(usage) #创建对象实例 parser.add_option('-H',dest='Host',type='string',help='target host') ##需要的命令行参数 parser.add_option('-P','-p',dest='Ports',type='string',help='target ports') (options,args)=parser.parse_args() Host=options.Host Ports=str(options.Ports).split(',') if (Host==None)|(Ports==None): ##如果主机和端口都是空的话 print(parser.usage) exit(0) portScan(Host,Ports) if __name__=='__main__': main()

# -*- coding: utf-8 -*- import nmap import optparse def Test(Hosts,port): nm=nmap.PortScanner() nm.scan(Hosts,port) port_int=int(port) #将端口从字符串转化为int类型的 for t in nm.all_hosts(): if nm[t].has_tcp(port_int): #如果445端口提供了TCP协议 state=nm[t]['tcp'][port_int]['state'] #判断该TCP 445 端口的状态 if state=='open': print ('[+]Found Target Host:'+t) return def main(): usage="usage %prog -H  -p/-P " parser=optparse.OptionParser(usage) #创建对象实例 parser.add_option('-H',dest='Host',type='string',help='target host') ##需要的命令行参数 parser.add_option('-P','-p',dest='Port',type='string',help='target ports') (options,args)=parser.parse_args() Hosts=options.Host Port=options.Port if (Hosts==None)|(Port==None): #如果主机和端口都是空的话 print(parser.usage) exit(0) #退出 else: Test(Hosts,Port) if __name__=='__main__': main()