端口扫描器

多线程版

import optparse
import socket
from socket import *
def connScan(tgtHost,tgtPort):
    try:
        connSkt=socket(AF_INET,SOCK_STREAM)
        connskt.connect(tgtHost,tgtPort)
        connSkt.send(\'Violenpython\r\n\')
        results=connSkt.recv(100)
        screenlock.acquire()
        print(\'[+] %d/tcp open\' %tgtPort)
        print(\'[+]\'+ str(results))
        #connSkt.close()
    except:
        screenlock.qcquire()
        print(\'[+] %d/tcp close\' % tgtPort)
    finally:
        screenlock.acquire()
        connSkt.close()
def portScan(tgtHost,tgtPorts):
    try:
        tgtip=gethostbyname(tgthost)
    except:
        print("[-] cannot resolve \'%s\' : unknown host" %tgtHost)
        return
    try:
        tgtname=gethostbyaddr(tgtip)
        print(\'\n[+] scan results for: \'+tgtname[0])
    except:
        print(\'\n[+] scan results for:\'+tgtip)
    setdefaulttimeout(1)
    for tgtPort in tgtPorts:
        t=thrad(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\',des=\'tgthost\',type=\'string\', \
    help =\'specify target host\')
    parser.add_option(\'-P\',des=\'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)| (tgtports[0]==None):
        print(parser.usage)
        exit(0)
    portScan(tgthost,tgtports)
if __name__==\'_main__\':
    main()

nmap版

# coding=UTF-8 
import optparse 
import nmap
def nmapScan(tgtHost, tgtPort):    
    nmScan = nmap.PortScanner()    
    results = nmScan.scan(tgtHost, tgtPort)
    state = results[\'scan\'][tgtHost][\'tcp\'][int(tgtPort)][\'state\']    
    print(" [*] " + tgtHost + " tcp/" + tgtPort + " " + state) 
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\')    
    (options, args)=parser.parse_args()   
    tgtHost = options.tgtHost    
    tgtPort = options.tgtPort    
    args.append(tgtPort)    
    if (tgtHost == None) | (tgtPort == None):        
        print(\'[-] You must specify a target host and port[s]!\')        
        exit(0)    
        for tgport in args:        
            nmapScan(tgtHost, tgport) 
if __name__ == \'__main__\':
    main()