포트 스캐너

00./04. Python 2013.09.04 15:00

포트 스캐너



 개발 언어

 Python 

 버 전 

 v0.1 

 기 타

 nmap 사용이 더 용이함






import optparse

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')

        results = connSkt.recv(100)

        screenLock.acquire()

        print '[+]%d/tcp open'%tgtport

        print '[+] ' + str(results)

    except:

        screenLock.acquire()

        print '[-]%d/tcp closed'% tgtPort

    finally:

        screenLock.release()

        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 = 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 cmma')

    (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()



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