發(fā)簡信
IP屬地：江蘇
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這個掃描器用的是：
TCP全連接掃描！
TCP全連接，即完成一次完整的TCP連接！經(jīng)過三次握手后來判斷目標端口是否開放！
三次握手：
A 向 B發(fā)送一個帶有SYN的TCP報文請求連接！
B 收到后向 A 發(fā)送一個帶有ACK和SYN的TCP報文表示確認和請求連接！
A 收到后向 B發(fā)送一個帶有ACK的TCP報文表示確認并正式開始連接！ -
給那些初學掃描器的小白們~~~
#-*- coding:utf-8 -*-
from socket import *
def portScanner(host,port):
try:
s = socket(AN_INET,SOCK_STREAM)
s.connect((host,port))
print('[+] %d open' % port)
s.close()
except:
print('[-] %d close' % port )
def main():
setdefaulttimeout(1)
for p in range(1,1024):
portScanner('127.0.0.1',p)
if __name__ == '__main__':
main() -
拓展~
import optparse
from threading import *
from socket import *
setdefaulttimeout(5)
screenLock = Semaphore(value=1)
def connScan(tgtip,port):
ip_port = (tgtip,port)
sk = socket(AF_INET,SOCK_STREAM)
try:
sk.connect(ip_port)
sk.send("The is test!")
banner=sk.recv(100)
screenLock.acquire()
print "[+]Port %d Open"%(int(port))
print "[+]"+str(banner)
except Exception,sk_error:
screenLock.acquire()
#print sk_error
print "[-]Port %d Close"%(port)
finally:
screenLock.release()
sk.close()
def portScann(tgtHost,tgtPort):
try:
tgtip = gethostbyname(tgtHost)
print "[+]Scanner Host:"+str(tgtip)
for port in tgtPort:
print "[+]Scanner Port %d " %(int(port))
t = Thread(target=connScan,args=(tgtip,int(port)))
t.start()
except:
print "[-]Unknow The Host:"+str(tgtHost)
exit(0)
def main():
parser = optparse.OptionParser("Please Enter Option!")
parser.add_option("-H",dest="tgtHost",type="string",
help="Enter You Target!")
parser.add_option("-P",dest="tgtPort",type="string",
help="Enter Scanner Port!10,20!")
(options,args) = parser.parse_args()
if (options.tgtHost == None) | (options.tgtPort == None):
print parser.usage
exit(0)
tgtHost = options.tgtHost
tgtPort = options.tgtPort.split(',')
portScann(tgtHost,tgtPort)
if __name__ == '__main__':
main()
