fuzz-hter.py

import socket

numAs = 10

try:
	while True:
		# open a connection to vulnserver
		s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
		s.connect (("localhost", 9999))
		
		# receive the banner for vulnserver
		s.recv (1024)
		
		print "[*] Sending " + str(numAs) + " As"
		
		# send the number of As to fuzz the HTER command
		s.send ("HTER " + "A" * numAs + " \r\n")
		
		# receive the response from vulnserver
		s.recv (1024)
		
		# close the connection
		s.close ()
		
		# increase the number of As we send next time
		numAs += 10
except:
	# if we get to here then something happened to vulnserver because the connection is closed
	print "Socket closed after sending " + str(numAs - 10) + " As"