Discovering and securing on-premises Microsoft solutions is paramount in today’s cybersecurity landscape.

In this article, we delve into ‘msprobe,’ a powerful tool designed to aid in the identification of on-prem Microsoft products.

With its versatile modules, ‘msprobe’ empowers security professionals to pinpoint and assess potential vulnerabilities, ensuring robust protection for organizations.

About 

Finding all things on-prem Microsoft for password spraying and enumeration.

The tool will used a list of common subdomains associated with your target apex domain to attempt to discover valid instances of on-prem Microsoft solutions. Screenshots of the tool in action are below:

Installing 

Install the project using pipx

pipx install git+https://github.com/puzzlepeaches/msprobe.git

Usage 

The tool has four different modules that assist with the discovery of on-prem Microsoft products:

  • Exchange
  • RD Web
  • ADFS
  • Skype for Business

The help menu and supported modules are shown below:

Usage: msprobe [OPTIONS] COMMAND [ARGS]...

  Find Microsoft Exchange, RD Web, ADFS, and Skype instances

Options:
  --help  Show this message and exit.

Commands:
  adfs   Find Microsoft ADFS servers
  exch   Find Microsoft Exchange servers
  full   Find all Microsoft supported by msprobe
  rdp    Find Microsoft RD Web servers
  skype  Find Microsoft Skype servers

Examples 

Find ADFS servers associated with apex domain:

msprobe adfs acme.com

Find RD Web servers associated with apex domain with verbose output:

msprobe rdp acme.com -v

Find all Microsoft products hostsed on-prem for a domain:

msprobe full acme.com