NTLMRecon – A tool to enumerate information from NTLM authentication enabled web endpoints


NTLMRecon – A tool to enumerate information from NTLM authentication enabled web endpoints


NTLMRecon is built with flexibility in mind. Need to run recon on a single URL, an IP address, an entire CIDR range or combination of all of it all put in a single input file? No problem! NTLMRecon got you covered. Read on.

A fast and flexible NTLM reconnaissance tool without external dependencies. Useful to find out information about NTLM endpoints when working with a large set of potential IP addresses and domains.


  1. Implement aiohttp based solution for sending requests
  2. Integrate a spraying library
  3. Add other authentication schemes found to the output
  4. Automatic detection of autodiscover domains if the domain

Overview of NTLMRecon

NTLMRecon looks for NTLM enabled web endpoints, sends a fake authentication request and enumerates the following information from the NTLMSSP response:

  1. AD Domain Name
  2. Server name
  3. DNS Domain Name
  4. FQDN
  5. Parent DNS Domain

Since NTLMRecon leverages a python implementation of NTLMSSP, it eliminates the overhead of running Nmap NSE http-ntlm-info for every successful discovery.

On every successful discovery of a NTLM enabled web endpoint, the tool enumerates and saves information about the domain as follows to a CSV file :

URLDomain NameServer NameDNS Domain NameFQDNDNS Domain

Installation of NTLMRecon


NTLMRecon is already packaged for BlackArch and can be installed by running pacman -S ntlmrecon


If you’re on Arch Linux or any Arch Linux based distribution, you can grab the latest build from the Arch User Repository.


You can simply run pip install ntlmrecon to fetch the latest build from PyPI

Build from source

  1. Clone the repository : git clone https://github.com/sachinkamath/ntlmrecon/
  2. RECOMMENDED – Install virtualenv : pip install virtualenv
  3. Start a new virtual environment : virtualenv venv and activate it with source venv/bin/activate
  4. Run the setup file : python setup.py install
  5. Run ntlmrecon : ntlmrecon --help

Usage of NTLMRecon

$ ntlmrecon --help                                                                                                                                                                                                                                 

         _   _ _____ _     ___  _________                     
        | \ | |_   _| |    |  \/  || ___ \                    
        |  \| | | | | |    | .  . || |_/ /___  ___ ___  _ __  
        | . ` | | | | |    | |\/| ||    // _ \/ __/ _ \| '_ \ 
        | |\  | | | | |____| |  | || |\ \  __/ (_| (_) | | | |
        \_| \_/ \_/ \_____/\_|  |_/\_| \_\___|\___\___/|_| |_|

             v.0.2 beta - Y'all still exposing NTLM endpoints?

usage: ntlmrecon [-h] [--input INPUT | --infile INFILE] [--wordlist WORDLIST] [--threads THREADS] [--output-type] [--outfile OUTFILE] [--random-user-agent] [--force-all] [--shuffle] [-f]

optional arguments:
  -h, --help           show this help message and exit
  --input INPUT        Pass input as an IP address, URL or CIDR to enumerate NTLM endpoints
  --infile INFILE      Pass input from a local file
  --wordlist WORDLIST  Override the internal wordlist with a custom wordlist
  --threads THREADS    Set number of threads (Default: 10)
  --output-type, -o    Set output type. JSON (TODO) and CSV supported (Default: CSV)
  --outfile OUTFILE    Set output file name (Default: ntlmrecon.csv)
  --random-user-agent  TODO: Randomize user agents when sending requests (Default: False)
  --force-all          Force enumerate all endpoints even if a valid endpoint is found for a URL (Default : False)
  --shuffle            Break order of the input files
  -f, --force          Force replace output file if it already exists

Example Usage

NTLMRecon on a single URL

$ ntlmrecon --input https://mail.contoso.com --outfile ntlmrecon.csv

Recon on a CIDR range or IP address

$ ntlmrecon --input --outfile ntlmrecon-ranges.csv

Recon on an input file

The tool automatically detects the type of input per line and gives you results automatically. CIDR ranges are expanded automatically even when read from a text file.

Input file can be something as mixed up as :


To run recon with an input file, just run :

$ ntlmrecon --infile /path/to/input/file --outfile ntlmrecon-fromfile.csv




@nyxgeek for the awesome wordlist in lyncsmash repository and for the idea behind ntlmscan.


If you’d like to see a feature added into the tool or something doesn’t work for you, please open a new issue.