Information Gathering

NTLMRecon – Enumerate Information From NTLM Authentication

NTLMRecon - A Tool To Enumerate Information From NTLM Authentication Enabled Web Endpoints

 

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.

NTLMRecon is built with flexibilty 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.

Demo

Overview
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 :

URL Domain Name Server Name DNS Domain Name FQDN DNS Domain
https://contoso.com/EWS/ XCORP EXCHANGE01 xcorp.contoso.net EXCHANGE01.xcorp.contoso.net contoso.net

Installation

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

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

PyPI
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

î‚° $ 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

Recon on a single URL
$ ntlmrecon --input https://mail.contoso.com --outfile ntlmrecon.csv

Recon on a CIDR range or IP address
$ ntlmrecon --input 192.168.1.1/24 --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 :

mail.contoso.com
CONTOSOHOSTNAME
10.0.13.2/28
192.168.222.1/24
https://mail.contoso.com

To run recon with an input file, just run :
$ ntlmrecon --infile /path/to/input/file --outfile ntlmrecon-fromfile.csv

Acknowledgements

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

 


About the author

Mazen

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