This program was written using Go version 1.15.5, other versions will likely work but are not tested.

This program can be used to extract information using the NTLMSSP challenge provided during NTLM authentication.

Depending on your host OS compile instruction may vary slightly, however they should be quite similar.

You can compile this with a simple go build /path/to/main/directory on Linux or Windows.

If your current directory when running the command is the main directory, you can simply run go build ..

Once compiled this software will take one argument as the target URL.

Below are a few examples on how to run this software:

ntlmInfo https://mail.domain.com/ews
ntlmInfo smtp://mail.domain.com
ntlmInfo smtp://mail.domain.com:2525
ntlmInfo rdp://192.168.0.10
ntlmInfo rdp://192.168.0.10:4489

If a port is not specified the default will be used as follows:

RDP:   3389
SMTP:  25
HTTP:  80
HTTPS: 443

The output should be as follows:

+-------------------+-----------------------------------------------+
|       Server Name | HOSTNETBIOS                                   |
|       Domain Name | CHILDDOMAIN                                   |
|       Server FQDN | hostnetbios.childdomain.parentdomain.tld      |
|       Domain FQDN | childdomain.parentdomain.tld                  |
|     Parent Domain | parentdomain.tld                              |
| OS Version Number | 10.0.19041                                    |
|        OS Version | Windows 10/Server 2019 (Build 19041)          |
+-------------------+-----------------------------------------------+

Much of the information used to create this software came from this excellent in depth page on the NTLMSSP protocol.

http://davenport.sourceforge.net/ntlm.html