Book Image

Nmap: Network Exploration and Security Auditing Cookbook - Second Edition

By : Paulino Calderon
Book Image

Nmap: Network Exploration and Security Auditing Cookbook - Second Edition

By: Paulino Calderon

Overview of this book

This is the second edition of ‘Nmap 6: Network Exploration and Security Auditing Cookbook’. A book aimed for anyone who wants to master Nmap and its scripting engine through practical tasks for system administrators and penetration testers. Besides introducing the most powerful features of Nmap and related tools, common security auditing tasks for local and remote networks, web applications, databases, mail servers, Microsoft Windows machines and even ICS SCADA systems are explained step by step with exact commands and argument explanations. The book starts with the basic usage of Nmap and related tools like Ncat, Ncrack, Ndiff and Zenmap. The Nmap Scripting Engine is thoroughly covered through security checks used commonly in real-life scenarios applied for different types of systems. New chapters for Microsoft Windows and ICS SCADA systems were added and every recipe was revised. This edition reflects the latest updates and hottest additions to the Nmap project to date. The book will also introduce you to Lua programming and NSE script development allowing you to extend further the power of Nmap.
Table of Contents (25 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
13
Brute Force Password Auditing Options
17
References and Additional Reading

Retrieving the NetBIOS name and MAC address of a host


NetBIOS name resolution is enabled in most of Windows clients today and even a debugging utility called nbtstat is shipped with Windows to diagnose name resolution problems with NetBIOS over TCP/IP. We can use NetBIOS to obtain useful information such as the computer name, user, and MAC address with one single request.

This recipe shows how to retrieve the NetBIOS information and MAC address of a Windows host with Nmap.

How to do it...

Open your terminal and enter the following Nmap command:

$ nmap -sU -p137 --script nbstat <target>

The NSE script  nbstat will return the NetBIOS name, NetBIOS user, and MAC address of the system:

   PORT    STATE SERVICE 
   137/udp open  microsoft-ds 
   MAC Address: 9C:2A:70:10:84:BF (Hon Hai Precision Ind.) 
   Host script results: 
   |_nbstat: NetBIOS name: ALIEN, NetBIOS user: <unknown>, NetBIOS MAC:    
   9C:2A:70:10:84:BF (Hon Hai Precision Ind.) 

How it works...

NetBIOS names identify resources...