Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Pentesting Active Directory and Windows-based Infrastructure
  • Table Of Contents Toc
  • Feedback & Rating feedback
Pentesting Active Directory and Windows-based Infrastructure

Pentesting Active Directory and Windows-based Infrastructure

By : Denis Isakov
4.9 (14)
close
close
Pentesting Active Directory and Windows-based Infrastructure

Pentesting Active Directory and Windows-based Infrastructure

4.9 (14)
By: Denis Isakov

Overview of this book

This book teaches you the tactics and techniques used to attack a Windows-based environment, along with showing you how to detect malicious activities and remediate misconfigurations and vulnerabilities. You’ll begin by deploying your lab, where every technique can be replicated. The chapters help you master every step of the attack kill chain and put new knowledge into practice. You’ll discover how to evade defense of common built-in security mechanisms, such as AMSI, AppLocker, and Sysmon; perform reconnaissance and discovery activities in the domain environment by using common protocols and tools; and harvest domain-wide credentials. You’ll also learn how to move laterally by blending into the environment’s traffic to stay under radar, escalate privileges inside the domain and across the forest, and achieve persistence at the domain level and on the domain controller. Every chapter discusses OpSec considerations for each technique, and you’ll apply this kill chain to perform the security assessment of other Microsoft products and services, such as Exchange, SQL Server, and SCCM. By the end of this book, you'll be able to perform a full-fledged security assessment of the Microsoft environment, detect malicious activity in your network, and guide IT engineers on remediation steps to improve the security posture of the company.
Table of Contents (13 chapters)
close
close

Capture the hash

This section will be focused on capturing the hash, the number-one step in a well-known attack: NTLM relay. As an introduction to this theme, I highly encourage you to read the most comprehensive guide about this attack[7].

Firstly, we need to cover a bit of a theory. The NTLM authentication protocol is used for network authentication and has two versions. It uses a zero-knowledge proof concept, meaning that credentials have never been transmitted over the network. It uses a challenge-response scheme, where the server sends a random set of data and client responses with a value, which is a result of hashing this data together with some extra parameters and the client’s secret key. As an attacker, we are interested in capturing this valid NTLM response from the client. Next, we can try to crack the hash or relay it.

NTLMv1 is deprecated and not considered secure. However, it is possible to see NTLMv1 in use in older environments. There are two techniques...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY