Название: Evading EDR: The Definitive Guide to Defeating Endpoint Detection Systems (Early Access)
Автор: Matt Hand
Издательство: No Starch Press
Год: 05-24-23
Страниц: 284
Язык: английский
Формат: pdf (true)
Размер: 10.1 MB

EDR, demystified! Stay a step ahead of attackers with this comprehensive guide to understanding the attack-detection software running on Microsoft systems—and how to evade it.

Nearly every enterprise uses an Endpoint Detection and Response (EDR) agent to monitor the devices on their network for signs of an attack. But that doesn't mean security defenders grasp how these systems actually work. This book demystifies EDR, taking you on a deep dive into how EDRs detect adversary activity. Chapter by chapter, you’ll learn that EDR is not a magical black box—it’s just a complex software application built around a few easy-to-understand components.

The author uses his years of experience as a red team operator to investigate each of the most common sensor components, discussing their purpose, explaining their implementation, and showing the ways they collect various data points from the Microsoft operating system. In addition to covering the theory behind designing an effective EDR, each chapter also reveals documented evasion strategies for bypassing EDRs that red teamers can use in their engagements.

Who This Book Is For:
This book is for any reader interested in understanding endpoint detections. On the offensive side, it should guide researchers, capability developers, and red team operators, who can use the EDR internals and evasion strategies discussed here to build their attack strategies. On the defensive side, the same information serves a different purpose. Understanding how your EDR works will help you make informed decisions when investigating alerts, building new detections, understanding blind spots, and purchasing products.

Prerequisite Knowledge:

This is a deeply technical book, and to get the most out of it, I strongly recommend that you familiarize yourself with the following concepts. First, knowledge of basic penetration testing techniques will help you better understand why an EDR may attempt to detect a specific action on a system.

We’ll spend quite a bit of time deep in the weeds of the Windows operating system. Thus, you may find it worthwhile to understand the basics of Windows internals and the Win32 API.

Because we examine source code and debugger output in depth, you may also want to be familiar with the C programming language and x86 assembly. This isn’t a requirement, though, as we’ll walk through each code listing to highlight key points.

Experience with tools like WinDbg, the Windows debugger; Ghidra, the disassembler and decompiler; PowerShell, the scripting language; and the SysInternals Suite (specifically, the tools Process Monitor and Process Explorer) will aid you as well. Although we walk through the use of these tools in the book, they can be tricky at times.




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