Book Image

Windows APT Warfare

By : Sheng-Hao Ma
5 (2)
Book Image

Windows APT Warfare

5 (2)
By: Sheng-Hao Ma

Overview of this book

An Advanced Persistent Threat (APT) is a severe form of cyberattack that lies low in the system for a prolonged time and locates and then exploits sensitive information. Preventing APTs requires a strong foundation of basic security techniques combined with effective security monitoring. This book will help you gain a red team perspective on exploiting system design and master techniques to prevent APT attacks. Once you’ve understood the internal design of operating systems, you’ll be ready to get hands-on with red team attacks and, further, learn how to create and compile C source code into an EXE program file. Throughout this book, you’ll explore the inner workings of how Windows systems run and how attackers abuse this knowledge to bypass antivirus products and protection. As you advance, you’ll cover practical examples of malware and online game hacking, such as EXE infection, shellcode development, software packers, UAC bypass, path parser vulnerabilities, and digital signature forgery, gaining expertise in keeping your system safe from this kind of malware. By the end of this book, you’ll be well equipped to implement the red team techniques that you've learned on a victim's computer environment, attempting to bypass security and antivirus products, to test its defense against Windows APT attacks.
Table of Contents (17 chapters)
1
Part 1 – Modern Windows Compiler
5
Part 2 – Windows Process Internals
9
Part 3 – Abuse System Design and Red Team Tips

Dynamic API Calling – Thread, Process, and Environment Information

In this chapter, we will learn the basics of Windows API calls in x86 assembly. We will first learn about the Thread Environment Block (TEB) and the Process Environment Block (PEB), and how attackers use these features in malicious software. By the end of this chapter, you should have a better understanding of how the compiler makes dynamic calls through calling conventions so that the program will run as we expect. With these foundations in place, you can move step by step toward the goal of writing your own Windows shellcode. For example, calling a Windows API that does not exist in our source code allows evading antivirus detection of blacklisted API names.

In this chapter, we’re going to cover the following main topics:

  • Function calling convention
  • Thread Environment Block (TEB)
  • Process Environment Block (PEB)
  • Examples of process parameter forgery
  • Examples of enumerating loaded...