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

PE infection (PE Patcher) example

This example looks at the PE_Patcher project. It can be found under the Chapter#2 folder of this book’s GitHub project, which is publicly available. To save space, we only extracted the highlighted code; please refer to the full project to view the full source code.

Given any executable (for example, a game installer) and specific malicious code (shellcode), we can use what we have learned so far to infect the game’s installer so that the gamer thinks they are running the game installer but executes our backdoor instead.

In this section, we will learn how to infect a normal program with shellcode in the form of a worm. The core idea is to put a malicious section in the normal program to hold the malicious code and point the program entry to the malicious code so that the infected program will trigger our malicious code directly after execution.

Figure 2.7 shows common shellcode on the internet, whose function is to pop up a...