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

A shellcode generator in Python

We have now attempted to write minimalist 32-bit shellcode ourselves, and readers will recognize the large number of structural offsets that need to be remembered in the process. In practice, this can make the development process difficult if there are complex task requirements. For this reason, many free community tools have been designed to automate shellcode generation – for example, Metasploit. In this section, we will try to develop a more convenient tool that can generate shellcode directly from C/C++ code.

The following example is the shellDev.py source code from the Chapter#4 folder of the GitHub project. In order to save space, this book only extracts the highlighted code; please refer to the full source code to see all the details of the project:

Figure 4.20 – Usage of shellDev.py

Figure 4.20 – Usage of shellDev.py

We mentioned in Chapter 1, From Source to Binaries – The Journey of a C Program, that there are at least three...