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

Elevated privilege conditions

We summarize the preceding reverse engineering results for Windows 10 Enterprise LTSC (10.0.17763 N/A Build 17763) and can derive the following conditions for automatic privilege elevation for UAC design:

  • The program must configure itself as Auto Elevation
  • The program should have a valid digital signature
  • The program is run from a trusted system directory

In fact, you will soon understand that there are many services and tools in the system that are directly privileged on wakeup in order to allow users to use them smoothly without having to agree to frequent authorizations. So, if we can hijack these privileged processes, wouldn’t we be able to elevate our malware as well? A few common examples are as follows:

  • The DLL module paths or commands used by a high-privileged system program are improperly stored in the registry, *.xml, or *.ini files on disk
  • The privileged service has exported a public COM interface to...