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

Examples of bypassing UAC

In the DLL side-loading example section in Chapter 5, we briefly introduced the DLL side-loading technique, which allows us to hijack the execution process by simply dropping a DLL module into the same directory as the program. You must have guessed, if we could find a vulnerable high-privilege system program that could drop a malicious DLL module into the same directory, wouldn’t that allow the privilege-elevated program to automatically mount our DLL file, allowing us to act maliciously as a privilege-elevated process?

In practice, it is not that easy. As mentioned earlier, basically, the system programs that can be automatically privileged in the complete UAC authentication process must be located in C:\Windows\System32 or C:\Windows\SysWOW64. These two system directories are the directories where files cannot be written without privileging. However, if we don’t have high-privilege write access, is it possible to borrow from a high-privilege...