C++ Shellcode Tutorial Part 5: QueueUserAPC

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Making the GH Injector required a solid shellcoding library, I will be showing you how to create one today. This is a 5 part series, we'll release 1 video per day so stay tuned.

In this tutorial you will learn about shellcode injection using C++. C++ is a robust and low level language allowing this guide to shellcoding the ability to teach people basic to advanced concepts in shell code.

What is shellcode?

Shellcode is a piece of code written in assembly language, which is your computers way of outputting and inputting instructions via CPU and memory. This code is written to a target process. Many elite, game, nation state, and blackhat hackers use shellcode injection to infect their targets computers to carry out sophisticated hacks.

In this shellcode tutorial you will learn about advanced functions used in shellcode injection. Using Windows API functions such as QueueUserAPC(), GetProcessId(), and GetTickCount() you will develop skills needed to develop your advanced dll injection source code. QueueUserAPC injection is a technique used to takes advantage of the asynchronous procedure call to queue a specific thread. This API has several benefits in which the most appreciated is its ability to circumvent Sysmon and various anti-virus software.

This C++ shellcode tutorial will teach you the best practices for using QueueUserAPC shellcode in dll injection and how these same techniques used by nation state hackers will help you develop your own QueueUserAPC injection shellcode.

In this C++ shellcode tutorial you will learn:

. How to use the Windows API function QueueUserAPC() to inject shellcode in to a target.
. Robust C++ shellcode injection techniques.

This is the last part in a five part series about shell code tutorial. At the end of this road you have gained nation state and APT level hacking knowledge which with practice you’ll be able to take on to develop even further in dll injection and shellcode injection. Guided Hacking hopes you’ve learnt and solidified your foundations in this shell code tutorial and by using functions like Queue User APC you can go on to develop advanced dll injection C++ source code.

https://guidedhacking.com/threads/c-shellcode-execution-tutorial.12132/

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