Learning Assembly Language

This course provides a hands-on introduction to programming in the x86 assembler and shows you how it can be used to access system functions through the Windows API.

Introduction

• Understanding low-level programming in assembler
• What you should know

1. Preparing Your Assembler Environment

• Introduction to assembly language
• Setting up your development environment
• Setting up GoAsm in the IDE
• Developing an Enigma-like file encryptor

2. Coding in Assembler: I

• Setting up a program skeleton
• Understanding registers and memory
• Data types
• Using data structures
• The move and exchange instructions
• Extended move instructions
• Logical or bitwise operators
• Arithmetic operators
• Controlling the assembler flow
• Indirect addressing and pointers
• Console Input and output
• Challenge
• Solution

3. Coding in Assembler: II

• Calling subprograms
• Working with floating point
• Managing arrays
• Adding plugs to the Enigmatic encryptor
• The Windows API
• More on the Windows API
• Calling the printf external function
• Executing system commands
• Jump tables
• Reading data files

4. Completing the Enigmatic Encryptor

• Adding a menu and jump table to the Enigmatic encryptor
• Reading and writing the Enigmatic configuration
• Ciphering the data
• Leveraging the x64 AES instructions
• Challenge: Decryption function
• Solution: Decryption function

5. Security Issues in Assembler

• Writing a vulnerable assembler program
• Taking control flow
• Executing code from the data section

6. Using Assembly Language in Other Languages

• Calling assembler from other languages
• Using NASM
• Calling assembler routines from C
• Executing assembler in Python

Conclusion

• What's next