HomeCoursesDebugging, Disassembly & Reversing in Linux for x64 Architecture

4.4

Intermediate

16h

Updated 3 months ago

Debugging, Disassembly & Reversing in Linux for x64 Architecture

Gain insights into using GDB for debugging in Linux. Explore disassembly, memory investigation, and register updates. Learn about pointers, stack, and function parameters in x64 architecture.

Overview

Content

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GNU Debugger (GDB) is used for debugging C/C++ programs in LINUX/UNIX environments. It is a good tool to investigate what is happening inside a program, and how the contents inside the memory are changed with the execution of the program. The main focus of the course is the disassembly of the program, where we'll use simple operations in C. With the help of GDB, we'll examine the contents of the registers and memory. We'll also learn how they are changed while executing basic operations. We’ll then explore the use of pointers, stack, and function parameters, and analyze how different registers update their values. With the help of disassembly output, we’ll learn how a simple C program can be reconstructed. The disassembly output is important for debugging and core dump analysis. We’ll use assembly language for x64 architecture. By the end of this course, you should be able to debug the programs and memory contents at assembly level when a program executes or probe into the problem when a program crashes.

GNU Debugger (GDB) is used for debugging C/C++ programs in LINUX/UNIX environments. It is a good tool to investigate what is hap...Show More

WHAT YOU'LL LEARN

A familiarity with disassembly in GDB environment of simple C/C++ programs

A good understanding of how to debug programs with a cross-sectional view to the contents of registers, stack and memory

The ability to use GDB as a dump analysis tool

Hands-on experience with C/C++ programs from the disassembly output

A familiarity with disassembly in GDB environment of simple C/C++ programs

Content

43 Lessons5 Quizzes1 Assessment

Introduction to the Course

1 Lessons

Get familiar with GDB for debugging, disassembly, and program reconstruction in Linux.

Introduction

Memory, Registers, and Simple Arithmetic

5 Lessons

Grasp the fundamentals of memory, registers, arithmetic operations, and their representations in assembly language.

Comparison Between Memory and Registers

Assigning Numbers to Memory and Register

Adding Numbers to Memory Cells

Incrementing and Decrementing Numbers

Multiplying Numbers

Code Optimization

3 Lessons

Go hands-on with debugging and optimizing code using GDB to enhance performance.

Number Representations

2 Lessons

Grasp the fundamentals of number systems, including decimal, ternary, binary, and hexadecimal.

Pointers

6 Lessons

Solve problems in using pointers for memory manipulation, arithmetic, incrementation, and multiplication in programming.

Bytes, Words, Double, and Quad Words

2 Lessons

Investigate memory granularity and layout in x64 Linux, focusing on bytes to quadwords.

Pointers to Memory

3 Lessons

Practice using pointers, their types, initialization, and debugging in memory management.

Logical Instructions and RIP

4 Lessons

Step through logical instructions, zeroing techniques, and the role of the Instruction Pointer.

Reconstructing a Program with Pointers

3 Lessons

Unpack the core of disassembling, reconstructing, and optimizing C/C++ code with pointers.

10.

Memory and Stacks

3 Lessons

Go hands-on with stacks in memory, function calls, and GDB debugging techniques.

11.

Frame Pointer and Local Variables

4 Lessons

Break down the steps to understand stack functionality, function prolog/epilog, and local variables.

12.

Function Parameters

2 Lessons

Solve problems in function parameter passing and stack memory analysis in x64 Linux systems.

13.

More Instructions

2 Lessons

Simplify complex topics of CPU flags, conditional jumps, and assembly instructions.

14.

Function Pointer Parameters

2 Lessons

Practice using function pointers in projects, dissembling with GDB, and enhancing debugging skills.

15.

Summary of Code Disassembly Patterns

1 Lessons

Break down key concepts in debugging, disassembly, and reversing for x64 Linux.

Summary of Code

x64 Debugging, Disassembly & Reversing Exam

Assessment

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Dmitry Vostokov

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