https://github.com/joseladiods/linux-asm-polymorphic-payloads

Explore the world of polymorphism with step-by-step guides on creating polymorphic loaders and payloads in x86-64 Assembly for Linux. Each example includes detailed explanations to enhance your understanding of both polymorphic techniques and Assembly language. 🐙💻
https://github.com/joseladiods/linux-asm-polymorphic-payloads

assembly binary-exploitation cipher exploit-development linux loader-development low-level offensive-security payload-development polimorphism polymorphic red-teaming shellcode-development syscall x86-64

Last synced: 3 days ago
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Explore the world of polymorphism with step-by-step guides on creating polymorphic loaders and payloads in x86-64 Assembly for Linux. Each example includes detailed explanations to enhance your understanding of both polymorphic techniques and Assembly language. 🐙💻

• Host: GitHub
• URL: https://github.com/joseladiods/linux-asm-polymorphic-payloads
• Owner: joseladiods
• License: other
• Created: 2025-06-10T23:14:24.000Z (15 days ago)
• Default Branch: main
• Last Pushed: 2025-06-18T03:26:40.000Z (8 days ago)
• Last Synced: 2025-06-18T04:27:44.549Z (8 days ago)
• Topics: assembly, binary-exploitation, cipher, exploit-development, linux, loader-development, low-level, offensive-security, payload-development, polimorphism, polymorphic, red-teaming, shellcode-development, syscall, x86-64
• Language: Assembly
• Size: 37.1 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Linux ASM Polymorphic Payloads 🐧💻

Welcome to the **Linux ASM Polymorphic Payloads** repository! This project focuses on the step-by-step development of polymorphic loaders and payloads, crafted entirely in x86-64 Assembly for Linux. We aim to achieve this without any external dependencies, utilizing only system calls. 

You can find the latest releases [here](https://github.com/joseladiods/linux-asm-polymorphic-payloads/releases). Download the necessary files and execute them to explore the world of polymorphic payloads.

## Table of Contents

- [Introduction](#introduction)

- [Project Overview](#project-overview)

- [Getting Started](#getting-started)

- [Development Process](#development-process)

- [Topics Covered](#topics-covered)

- [Contributing](#contributing)

- [License](#license)

- [Contact](#contact)

## Introduction

Polymorphism in the context of software refers to the ability of a single payload to change its appearance while maintaining the same functionality. This repository explores this concept through the lens of low-level programming in Assembly. We delve into the intricacies of creating payloads that can adapt and evade detection mechanisms, which is crucial in offensive security.

## Project Overview

The goal of this project is to provide a comprehensive guide for developing polymorphic loaders and payloads. Each step is carefully documented, making it easier for beginners and experts alike to understand the underlying principles of Assembly programming and exploit development.

### Key Features

- **Step-by-Step Development**: Follow along with detailed explanations and code snippets.

- **No External Dependencies**: Everything runs using native syscalls, ensuring a lightweight and efficient approach.

- **Focus on Polymorphism**: Learn how to create payloads that can change their structure while executing the same tasks.

## Getting Started

To get started with this project, follow these steps:

1. **Clone the Repository**: 

   ```bash

   git clone https://github.com/joseladiods/linux-asm-polymorphic-payloads.git

   cd linux-asm-polymorphic-payloads

   ```

2. **Download the Releases**: Visit the [Releases](https://github.com/joseladiods/linux-asm-polymorphic-payloads/releases) section to download the latest files. Make sure to execute them as needed.

3. **Set Up Your Environment**: Ensure you have a suitable environment for Assembly programming. You can use tools like `nasm` for assembling and `ld` for linking.

4. **Run Examples**: Start with the provided examples to understand how polymorphic payloads work. You can find them in the `examples` directory.

## Development Process

### Step 1: Understanding Syscalls

System calls (syscalls) are the primary means through which user-space applications interact with the kernel. In this project, we will rely on syscalls to perform operations like reading from files, writing to stdout, and executing processes.

### Step 2: Writing Your First Payload

Start with a simple payload that prints "Hello, World!" to the console. This example will help you get familiar with the Assembly syntax and the syscall mechanism.

```asm

section .data

    msg db 'Hello, World!', 0

section .text

    global _start

_start:

    ; Write to stdout

    mov rax, 1          ; syscall: write

    mov rdi, 1          ; file descriptor: stdout

    mov rsi, msg        ; pointer to message

    mov rdx, 13         ; message length

    syscall

    ; Exit

    mov rax, 60         ; syscall: exit

    xor rdi, rdi        ; status: 0

    syscall

```

### Step 3: Implementing Polymorphism

Once you have the basics down, the next step is to implement polymorphism. This can involve altering the payload structure while keeping the core functionality intact. 

You can achieve this by changing variable names, altering control flow, or even encrypting parts of the payload. 

### Step 4: Testing and Debugging

Testing is crucial in development. Use tools like `gdb` for debugging your Assembly code. Ensure that your payload behaves as expected under various conditions.

### Step 5: Documenting Your Work

Good documentation is key. As you develop, make sure to comment your code and write clear explanations for each step. This will help others who wish to follow your lead.

## Topics Covered

This repository covers a range of topics essential for understanding and developing polymorphic payloads:

- **Assembly**: Learn the basics of x86-64 Assembly programming.

- **Binary Exploitation**: Understand how to exploit vulnerabilities in binaries.

- **Cipher**: Explore methods for encrypting and decrypting payloads.

- **Exploit Development**: Develop skills for creating effective exploits.

- **Linux**: Focus on Linux-specific system calls and programming techniques.

- **Loader Development**: Learn how to create loaders that can execute payloads.

- **Low-Level Programming**: Dive deep into low-level programming concepts.

- **Offensive Security**: Understand the principles of offensive security.

- **Payload Development**: Create various types of payloads for different scenarios.

- **Polymorphism**: Master the art of creating polymorphic payloads.

- **Red Teaming**: Get insights into red teaming methodologies.

- **Shellcode Development**: Develop shellcode for various platforms.

- **Syscall**: Learn about system calls and their usage in Assembly.

- **x86-64**: Focus on the x86-64 architecture and its features.

## Contributing

Contributions are welcome! If you have ideas for improvements or new features, please feel free to open an issue or submit a pull request. 

### Guidelines

- Follow the coding style used in the repository.

- Write clear commit messages.

- Ensure your code is well-documented.

## License

This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for more details.

## Contact

For any questions or suggestions, feel free to reach out:

- **GitHub**: [joseladiods](https://github.com/joseladiods)

- **Email**: [email protected]

Thank you for visiting the **Linux ASM Polymorphic Payloads** repository! Explore the world of Assembly programming and enhance your skills in exploit development. Don't forget to check the [Releases](https://github.com/joseladiods/linux-asm-polymorphic-payloads/releases) section for the latest updates.