Shellcode Generator

Generate position-independent, null-free shellcode for Linux, Windows, ARM, and MIPS architectures.

Updated Aug 6, 2026
One-click install
npx skills add https://github.com/alicangnll/Spectra --skill shellcode-generator
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Shellcode Generator
Source: https://github.com/alicangnll/Spectra/tree/main/spectra/skills/builtins/shellcode-generator
Command: npx skills add https://github.com/alicangnll/Spectra --skill shellcode-generator

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the need for automatically generating shellcode with minimal manual effort, ensuring it is position-independent and free of null bytes, while supporting multiple architectures and platforms.

Core Features & Use Cases

  • Automatic Shellcode Generation: Generates shellcode for Linux, Windows, and other platforms with support for x86, x64, ARM, and MIPS architectures.
  • Position-Independent: Ensures shellcode does not rely on hardcoded addresses, making it more versatile.
  • Null-Free: Eliminates null bytes to prevent issues during execution.
  • Compact and Reliable: Optimizes shellcode size while ensuring reliability across different versions.
  • Use Case: Ideal for security professionals and reverse engineers who need to quickly generate shellcode for various exploitation scenarios.

Quick Start

Generate shellcode for a Linux x64 system to execute "/bin/sh" using the shellcode generator skill.

Frequently Asked Questions about Shellcode Generator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate position-independent shellcode for multiple architectures?

Generate position-independent shellcode for Linux, Windows, ARM, and MIPS by specifying the target architecture and platform. The output is compact, relies on no hardcoded addresses, and executes reliably across different versions.

Why does shellcode need to be null-free and position-independent?

Null-free shellcode prevents string functions from truncating execution payloads during exploitation. Position-independent code avoids hardcoded addresses, allowing the shellcode to execute regardless of where it is injected into memory.

Can I generate shellcode for both Linux and Windows platforms?

Yes, shellcode generation supports both Linux and Windows platforms. It includes support for multiple system calls and APIs tailored to the specific target operating system and architecture.

What is the best way to automatically generate compact shellcode for reverse engineering?

Automatically generate compact shellcode optimized for size by using the generator to minimize manual assembly effort. This ensures reliable payloads suitable for vulnerability assessment and reverse engineering tasks.

Does shellcode generation support ARM and MIPS architectures?

Shellcode generation explicitly supports ARM and MIPS architectures alongside x86 and x64. This allows security professionals to create payloads for diverse target environments and hardware platforms.

How do I generate shellcode to execute a specific command like /bin/sh?

Generate shellcode for a Linux x64 system to execute "/bin/sh" by providing the command string to the generator. The skill outputs the corresponding null-free binary payload for your exploitation scenario.