Offensive Shellcode

by SnailSploit

Offensive Shellcode is an Automation skill for Claude Code, published by SnailSploit in Claude-Red.

2.9K stars479 forkson SnailSploit/Claude-RedAdded 2026/08/17+1% in starsRepository updated 2026/05/08

View source on GitHub Download repo ZIP

claude-aiclaude-ptclaude-skillsredteamredteam-toolsskills

Install in seconds

Install Offensive Shellcode

Copy Offensive Shellcode into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/SnailSploit/Claude-Red/tree/main/Skills/infrastructure/offensive-shellcode ~/.claude/skills/offensive-shellcode

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/SnailSploit/Claude-Red.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: Skills/infrastructure/offensive-shellcode/SKILL.md in SnailSploit/Claude-Red
Installs to: ~/.claude/skills/offensive-shellcode
Collection: One of 25 skills cataloged from this repository
Category: Automation — 1523 skills

What Offensive Shellcode does

Offensive Shellcode provides a reference for developing custom shellcode, loaders, and evasion techniques for offensive security engagements. Use when writing x86/x64 shellcode, implementing position-independent code, or evading AV/EDR.

Offensive Shellcode is cataloged under Automation on DirSkills. Offensive Shellcode comes from a repository tagged claude-ai, claude-pt, claude-skills, redteam and redteam-tools.

Documentation

README

Excerpt

Shellcode Development Workflow

Define concept and target platform (x86/x64, Windows/Linux/macOS)
Write assembly using position-independent techniques
Extract binary and test in controlled environment
Apply null byte avoidance and optimizations
Encode/encrypt to evade static detection
Package with loader and choose delivery method

Basic Concepts

Execution Pattern (Allocate-Write-Execute)

Avoid direct PAGE_EXECUTE_READWRITE — prefer:

Allocate with PAGE_READWRITE
Write shellcode to allocated region
Call VirtualProtect to switch to PAGE_EXECUTE_READ

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Offensive Shellcode

What else does SnailSploit publish alongside Offensive Shellcode?
Offensive Shellcode is one of 25 skills that DirSkills catalogs from SnailSploit/Claude-Red, the repository it ships in. Its siblings there include AI Pentest, Advanced Red Team Ops and Basic Exploitation. Each one is a separate skill with its own page in this directory, installs the same way Offensive Shellcode does, and is maintained by SnailSploit in that same repository. The rest of the collection is listed on the SnailSploit/Claude-Red page.
How does Offensive Shellcode compare to other Automation skills?
Offensive Shellcode ranks #421 by stars among the 1523 Automation skills in this catalog. The most-starred ones next to it are Autonomous Loops, Autonomous Agent Harness and Automation Audit Ops. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Offensive Shellcode against them. Open each page to compare what they document and how they install.