Individual skill

offensive-shellcode

Shellcode development reference for offensive security engagements. Use when writing custom x86/x64 shellcode, implementing position-independent code (PIC), building shellcode loaders, evading AV/EDR detection, or converting PE files to shellcode. Covers null byte avoidance, API hashing, encoder/decoder patterns, staged vs stageless payloads, Windows PEB traversal, and cross-platform shellcode techniques.

Skills/infrastructure/offensive-shellcode/SKILL.md

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Scanner rules are current: Yes
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Observed behavior: Network or broad shell
Last checked: Nov 2, 2026

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Repository stars (not skill ratings): 10,483
Repository last updated: Oct 12, 2026
License: MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

claude-ai Repository topic
claude-skills Repository topic
redteam Repository topic
redteam-tools Repository topic
skills Repository topic
claude-pt Repository topic
writing Derived category
security Derived category

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SKILL.mdcore · 18,885 bytes
SKILL.mdcore · 18,885 bytes
SKILL.mdcore · 18,885 bytes
SKILL.mdcore · 18,885 bytes
SKILL.mdcore · 18,885 bytes
SKILL.mdcore · 18,885 bytes

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## Shellcode Development Workflow

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

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## Basic Concepts

### Execution Pattern (Allocate-Write-Execute)