KCTF AntiAI State Machine

SkillWeb & browsing

Guides your agent through solving Windows crackmes that hide validation in state machines and anti-debugger checks.

Available today. Use it from your connected AI after setup.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use the KCTF AntiAI State Machine skill

About this skill

Solve KCTF AntiAI and anti-analysis crackmes with fixed-length inputs, hidden state buffers, debugger checks, and staged integer recovery. Use for Windows executables that gate on a small state machine, checksum, or integrity path rather than a flat serial.

What this skill tells your AI

The instructions your AI receives, as published by manyuegong33/r0crawl_skills in skills/kctf-antiai-state-machine/SKILL.md and read by ahel’s review.

Workflow

  1. Record file type, bitness, entrypoint, imports, and the exact prompt/output strings.
  2. Check whether the binary hides validation in a state buffer, a helper section, or a debugger gate.
  3. Validate on:
    • empty input
    • wrong-length input
    • one representative sample
  4. Recover the state transition before attempting brute force.
  5. Keep the raw input, state dump, and recovered output separate.

Use this pattern

  • fixed-length input
  • IsDebuggerPresent / integrity / anti-analysis checks
  • small hidden state vector
  • final yes/no or success/fail gate

Reference

  • references/pattern.md

Signals

GitHub stars
285
Forks
100
Last commit
Sep 2026
Advanced
Catalog kind
skill
Key
kctf-antiai-state-machine
Source
github.com/manyuegong33/r0crawl_skills