Kctf Windows Crackme Chain
SkillWeb & browsingGuides your agent through solving Windows crackme challenges with layered key checks and self-modifying code.
Available today. Use it from your connected AI after setup.
No other account needed.
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 Windows Crackme Chain skill
About this skill
Solve Windows KCTF crackmes with chained checks, RSA gates, lookup tables, SMC loaders, anti-debug, and Feistel-style math. Use when the artifact is a Windows EXE with Key/verify prompts, layered validation, or self-modifying code.
What this skill tells your AI
The instructions your AI receives, as published by manyuegong33/r0crawl_skills in skills/kctf-windows-crackme-chain/SKILL.md and read by ahel’s review.
Workflow
- Classify the file: PE/EXE, packed EXE, SMC loader, or plain crackme.
- Identify the gate chain:
- serial / checksum / RSA / lookup
- self-modifying stages
- anti-debug / anti-breakpoint
- Feistel / finite-field / polynomial gates
- Strip the fake path first; recover the real checker or decrypted code.
- Separate independent gates and solve the cheapest one first.
- Verify with a replay input before trusting the algebra.
- Keep the final key/serial reproducible as a command line, not just a pasted value.
References
references/corpus-map.mdfor case routing.- Combine with
kctf-ml-backdoor-linearwhen the challenge is a model/backdoor puzzle.
Signals
- GitHub stars
- 285
- Forks
- 100
- Last commit
- Sep 2026
Advanced
- Catalog kind
- skill
- Key
kctf-windows-crackme-chain- Source
- github.com/manyuegong33/r0crawl_skills