Kctf Windows Crackme Chain

Workflow

1. Classify the file: PE/EXE, packed EXE, SMC loader, or plain crackme.
2. Identify the gate chain:
   • serial / checksum / RSA / lookup
   • self-modifying stages
   • anti-debug / anti-breakpoint
   • Feistel / finite-field / polynomial gates
3. Strip the fake path first; recover the real checker or decrypted code.
4. Separate independent gates and solve the cheapest one first.
5. Verify with a replay input before trusting the algebra.
6. Keep the final key/serial reproducible as a command line, not just a pasted value.

References

• references/corpus-map.md for case routing.
• Combine with kctf-ml-backdoor-linear when the challenge is a model/backdoor puzzle.