Ctf Category Agent Skill

CTF Category Router

Given a challenge file or description, identify the category, then read the matching wiki page and apply its methodology. Always file the artifact and read the prompt before choosing.

Fingerprint -> route

| Signal | Category | Wiki page | First moves / tools |

|---|---|---|---|

| ELF/PE binary + "get a shell" / nc to a port | pwn | [[binary-exploitation]] | checksec; find offset (cyclic); [[pwntools]] template; leak libc |

| Binary + "find the flag" / crackme / no network | rev | [[reverse-engineering]] | file,strings,checksec; [[radare2]]/Ghidra; ltrace; angr |

| n,e,c / .pem / cipher / "encrypt" / base-looking blob | crypto | [[cryptography-attacks]], [[crypto-ctf-workflow]] | identify primitive; RsaCtfTool; padding/XOR/hash-ext; CyberChef |

| .sol file / ABI+bytecode / contract address / web3 RPC endpoint | blockchain | [[smart-contract-web3-attacks]], [[defi-amm-exploitation]] | [[slither]] static analysis; Foundry/Hardhat local fork to reproduce; flash-loan/AMM economic-exploit sims for DeFi |

| .pcap / .raw memory / disk image / .E01 | forensics | [[digital-forensics]] | file,binwalk; [[volatility]] (mem); [[wiki/tools/tshark]]/Wireshark (pcap) |

| Innocuous image/audio / "look closer" | stego | [[steganography]] | exiftool,binwalk,strings; zsteg/steghide/stegseek; spectrogram |

| URL / web app | web | existing hunt skills | auto-triggers (sqli/xss/ssrf/idor/injection...) via triggers.json |

| Cloud creds/console (Azure TAP+SP, *.core.windows.net, AWS keys, GCP) - no ports, only a REST/console surface | cloud | [[cloud-moc]], [[cloud-iam-attacks]] | Skill(hunt-cloud): whoami; enumerate storage/SAS/blob + Key Vault (incl. prior secret versions) / IMDS - NOT the network-box driver |

| $hash / NTLM / shadow / zip2john | hash/crack | [[hash-capture-and-cracking]] | identify (hashid); [[wiki/tools/hashcat]] mode; [[password-cracking]] |

| "find the account/person/leak" / no file | osint | [[persona-tracing]], [[secret-hunting]], [[web-attack-surface]] | person pivots + photo geolocation; [[git-exposure]] for repos |

| python >>> jail / restricted shell / filtered interpreter | misc/jail | [[ctf-jail-escapes]] | builtins/mro recovery, format-string pyjail, GTFOBins rbash escape |

Procedure

• file challenge.*; read the prompt; note the remote (nc host port) if any.
• Match the strongest signal above (multiple may apply -> start with the most specific).
• qmd_query "<category> <specific tech>" -> read the wiki page; apply its methodology + payloads.
• Re-fingerprint every extracted artifact (stego/forensics nest: image -> zip -> binary).
• Flag found -> note the technique. Novel trick -> Wiki Feedback: update the category page so it is captured.

Self-heal

If a category page is missing or thin for the technique used, add a ## <technique> section (or stub the page) before moving on, so the gap fills. Pages: crypto/[[cryptography-attacks]], rev/[[reverse-engineering]], forensics/[[digital-forensics]], stego/[[steganography]], pwn/[[binary-exploitation]] + heap/[[heap-exploitation]], misc-jail/[[ctf-jail-escapes]].

Report: category chosen + flag/blocker + any wiki update.