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ljagiello/ctf-misc

Proporciona técnicas misceláneas para desafíos CTF que no encajan claramente en las categorías principales. Útil para puzzles de codificación, pyjails, bash jails, RF/SDR, rarezas de DNS, trucos Unicode, lenguajes esotéricos, puzzles de QR o audio, resolución de restricciones, teoría de juegos, escapes de entornos controlados inusuales y puzzles híbridos de lógica. Prioriza una habilidad más específica cuando el desafío sea principalmente web, pwn, reverse, forensics, malware, OSINT o crypto. Trata esta como la habilidad de respaldo para desafíos genuinamente entre categorías o en casos extremos, no como el punto de partida predeterminado.

¿Qué es ctf-misc?

Esta habilidad, ljagiello/ctf-misc, es un recurso flexible diseñado para manejar desafíos CTF (Capture The Flag) que no encajan en las categorías tradicionales como web, pwn, reverse, forensics, malware, OSINT o crypto. Su propósito principal es servir como herramienta de respaldo para problemas híbridos o de casos extremos, como puzzles de codificación (base64, XOR, etc.), entornos controlados de Python (pyjails) o Bash (bash jails), manipulación de RF/SDR, rarezas en DNS, trucos con Unicode, lenguajes esotéricos (Brainfuck, Malbolge), puzzles de QR o audio, resolución de restricciones con SAT/SMT, teoría de juegos, o escapes de sandboxes inusuales. La habilidad está diseñada para ser utilizada en plataformas que soporten agentes de IA como Claude Code, Cursor o Codex, y su documentación (SKILL.md) proporciona un enfoque metódico para identificar y resolver problemas atípicos. Es útil porque amplía la cobertura de un asistente de IA más allá de los dominios comunes, permitiendo abordar desafíos creativos o poco convencionales sin depender de habilidades especializadas. Sin embargo, se recomienda priorizar habilidades más específicas cuando el desafío encaje claramente en una categoría principal, utilizando esta solo como último recurso para garantizar eficiencia.

Compatible con~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/ljagiello/ctf-skills/tree/main/skills/ctf-misc

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Documentación

¿Qué hace ctf-misc?

Proporciona técnicas misceláneas para desafíos CTF que no encajan claramente en las categorías principales. Útil para puzzles de codificación, pyjails, bash jails, RF/SDR, rarezas de DNS, trucos Unicode, lenguajes esotéricos, puzzles de QR o audio, resolución de restricciones, teoría de juegos, escapes de entornos controlados inusuales y puzzles híbridos de lógica. Prioriza una habilidad más específica cuando el desafío sea principalmente web, pwn, reverse, forensics, malware, OSINT o crypto. Trata esta como la habilidad de respaldo para desafíos genuinamente entre categorías o en casos extremos, no como el punto de partida predeterminado.

Individual skills in this repo

This repo contains 10 individual skills — each has its own dedicated page.

ljagiello/ctf-ai-ml

Provides AI and machine learning techniques for CTF challenges. Use when attacking ML models, crafting adversarial examples, performing model extraction, prompt injection, membership inference, training data poisoning, fine-tuning manipulation, neural network analysis, LoRA adapter exploitation, LLM jailbreaking, or solving AI-related puzzles.

ljagiello/ctf-crypto

Provides cryptography attack techniques for CTF challenges. Use when attacking encryption, hashing, signatures, ZKP, PRNG, or mathematical crypto problems involving RSA, AES, ECC, lattices, LWE, CVP, number theory, Coppersmith, Pollard, Wiener, padding oracle, GCM, key derivation, or stream/block cipher weaknesses.

ljagiello/ctf-forensics

Provides digital forensics and signal analysis techniques for CTF challenges. Use when analyzing disk images, memory dumps, event logs, network captures, cryptocurrency transactions, steganography, PDF analysis, Windows registry, Volatility, PCAP, Docker images, coredumps, side-channel power traces, DTMF audio spectrograms, packet timing analysis, CD audio disc images, or recovering deleted files and credentials.

ljagiello/ctf-malware

Provides malware analysis and network traffic techniques for CTF challenges. Use when analyzing obfuscated scripts, malicious packages, custom crypto protocols, C2 traffic, PE/.NET binaries, RC4/AES encrypted communications, YARA rules, shellcode analysis, memory forensics for malware (Volatility malfind, process injection detection), anti-analysis techniques (VM/sandbox detection, timing evasion, API hashing, process injection, environment checks), or extracting malware configurations and indicators of compromise.

ljagiello/ctf-osint

Provides open source intelligence techniques for CTF challenges. Use when gathering information from public sources, social media, geolocation, DNS records, username enumeration, reverse image search, Google dorking, Wayback Machine, Tor relays, FEC filings, or identifying unknown data like hashes and coordinates.

ljagiello/ctf-pwn

Provides binary exploitation techniques for CTF challenges. Use when you already have a vulnerable native target or service and need to turn memory corruption or low-level primitives into code execution or privilege escalation, such as buffer overflows, format strings, heap bugs, ROP, ret2libc, shellcode, kernel exploitation, seccomp bypass, sandbox escape, or Windows/Linux exploit chains. Do not use it when the main blocker is understanding what the binary does; use reverse engineering first. Do not use it for pure web bugs, disk or packet forensics, or standalone crypto/math challenges.

ljagiello/ctf-reverse

Provides reverse engineering techniques for CTF challenges. Use when the main job is to understand how a compiled, obfuscated, packed, or virtualized target works before exploiting or solving it, including binaries, APKs, WASM, firmware, custom VMs, bytecode, game clients, malware-like loaders, and anti-debug or anti-analysis logic. Do not use it when the vulnerability is already understood and the remaining task is exploitation; use pwn instead. Do not use it for pure web workflows, log or disk forensics, or standalone crypto problems unless reversing the implementation is the real blocker.

ljagiello/ctf-web

Provides web exploitation techniques for CTF challenges. Use when the target is primarily an HTTP application, API, browser client, template engine, identity flow, or smart-contract frontend/backend surface, including XSS, SQLi, SSTI, SSRF, XXE, JWT, auth bypass, file upload, request smuggling, OAuth/OIDC, SAML, prototype pollution, and similar web bugs. Do not use it for native binary memory corruption, reverse engineering of standalone executables, disk or memory forensics, or pure cryptanalysis unless the web flaw is still the main path to the flag.

ljagiello/ctf-writeup

Generates a single standardized submission-style CTF writeup for competition handoff and organizer review. Use after solving a CTF challenge to document the solution steps, tools used, and lessons learned in a structured format.

ljagiello/solve-challenge

Solves CTF challenges by performing first-pass triage, identifying the dominant category, and routing execution to the right specialized ctf-* skill. Use when the user gives you a challenge bundle, a remote service, a suspicious file, or only a vague challenge description and you must determine where to start. Do not use it when the category is already clear and a specialized skill can be invoked directly; this is the dispatcher and recon entrypoint, not the deepest reference for category-specific techniques.

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