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ljagiello/ctf-pwn

Fornece técnicas de exploração binária para desafios CTF. Use quando você já tem um alvo nativo vulnerável ou serviço e precisa transformar corrupção de memória ou primitivas de baixo nível em execução de código ou escalonamento de privilégio, como estouros de buffer, strings de formato, bugs de heap, ROP, ret2libc, shellcode, exploração de kernel, bypass de seccomp, escape de sandbox ou cadeias de exploração Windows/Linux. Não use quando o principal obstáculo for entender o que o binário faz; use engenharia reversa primeiro. Não use para bugs puramente web, forense de disco ou pacotes, ou desafios isolados de criptografia/matemática.

O que é ctf-pwn?

Este skill especializado em exploração binária (pwn) é projetado para competições CTF, fornecendo um conjunto abrangente de técnicas para transformar vulnerabilidades de baixo nível em execução arbitrária de código ou escalonamento de privilégio. Ele cobre ataques clássicos como buffer overflow, format string, bugs de heap, ROP (Return-Oriented Programming), ret2libc, shellcode, além de técnicas avançadas como exploração de kernel, bypass de seccomp, escape de sandbox e cadeias de exploração para Windows e Linux. O skill é útil quando você já possui um alvo nativo vulnerável (binário ou serviço) identificado e precisa desenvolver um exploit funcional, mas não deve ser usado se o principal gargalo for a compreensão do binário — nesse caso, a engenharia reversa deve ser aplicada primeiro. Também não é adequado para desafios puramente web, forense de disco/pacotes ou problemas isolados de criptografia/matemática. O skill atua como um guia técnico e de boas práticas, ajudando o agente a escolher a abordagem correta e a implementar as etapas necessárias para obter execução de código.

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Documentação

O que ctf-pwn faz?

Fornece técnicas de exploração binária para desafios CTF. Use quando você já tem um alvo nativo vulnerável ou serviço e precisa transformar corrupção de memória ou primitivas de baixo nível em execução de código ou escalonamento de privilégio, como estouros de buffer, strings de formato, bugs de heap, ROP, ret2libc, shellcode, exploração de kernel, bypass de seccomp, escape de sandbox ou cadeias de exploração Windows/Linux. Não use quando o principal obstáculo for entender o que o binário faz; use engenharia reversa primeiro. Não use para bugs puramente web, forense de disco ou pacotes, ou desafios isolados de criptografia/matemática.

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-misc

Provides miscellaneous CTF challenge techniques for problems that do not cleanly fit the main categories. Use for encoding puzzles, pyjails, bash jails, RF/SDR, DNS oddities, unicode tricks, esoteric languages, QR or audio puzzles, constraint solving, game theory, unusual sandbox escapes, and hybrid logic puzzles. Prefer a more specific skill first when the challenge is mainly web, pwn, reverse, forensics, malware, OSINT, or crypto. Treat this as the fallback skill for genuine cross-category or edge-case challenges, not the default starting point.

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-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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