ctf-rev
ctf-rev guides you through reverse engineering CTF challenges using structured methodologies for program comprehension. Learn to identify critical code paths, trace input transformations, recognize standard algorithms, and extract hidden flags through static analysis, dynamic observation, or hybrid approaches tailored to each challenge type.
ctf-rev helps you solve CTF reverse engineering challenges by systematically analyzing program logic to extract flags and keys.
AI-generated summary based on this skill's SKILL.md
Install
cyberkaida/reverse-engineering-assistant/ctf-rev · repository language: Java
git clone https://github.com/cyberkaida/reverse-engineering-assistant
cp -r reverse-engineering-assistant/ReVa/skills/ctf-rev ~/.claude/skills/ctf-revnpx skillfed install cyberkaida/reverse-engineering-assistant/ctf-revFrequently asked questions
AI-generated answers based on this skill's SKILL.md and metadata
How do I solve CTF reverse engineering challenges?
ctf-rev teaches structured methodologies for program comprehension in CTF challenges. Start by identifying critical code paths through static analysis, trace how input transforms through the program, recognize standard algorithms (AES, RC4, hashing), and extract flags using hybrid approaches combining static disassembly with dynamic debugging. The skill guides you through each challenge type systematically.
What techniques does ctf-rev cover for binary analysis?
ctf-rev covers static analysis (disassembly, decompilation), dynamic analysis (breakpoint debugging, runtime observation), and hybrid approaches. You'll learn to recognize obfuscation patterns, trace data flow through validation logic, identify anti-debug techniques, and extract passwords or keys from compiled programs by understanding transformation algorithms and constraint solving methods.
How can I extract a password from a compiled program?
ctf-rev teaches password extraction by combining static and dynamic analysis. Disassemble the binary to locate validation routines, use breakpoints to observe runtime behavior, trace how input is transformed and compared, recognize encoding or cryptographic schemes, and apply constraint solving or brute-force techniques against the keyspace to bypass or solve validation logic.
Can ctf-rev help me reverse engineer obfuscated code to find flags?
Yes. ctf-rev guides you through deobfuscation methods and pattern recognition for cryptographic algorithms. You'll learn to recognize standard implementations (AES, RC4, hashes), trace data flow through obfuscated sections, identify hidden code paths, and extract flags by understanding the underlying transformation logic beneath obfuscation layers.
What does ctf-rev teach about algorithm recovery?
ctf-rev teaches algorithm recovery through static disassembly and dynamic observation. You'll learn to recognize standard cryptographic and encoding schemes, trace input-output relationships to infer transformation logic, identify custom implementations, and apply pattern recognition to recover keys, serial numbers, or validation algorithms embedded in challenge binaries.
How does ctf-rev approach anti-debug and constraint solving?
ctf-rev covers anti-debug bypass techniques and constraint solving strategies. Learn to identify anti-debug checks, bypass them through patching or alternative analysis methods, trace validation constraints, apply brute-force techniques against derived keyspaces, and solve key derivation logic to extract flags or credentials from protected binaries.
SKILL.md
rendered from the published skill — quoted content, verbatim
CTF Reverse Engineering
Purpose
You are a CTF reverse engineering solver. Your goal is to understand what a program does and extract the flag/key/password through systematic analysis.
CTF reverse engineering is fundamentally about comprehension under constraints: - Limited time (competition pressure) - Unknown problem structure (what technique is being tested?) - Minimal documentation (that's the challenge!) - Goal-oriented (find the flag, not perfect understanding)
Unlike malware analysis or vulnerability research, CTF reversing tests your ability to: 1. Quickly identify the core challenge (crypto? obfuscation? algorithm recovery?) 2. Trace critical data flow (where does input go? how is it validated?) 3. Recognize patterns (standard algorithms, common tricks) 4. Adapt your approach (static vs dynamic, top-down vs bottom-up)
Conceptual
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ReVa/skills/ctf-rev/SKILL.md
ReVa/skills/ctf-rev/patterns.md