ctf-forensics

Recover hidden CTF flags from disk images, memory dumps, and PCAPs.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/3xecutablefile/opencode-rev-forensics --skill ctf-forensics-3xecutablefile
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ctf-forensics
Source: https://github.com/3xecutablefile/opencode-rev-forensics/tree/main/skills/ctf-forensics
Command: npx skills add https://github.com/3xecutablefile/opencode-rev-forensics --skill ctf-forensics-3xecutablefile

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill removes the guesswork of forensic CTF triage by turning messy evidence (disk images, memory dumps, PCAPs, and embedded artifacts) into repeatable decoding steps that lead to flags.

Core Features & Use Cases

  • Rapid evidence triage: identify file types by magic bytes, extract embedded objects, and locate likely flag-containing regions across disk, memory, and logs.
  • Disk & memory recovery: mount or carve disk images, use Volatility, and recover deleted/orphaned data with filesystem-aware techniques.
  • Network & signal forensics: decode covert channels, decrypt captured traffic when keys are available, and reconstruct peripheral/device streams from PCAP.

Quick Start

Ask the Skill for a forensic plan for the attached evidence file, specifying whether it is a disk image, memory dump, or PCAP, and request the shortest command-and-decision workflow to extract likely flag artifacts.

Frequently Asked Questions about ctf-forensics

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I recover hidden flags from memory dumps and disk images?

You can recover hidden flags from memory dumps and disk images by applying digital forensics techniques like Volatility-based memory analysis, filesystem-aware carving, and extracting embedded objects based on magic bytes. This Skill provides repeatable decoding steps to locate likely flag-containing regions.

What is the best way to decrypt PCAP traffic and decode covert channels?

Decrypting PCAP traffic and decoding covert channels involves parsing captured network data and applying decryption when keys are available. This process reconstructs peripheral and device streams, turning messy network evidence into decoded artifacts for flag recovery.

Can I extract embedded files from disk images using Python and bash?

Yes, you can extract embedded files from disk images using a filesystem-based agent with bash and Python 3. The workflow supports identifying file types by magic bytes, mounting or carving disk images, and recovering deleted or orphaned data.

How do I get started with CTF triage for an unknown evidence file?

To start CTF triage, ask for a forensic plan for the attached evidence file, specifying whether it is a disk image, memory dump, or PCAP. The workflow will provide the shortest command-and-decision sequence to extract likely flag artifacts.

Does steganography analysis work for recovering CTF flags from signal artifacts?

Steganography analysis is supported for recovering CTF flags from signal artifacts and embedded files. The Skill applies digital forensics techniques to decode common covert and encoding channels hidden within various evidence types.