pentest-ctf-forensics

pentest-ctf-forensics is a skill for Claude Code, Codex from jd-opensource/JoySafeter. It costs 26 tokens per session (220 once invoked), scanned A, original, Apache-2.0.

A digital-forensics guide for examining files, memory dumps, network captures, images, and disk images, including hidden-data analysis.

In plain words
What is it for?
It is for analyzing metadata and strings, extracting steganographic data, reviewing PCAP network captures, examining memory, and recovering embedded or deleted files.
Why use it?
It helps investigators find concealed information, suspicious network activity, deleted files, and evidence of malicious code.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for analyzing metadata and strings, extracting steganographic data, reviewing PCAP network captures, examining memory, and recovering embedded or deleted files.

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Install with agentmods
npx agentmods add skills/jd-opensource/joysafeter/pentest-ctf-forensics
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add jd-opensource/JoySafeter --skill pentest-ctf-forensics
Clone the repo
git clone --depth 1 https://github.com/jd-opensource/JoySafeter

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for pentest-ctf-forensics

README.md
[![agentmods](https://agentmods.dev/badge/skills/jd-opensource/joysafeter/pentest-ctf-forensics/github.svg)](https://agentmods.dev/skills/jd-opensource/joysafeter/pentest-ctf-forensics)
Your own site
<a href="https://agentmods.dev/skills/jd-opensource/joysafeter/pentest-ctf-forensics"><img src="https://agentmods.dev/badge/skills/jd-opensource/joysafeter/pentest-ctf-forensics/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for pentest-ctf-forensics

Your own site · 80×15
<a href="https://agentmods.dev/skills/jd-opensource/joysafeter/pentest-ctf-forensics"><img src="https://agentmods.dev/badge/skills/jd-opensource/joysafeter/pentest-ctf-forensics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 220 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00026 $0.00220
Opus 5.5 $0.00010 $0.00088
Sonnet 5.5 $0.00005 $0.00044
Haiku 4.5 $0.00003 $0.00022

Measured 1mo ago against content hash 460c52440850, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pentest-ctf-forensics scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/pentest-ctf-forensics/SKILL.md · 21 lines

What it actually says

Pentest CTF Forensics

Purpose

Extract hidden information from various artifacts: memory dumps, network captures (PCAP), images, and disk images.

Core Workflow

  1. File Analysis: Identify file type, metadata, and embedded strings using file, exiftool, and strings.
  2. Steganography: Detect and extract hidden data in images/audio using steghide and stegsolve.
  3. Network Forensics: Analyze PCAP files for suspicious traffic and flag transmission using wireshark or tshark.
  4. Memory Forensics: Analyze memory dumps for processes, connections, and injected code using volatility.
  5. Data Extraction: Carve files and recover deleted data using foremost and binwalk.

References

  • references/tools.md
  • references/workflows.md
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 21 lines · 26 tokens per session scan A 460c52440850

Subscribe to this mod's changes

pentest-ctf-forensics is a skill published in the GitHub repository jd-opensource/JoySafeter (315 stars, last pushed 3d ago), licensed Apache-2.0. It adds 26 tokens to every session and 220 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.