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specialized-file-analyzer SKILL.md skillF

specialized-file-analyzer from gl0bal01/malware-analysis-claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add gl0bal01/malware-analysis-claude-skills/specialized-file-analyzer@git:20260905.e1d9a1a

Pins git:20260905.e1d9a1a in mdr.lock. Pin the fingerprint instead.

Audit grade: F, 15 of 17 checks passed
Kind: SKILL.md skill
Repository: gl0bal01/malware-analysis-claude-skills
Path: specialized-file-analyzer/SKILL.md
Versions recorded: 5
Latest version: git:20260905.e1d9a1a, committed Sep 5, 2026
First version recorded: Oct 27, 2025
Size: 42,398 bytes
Repository stars: 54
License: MIT

Analyze specialized file types beyond standard PE executables - .NET assemblies, Office macros, PDFs, PowerShell scripts, JavaScript, archives, HTA files, disk images (ISO/IMG/VHD/VHDX), and Linux ELF binaries. Use when you encounter documents, scripts, disk images, or non-Windows executables that require format-specific analysis tools and techniques. Claude runs the extraction and deobfuscation tooling on the host itself; nothing is executed.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Specialized File Analyzer

Expert analysis of non-PE file formats commonly used in malware campaigns: .NET, Office documents, PDFs, scripts, HTA files, disk images, archives, and Linux binaries.

## When to Use This Skill

Use this skill when analyzing:
- **.NET/C# assemblies** (.exe, .dll with .NET framework)
- **Office documents** with macros (.docm, .xlsm, .doc, .xls)
- **PDF files** (suspicious attachments, exploit documents)
- **Scripts** (PowerShell .ps1, VBScript .vbs, JavaScript .js)
- **HTA files** (.hta — HTML Applications executed by mshta.exe)
- **Disk images** (.iso, .img, .vhd, .vhdx — container formats that bypass MOTW)
- **Archives** (.zip, .rar, .7z, .tar.gz)
- **Shortcuts** (.lnk files)
- **Linux binaries** (ELF executables)
- **Batch files** (.bat, .cmd)

**Key indicator:** `file` command shows non-PE32 executable or document type.

## Execution Model

- **You run the commands.** Every `bash` block in this skill is for you to execute on the host, then read and interpret. Do not ask the user to run tools and paste output unless a tool is missing and cannot be installed.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add gl0bal01/malware-analysis-claude-skills/specialized-file-analyzer@sha256:6dc4127d458aafa2

The line at the top of this page pins the label git:20260905.e1d9a1a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_vkicvs2gdkg7u4py.svg)](https://markdownregistry.com/a/art_vkicvs2gdkg7u4py)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Oct 27, 2025 and Sep 5, 2026, about one every 78 days. Its first recorded version is graded A and its latest F.

version	committed	commit	size	audit
git:20260905.e1d9a1a latest	2026-09-05	e1d9a1a	42,398 B	F	view · diff
git:20260905.fd80b2a	2026-09-05	fd80b2a	42,003 B	F	view · diff
git:20260903.0eb8f5d	2026-09-03	0eb8f5d	33,899 B	F	view · diff
git:20260412.09f91e4	2026-04-12	09f91e4	33,898 B	F	view · diff
git:20251027.43cc347	2025-10-27	43cc347	19,594 B	A	view

Audit of the latest version

F 15 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

FAIL, critical: No text hidden with inline styles (matched: style="display:none)
fail: No script tag (matched: <script)
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (42398 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

gl0bal01/malware-analysis-claude-skills · 54 stars · license MIT · pushed 2026-09-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_vkicvs2gdkg7u4py
GET https://markdownregistry.com/api/v1/resolve?ref=gl0bal01/malware-analysis-claude-skills/specialized-file-analyzer
GET https://markdownregistry.com/api/v1/blob/6dc4127d458aafa29674a2510a61406ce7d5a5ed5fe484b951994cf8ed396960

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.