ljagiello/ctf-skills · ctf-malware/SKILL.md

ctf-malware skillA

ctf-malware is agent-read markdown (skill) from ljagiello/ctf-skills: 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 indic.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add ljagiello/ctf-skills/ctf-malware@git:20260912.61c2efe
Exact content
mdr add ljagiello/ctf-skills/ctf-malware@sha256:890e9eb7903a8bc8

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_mqtrws6az2romwtb.svg)](https://markdownregistry.com/a/art_mqtrws6az2romwtb)

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Versions

versioncommittedcommitsizeaudit
git:20260912.61c2efe latest2026-09-12 61c2efe 8,392 BA view · diff
git:20260403.008fb992026-04-03 008fb99 8,379 BA view · diff
git:20260328.8d978f12026-03-28 8d978f1 7,950 BA view · diff
git:20260327.40100a92026-03-27 40100a9 7,369 BA view · diff
git:20260327.62aa5ea2026-03-27 62aa5ea 6,997 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (8392 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 text hidden with inline styles
  • 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
  • pass: No script tag

Source

GitHub

ljagiello/ctf-skills · 3,261 stars · license MIT · pushed 2026-09-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_mqtrws6az2romwtb
GET https://markdownregistry.com/api/v1/resolve?ref=ljagiello/ctf-skills/ctf-malware
GET https://markdownregistry.com/api/v1/blob/890e9eb7903a8bc8de33cd4d410c12ed4814c57b6853c3910e6956cf5098ae5a