ctf-malware SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
ctf-malware from naravid19/claude-ctf-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add naravid19/claude-ctf-skills/ctf-malware@git:20261024.8f9bd65Pins git:20261024.8f9bd65 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- naravid19/claude-ctf-skills
- Path
skills/ctf-malware/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261024.8f9bd65, committed Oct 24, 2026
- First version recorded
- Sep 8, 2026
- Size
- 9,065 bytes
- Repository stars
- 4
- License
- MIT
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…
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
# CTF Malware & Network Analysis Quick reference for malware analysis CTF challenges. Each technique has a one-liner here; see supporting files for full details with code. ## Prerequisites **Python packages (all platforms):** ```bash pip install yara-python pefile capstone oletools unicorn pycryptodome \ volatility3 dissect.cobaltstrike ``` **Linux (apt):** ```bash apt install strace ltrace tshark binwalk binutils ``` **macOS (Homebrew):** ```bash brew install wireshark binwalk binutils ghidra ``` **Manual install:** - dnSpy — [GitHub](https://github.com/dnSpy/dnSpy), .NET decompiler (Windows) **MCP servers (optional):** IDA Pro MCP / Ghidra MCP (unpacking, config extraction), WinDbg MCP ([svnscha/mcp-windbg](https://github.com/svnscha/mcp-windbg)) for dynamic analysis, JADX MCP for Android — see [tools-mcp.md](tools-mcp.md). Run malware only in an isolated, disposable VM. ## Additional Resources …
Read the whole file at its exact version.
How to install
mdr add naravid19/claude-ctf-skills/ctf-malware@sha256:505684318d0d7e5bThe line at the top of this page pins the label git:20261024.8f9bd65, 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.
[](https://markdownregistry.com/a/art_zuysbhgr7aet7a7n)
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Versions
The registry has recorded 3 versions of this file, between Sep 8, 2026 and Oct 24, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261024.8f9bd65 latest | 2026-10-24 | 8f9bd65 | 9,065 B | A | view · diff |
| git:20260927.84043a0 | 2026-09-27 | 84043a0 | 8,392 B | A | view · diff |
| git:20260908.0cdca9b | 2026-09-08 | 0cdca9b | 8,379 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9065 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
naravid19/claude-ctf-skills · 4 stars · license MIT · pushed 2026-10-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zuysbhgr7aet7a7n GET https://markdownregistry.com/api/v1/resolve?ref=naravid19/claude-ctf-skills/ctf-malware GET https://markdownregistry.com/api/v1/blob/505684318d0d7e5b1c282569dc1719c1f842d24aaa80d186d05909f2d6277cbc
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.
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