# Ctf Malware (agent skill)

> Ctf Malware is an agent skill (a SKILL.md file) from ljagiello/ctf-skills. It provides malware analysis and network traffic techniques for CTF challenges. It works with Claude Code, Codex, Gemini CLI and OpenCode and has 3,399 GitHub stars across a repository of 3 listed 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…

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/ljagiello/ctf-skills |
| Skill path | ctf-malware/SKILL.md |
| Skill name | ctf-malware |
| GitHub stars | 3,399 |
| Installs on skills.sh | not listed |
| License | MIT |
| Skills in repo | 3 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code, Codex, Gemini CLI, OpenCode |
| Category | Security |
| Last commit | Sep 13, 2026 |

## When it triggers

- Use when analyzing obfuscated scripts, malicious packages, custom crypto protocols, C2 traffic, PE/.

## Add this skill

### Claude Code

```sh
git clone --depth 1 https://github.com/ljagiello/ctf-skills.git
cp -r ctf-skills/ctf-malware ~/.claude/skills/ctf-malware   # personal, or .claude/skills in a project
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/ljagiello/ctf-skills.git
cp -r ctf-skills/ctf-malware .agents/skills/ctf-malware   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/ljagiello/ctf-skills.git
cp -r ctf-skills/ctf-malware .cursor/skills/ctf-malware   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

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Canonical page: https://appsgit.com/skills/ljagiello-ctf-malware
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