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Polinrider Scan

Category: Security  ·  Sub-category: malware-analysis  ·  Last updated:
type:audit
Scan a project or machine for the PolinRider DPRK/Lazarus supply-chain malware (March–April 2026 npm + VS Code campaign). Use whenever the user asks to scan, audit, or check for PolinRider, the postcss / tailwind / webpack / next config infection, the `temp_auto_push.bat` / `config.bat` propagation, the StakingGame `.vscode/tasks.json` dropper (UUID `e9b53a7c-2342-4b15-b02d-bd8b8f6a03f9`), or any IOC listed in `references/iocs.md`. Trigger proactively when the user reports unexplained `node -e` processes, `createRequire` showing up in simple ESM build configs, unfamiliar `tailwindcss-*-animate*` packages in `package.json` or lockfiles, `.vscode/tasks.json` with `runOn: folderOpen`, font files that read as plain text, or `*.bat` files appearing in JavaScript repo roots. Also trigger when the user mentions the DPRK / Lazarus npm supply-chain attack or the `OpenSourceMalware/PolinRider` repository.
Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Polinrider Scan includes pricing or quota commentary; 35 code blocks for direct copy-paste. At roughly 4,029 words the SKILL.md is on the longer end of the catalog distribution.

Original author
finom
Indexed lastmod
Catalog position
Security · malware-analysis
Indexed related skills
10

How Polinrider Scan fits the catalog

Polinrider Scan sits in the Security category under the malware-analysis sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

PolinRider is a DPRK/Lazarus supply-chain malware (March–April 2026 campaign) targeting JavaScript/Node.js developers. The infection chain:

What this skill does

Polinrider Scan is a community-contributed Claude Code skill in the malware-analysis sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/polinrider-scan/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use whenever the user asks to scan, audit, or check for PolinRider, the postcss / tailwind / webpack / next config infection, the `temp_auto_push.bat` / `config.

Who uses this skill

The Polinrider Scan Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/polinrider-scan
curl -L https://claudskills.com/skills/polinrider-scan/SKILL.md \
  -o ~/.claude/skills/polinrider-scan/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/polinrider-scan/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/polinrider-scan/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\polinrider-scan\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Polinrider Scan Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/polinrider-scan/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Polinrider Scan skill do?
Scan a project or machine for the PolinRider DPRK/Lazarus supply-chain malware (March–April 2026 npm + VS Code campaign). Use whenever the user asks to scan, audit, or check for PolinRider, the postcss / tailwind / webpack / next config infection, the `temp_auto_push.bat` / `config.bat` propagation, the StakingGame `.vscode/tasks.json` dropper (UUID `e9b53a7c-2342-4b15-b02d-bd8b8f6a03f9`), or any IOC listed in `references/iocs.md`. Trigger proactively when the user reports unexplained `node -e` processes, `createRequire` showing up in simple ESM build configs, unfamiliar `tailwindcss-*-animate*` packages in `package.json` or lockfiles, `.vscode/tasks.json` with `runOn: folderOpen`, font files that read as plain text, or `*.bat` files appearing in JavaScript repo roots. Also trigger when the user mentions the DPRK / Lazarus npm supply-chain attack or the `OpenSourceMalware/PolinRider` repository.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Polinrider Scan skill?
Use Polinrider Scan when your Claude Code task falls under the Security category — specifically in the malware analysis area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Polinrider Scan" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Polinrider Scan skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Polinrider Scan is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
finom. (2026). Polinrider Scan [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/polinrider-scan/
BibTeX
@misc{polinrider-scan-2026,
  author    = {finom},
  title     = {Polinrider Scan [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/polinrider-scan/}
}

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Security scan

Grade A · scanned 2026-06-13 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 3 of 10 categories (execution, obfuscation, persistence), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/polinrider-scan/#security)

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More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills
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