deobfuscating-javascript-malware SKILL.md skillB
deobfuscating-javascript-malware from adriannoes/awesome-agentic-ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add adriannoes/awesome-agentic-ai/deobfuscating-javascript-malware@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- adriannoes/awesome-agentic-ai
- Path
cursor-claude-codex/skills/anthropic-cybersecurity-skills/skills/deobfuscating-javascript-malware/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0.0, committed Jun 25, 2026
- First version recorded
- Jun 11, 2026
- Size
- 13,103 bytes
- Repository stars
- 69
- License
- MIT
'Deobfuscates malicious JavaScript code used in web-based attacks, phishing.
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
# Deobfuscating JavaScript Malware ## When to Use - Investigating a phishing page with obfuscated JavaScript that performs credential harvesting or redirect - Analyzing a web skimmer (Magecart-style) injected into an e-commerce site - Deobfuscating a JavaScript dropper that downloads and executes second-stage malware - Examining malicious email attachments containing HTML files with embedded obfuscated scripts - Analyzing browser exploit kits that use heavy JavaScript obfuscation to hide exploit delivery **Do not use** for obfuscated JavaScript that is merely minified production code; use a standard beautifier instead. ## Prerequisites - Node.js 18+ installed for executing and debugging JavaScript in a controlled environment - Python 3.8+ with `jsbeautifier` library for code formatting - Browser developer tools (Chrome DevTools) for controlled execution in an isolated browser - CyberChef (https://gchq.github.io/CyberChef/) for encoding/decoding operations - de4js or JStillery for automated JavaScript deobfuscation - Isolated analysis VM with no access to production systems or sensitive data ## Workflow ### Step 1: Safely Extract and Examine the Obfuscated Script …
Read the whole file at its exact version.
How to install
mdr add adriannoes/awesome-agentic-ai/deobfuscating-javascript-malware@sha256:c398220aa65995aeThe line at the top of this page pins the label v1.0.0, 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_dbllnqcteqpexjup)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 11, 2026 and Jun 25, 2026, about one every 14 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-06-25 | f69bd81 | 13,103 B | B | view · diff |
| v1.0.0 | 2026-06-11 | ff4cc7c | 13,035 B | B | view |
Audit of the latest version
- 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 (13103 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
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
adriannoes/awesome-agentic-ai · 69 stars · license MIT · pushed 2026-10-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dbllnqcteqpexjup GET https://markdownregistry.com/api/v1/resolve?ref=adriannoes/awesome-agentic-ai/deobfuscating-javascript-malware GET https://markdownregistry.com/api/v1/blob/c398220aa65995ae0dac16fed620d103679da6333c7807b2e276fcdc82452045
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.