View detections on phish.report 🐟

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Indicator of Kit is an open source detection language for phishing site techniques, kits, and threat actors 🕵️

• Simple: based on Sigma, a simple detection rules language 🚀
• Rich metadata: rules have descriptions, tags, and links to blog posts or related rules.

Use cases:

• Identify fingerprints of known threat actors
• Discover anti-analysis techniques
• Classify which specific phishing kit is in use on a page
• Identify deceptive websites dropping malicious software
• Discover APT infrastructure
• Detect malware C&C panels

📝 Creating indicators

IOK indicators are written using Sigma

Field name	Type	Description
title	[]string	The title of the site as shown in a browser. If multiple titles are set (e.g. by JavaScript), this contains each one.
hostname	string	The hostname of the site
html	string	The contents of the page HTML (as returned by the server)
dom	string	The contents of the page HTML after loading (e.g. after javascript has executed)
js	[]string	Contents of JavaScript from the page (includes inline scripts as well as scripts loaded externally)
css	[]string	Contents of CSS from the page (includes inline stylesheets as well as externally loaded stylesheets)
cookies	[]string	Cookies from the page. Each is in the form cookieName=value
headers	[]string	Headers sent by the server. Each is in the form Header-Name: value
requests	[]string	URLs of requests made by the page (and assets loaded by the page)

We are always looking for contributions: there's far more phishing kits and techniques than a single team can analyse!

To contribute a new rule:

1. Try to make sure it doesn't already exist
2. Open a pull request, adding your new file in the indicators/ folder
3. We'll review it and merge your PR
4. It'll go live on phish.report/IOK!

💭 Comparison to similar projects

	IOK	PhishingKit-Yara-Rules	Wappalyzer
Open Source	✅	✅	✅
Ruleset size	> 215 Rules 🦐	500 rules 🐠	1000s of rules 🐳
Can scan	Live websites 🕸	Phishing kit zips 📦	Live websites 🕸
Phishing focused	✅	✅	❌
Supports complex conditions	✅	✅	❌
Sends out stickers to contributors 🎁	✅	❌	❌

🤝 Contributing

There's a reference on how to write IOK rules in the Phish Report documentation.

📝 License

This project is ODbL licensed. You're free to use the rules in your own projects (including commercial ones!) as long as you credit phish.report/IOK as the source.

For more details, read OpenStreetMap's guidance (who also use the ODbL license).