phishing-likely
Combined score says this URL is very likely phishing (default: critical)
GitHub Packages · MIT · Node ≥ 18
phish-sentinel
Offline phishing URL heuristics with an explainable score: lookalike and homograph domains, brand impersonation, IP hosts, user@host tricks, risky TLDs, shorteners, free hosting and redirect chains.
1 Point the
@mrlouiswrightscope at GitHub Packages in.npmrc@mrlouiswright:registry=https://npm.pkg.github.com2 Install
npm i -D @mrlouiswright/phish-sentinel
Installing from GitHub Packages needs a token
Published to GitHub Packages, not npmjs.com. GitHub Packages needs a GitHub token with read:packages to install, even for public packages: add //npm.pkg.github.com/:_authToken=${GITHUB_TOKEN} to .npmrc or run npm login --registry=https://npm.pkg.github.com.
$ npx phish-sentinel 'https://www.paypal.com.secure-login.xyz/verify'phish-sentinel — 1 target(s) https://www.paypal.com.secure-login.xyz/verify domain: secure-login.xyz score: 80 verdict: likely-phishing CRITICAL https://www.paypal.com.secure-login.xyz/verify Score 80/100 (risky-tld, brand-impersonation, credential-lure) [phishing-likely] ↳ secure-login.xyz HIGH https://www.paypal.com.secure-login.xyz/verify "paypal" appears in the host name but the site is secure-login.xyz, not paypal.com [brand-impersonation] ↳ paypal MEDIUM https://www.paypal.com.secure-login.xyz/verify "secure" on secure-login.xyz [credential-lure] ↳ secure MEDIUM https://www.paypal.com.secure-login.xyz/verify .xyz is heavily abused for phishing [risky-tld] ↳ xyz 1 critical, 1 high, 2 medium✖ Failing (fail-on: high).
Why it exists
phish-sentinel scores URLs from 0 to 100 and tells you exactly why. Give it URLs, or files (emails, .eml, HTML, logs, URL lists) and it extracts the URLs itself, refanging “hxxp://” and “[.]” and decoding quoted-printable mail. Nothing is fetched or resolved, so it is safe to run on live phishing samples and works in air-gapped triage. Pass your own domains with --brand to catch typosquats and homographs of *your* brand. CLI, library and GitHub Action. Node.js 18+, zero runtime dependencies.
Features
phishing-suspicious
Combined score says this URL is suspicious (default: high)
brand-lookalike
Domain is a typo/lookalike of a protected brand domain (default: high)
homograph
IDN homograph: mixed scripts or confusable characters spell a known domain (default: high)
brand-impersonation
Brand name in the subdomain or path of an unrelated domain (default: high)
userinfo-trick
user@host form hides the real host (https://bank.com@evil.io) (default: high)
dangerous-scheme
javascript:, data: or vbscript: URL (default: high)
ip-host
Host is a raw or obfuscated IP address (default: medium)
Usage
# Example
npx phish-sentinel 'https://www.paypal.com.secure-login.xyz/verify'# Example
npx phish-sentinel reported/*.eml --brand acme-corp.com --brand acme.io -f table# Example
cat proxy.log | npx phish-sentinel - --trust acme-corp.com --format json > urls.jsonCI / GitHub Action
permissions:
contents: read
security-events: write # only for the SARIF upload
steps:
- uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
with: { persist-credentials: false }
- uses: MrLouisWright/phish-sentinel@v1
with:
targets: 'urls.txt'
fail-on: high
sarif: phish-sentinel.sarif
- uses: github/codeql-action/upload-sarif@v3
if: always()
with: { sarif_file: phish-sentinel.sarif }Options & flags
| Flag | Description |
|---|---|
--brand <domain> | Protect your own domain: flag typos, homographs and impersonation of it |
--trust <domain> | Never flag URLs on this registered domain (repeatable or comma-separated) |
--no-builtin-brands | Only use --brand domains, not the built-in list of commonly phished brands |
-f table | One line per URL: score, verdict, URL |
| Policy and output | |
-c, --config <file> | JSON config (default .phish-sentinel.json if present) |
-f, --format <fmt> | text (default) | json | sarif | markdown |
--json/--sarif/--markdown <file> | Also write that format to a file |
--fail-on <sev> | critical | high | medium | low | info | none (default high) |
--list-rules | Print rules and default severities |
--no-color | Disable colours |
Full reference, config file format and API in the README.
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