# x0rz/phishing_catcher

Phishing catcher using Certstream

Repository: https://github.com/x0rz/phishing_catcher
Canonical: https://ross.abutalabs.com/products/phishing_catcher
Homepage: https://blog.0day.rocks/catching-phishing-using-certstream-97177f0d499a
Language: Python
License: GPL-3.0
License Family: copyleft
Topics: phishing, threat-intelligence, certificate-transparency, osint, threatintel
Last push: 2024-08-13T22:18:01+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3221, "days_push": 750, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1819, forks 359 (observed 2026-08-28T04:05:40.728810+00:00)

## What it is
A Python CLI tool that monitors TLS certificate issuances in near real time via the CertStream API and flags suspicious domains using a configurable keyword-scoring system. It serves as a proof-of-concept for detecting potential phishing domains as they are registered in the Certificate Transparency Log.

## Use cases
- detect newly issued phishing domains in real time
- monitor certificate transparency logs for suspicious domains
- score domains for phishing likelihood based on keywords
- feed threat intelligence workflows with early phishing warnings
- run a dockerized phishing domain watcher
- customize keyword scoring rules for brand protection

## When to choose
- you want near-real-time alerts on suspicious TLS certificate issuances
- you need a lightweight, scriptable phishing domain detector
- you want to customize scoring rules via simple YAML config
- you work in threat intelligence or OSINT and monitor domain abuse

## When to avoid
- you need a full phishing detection platform with takedown and reporting features
- you require low false positives out of the box without tuning
- you need a GUI or managed service rather than a PoC script
- you want passive DNS or URL content analysis rather than certificate-based detection

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: osint, security, monitoring, streaming
- domain: security, osint
- platform: python, cli, cross-platform
- tags: certstream, certificate-transparency, phishing-detection, threatintel, domain-monitoring, threat-intelligence, phishing, docker

## Member repositories
- x0rz/phishing_catcher (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:40.728810+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:20:02.824102+00:00, confidence not recorded.
  - readme: https://github.com/x0rz/phishing_catcher (fetched 2026-08-28T04:05:40.728810+00:00, sha 8ed543ea72af)
- Data as of 2026-08-30T08:39:29.467469+00:00.