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mitm-subdomains

Enumerate subdomains from captured traffic. Use when user asks about subdomain discovery, attack surface mapping, or domain reconnaissance.

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Repository
instavm/security-skills
Last source activity
March 23, 2026 at 05:24
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English
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86
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name
mitm-subdomains
description
Enumerate subdomains from captured traffic. Use when user asks about subdomain discovery, attack surface mapping, or domain reconnaissance.
# Enumerate Subdomains from Traffic Analyze the mitmproxy dump (log.txt) and enumerate subdomains for: $ARGUMENTS > **Requires**: `log.txt` in the current directory. If it's missing, capture traffic first: > ```bash > mitmdump --set flow_detail=3 2>&1 | tee log.txt > ``` ## Tasks ### 1. Extract Seen Subdomains - List all subdomains from captured traffic - Note the purpose of each (API, CDN, auth, etc.) ### 2. Identify Patterns - Common prefixes: api., admin., staging., dev. - Environment indicators: prod., uat., test. - Service patterns: auth., pay., cdn. ### 3. Suggest More to Discover Based on patterns, suggest testing: ``` api, admin, dashboard, portal, internal, staging, dev, test, qa beta, alpha, demo, sandbox, uat, preprod, prod mail, email, smtp, mx, webmail cdn, static, assets, media, images, files db, database, mysql, postgres, mongo, redis auth, login, sso, oauth, identity pay, payment, checkout, billing, invoice mobile, m, app, ios, android docs, documentation, help, support, wiki analytics, metrics, stats, monitor, grafana jenkins, gitlab, github, ci, build vpn, remote, gateway, proxy console, panel, backend, cms, manage ``` ## Output Format For each discovered subdomain: - **Subdomain**: Full URL - **Type**: API/CDN/Auth/Admin/etc. - **Visibility**: Internal/External facing - **Risk**: Flag sensitive ones ## Also Check For - Cloud storage buckets (s3, gcs, azure blob) - Third-party services with company data - Debug/test endpoints that shouldn't be public - Old/deprecated subdomains still active
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