Pentest 🛡️ What is Subcat? ⁉️ 🌐

[dEEpEst]

Post created for the Hack Tools Dark Community​

What is Subcat?

Subcat is a **passive subdomain enumeration tool** tailored for cybersecurity professionals and bug bounty hunters who want **silent reconnaissance** without alerting the target.

What is Passive Discovery?​

• Collects subdomain data from **public sources** — no direct interaction with the target server.
• Completely stealth — leaves **zero traces**.
• Leverages **databases and OSINT APIs** for enumeration.

Features:​

• ️ **Fast & efficient** subdomain collection.
• 100% passive – **no DNS queries** to the target.
• Expands the **attack surface** for further exploitation.
• Designed for both beginners and pros.

Installation and Usage:​

1. Install: `sudo pip install subcat`
2. Run: `subcat -d example.com --silent`

Basic Options:​

• `-d example.com`: Target domain
• `--silent`: Output only subdomains

Example Output:​

• www.example.com
• blog.example.com
• dev.example.com
• api.example.com

Improve Accuracy with API Keys:​

You can add keys in `config.yaml`:

virustotal: "your_virustotal_api_key"
shodan: "your_shodan_api_key"
securitytrails: "your_securitytrails_api_key"
censys: "your_censys_api_key"
binaryedge: "your_binaryedge_api_key"

️ Advanced Usage:​

subcat -d example.com --all --output subdomains.txt

• `--all`: Use all passive sources
• `--output`: Save results to file
• `--threads`: Increase speed with multithreading
• `--verbose`: Show detailed progress

Similar Tools:​

• This link is hidden for visitors. Please Log in or register now.
  — Active & Passive enumeration
• This link is hidden for visitors. Please Log in or register now.
  — Fast passive subdomain finder
• This link is hidden for visitors. Please Log in or register now.
  — Lightweight and effective

Disclaimer:​

Use this tool **only** on domains you have explicit permission to test. Unauthorized usage may violate laws and result in consequences. This post is **strictly educational**.

Join the Discussion​

Have you tried Subcat or prefer other alternatives like Subfinder or Amass?
Drop your feedback, tips, or configs below — let’s learn together.