🕵️‍♂️ SubSpy – Automated Subdomain Monitoring

A bash script to automatically discover and monitor subdomains for multiple domains daily. It sends notifications directly to your Discord channel whenever new subdomains are identified.

⚙️ Requirements

• subfinder
• jq
• anew
• curl (pre-installed in most Linux distros)

Install quickly with Go:

go install -v github.com/projectdiscovery/subfinder/v2/cmd/subfinder@latest
go install github.com/tomnomnom/anew@latest
sudo apt install jq

Ensure Go binaries are added to your PATH:

export PATH=$PATH:~/go/bin

🚀 Installation

git clone https://github.com/themalwarenews/SubSpy/
cd SubSpy
chmod +x subspy.sh

🛠️ Configuration

• Create a file called domains.txt in the same directory as the script.
• Add your domains line-by-line:

example.com
testsite.com

Setting Up Discord Notifications

• Create a Discord channel.

• Create a webhook in your Discord channel:

  • Go to Channel Settings → Integrations → Webhooks
  • Click New Webhook, give it a name, and copy the URL.

• Set your Discord webhook URL as an environment variable:

export DISCORD_WEBHOOK="your_discord_webhook_url_here"

Verify Webhook:

• The first time you run the script, it sends a test notification automatically.

▶️ Running the Script

To run manually:

./subspy.sh

Automate with Cron Job

Run the scan daily at 8:00 AM:

crontab -e

Add this line:

0 8 * * * /path/to/subspy.sh >> /var/log/subspy.log 2>&1

📌 How it Works

• Performs daily subdomain enumeration.
• Compares the results against the previous run.
• Immediately sends new findings to your Discord channel.
• Provides clear updates about each scan.

🖥️ Example Discord Notifications

• Webhook Verified:

✅ Webhook configured successfully! (Webhook verification)

• Scanning Started:

🔄 Subdomain Monitoring Scan Started!

• Scanning domain:

🟡 Scanning: example.com

• Initial scan completed:

✅ Initial scan completed for example.com: Found 42 subdomains.

• New subdomains discovered:

🚨 New subdomains detected for example.com (2):

domain1.example.com
domain2.example.com

• No new subdomains:

✅ No new subdomains found for example.com.

• Scan Completed:

🏁 Subdomain Monitoring Scan Completed for all domains!

🧑‍💻 Contributions

Contributions are welcome! Feel free to open issues, submit pull requests, and improve documentation.

---

Happy Monitoring! 🔎