Automated Weekly Shodan Scan for Unexpected Open Ports
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Automate weekly Shodan scans to proactively monitor your network for unexpected open ports and exposed services. This no-code workflow integrates with your existing security systems to identify potential vulnerabilities, ensuring continuous network integrity without manual effort. Receive detailed, formatted Markdown reports on any detected deviations for swift action and improved compliance.
About This Workflow
Safeguard your digital assets with our n8n workflow for automated Shodan monitoring. Designed for SecOps teams and network administrators, this workflow initiates by fetching a dynamic list of critical IP addresses and their expected open ports from your internal security systems. It then leverages the powerful Shodan API to scan each IP, meticulously comparing discovered services against your baseline. Any unexpected open ports or services are intelligently filtered, transformed into an easily digestible Markdown table, and prepared for reporting. This fully automated, no-code solution drastically reduces manual workload, enhances your security posture, and ensures timely detection of potential vulnerabilities, helping you maintain continuous compliance and respond proactively to threats.
Key Features
- Automated Weekly Scans: Schedule recurring Shodan queries to maintain continuous oversight of your network.
- Dynamic IP & Port Integration: Connect to your IPS or database to automatically pull a live list of IPs and their expected open ports.
- Shodan API Connectivity: Seamlessly query Shodan to gather comprehensive data on internet-facing assets.
- Intelligent Anomaly Detection: Filter for and identify only the unexpected open ports and services that deviate from your predefined configurations.
- Formatted Reporting: Automatically convert findings into clear, actionable Markdown tables for easy review and integration into reports.
- 100% No-Code Automation: Build and deploy powerful security workflows without writing a single line of code, simplifying maintenance and accessibility.
How To Use
- Configure Initial Data Source: Replace the mock API call in the 'Get watched IPs & Ports' node with an API endpoint or database query that returns your list of monitored IPs and their expected ports in the specified JSON format.
- Set Shodan API Key: Create or select your Shodan API Key credential (
httpQueryAuthtype) and link it to the 'Scan each IP' node. - Review Filter Logic: The 'Unexpected port?' node is designed to pass services discovered on ports not in your watched list. Ensure its condition accurately reflects this intention based on your security policy.
- Customize Reporting: Extend the workflow with your preferred notification node (e.g., 'Send Email', 'Slack', 'Microsoft Teams') to send the generated Markdown report to your SecOps team or other stakeholders.
- Schedule Execution: Set the workflow to run on a weekly schedule using a 'Cron' or 'Interval' trigger node to ensure continuous monitoring.
Apps Used
Workflow JSON
{
"id": "1ad78d35-d625-47dd-bb68-f13906191076",
"name": "Automated Weekly Shodan Scan for Unexpected Open Ports",
"nodes": 14,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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ID: 1ad78d35-d625...
About the Author
Free n8n Workflows Official
System Admin
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