OpenCTI RST Whois API Connector

Updates on OpenCTI: Introducing the RST WHOIS API Connector

Mar 27, 2025

We are excited to announce significant updates to our integration with OpenCTI! As part of our ongoing commitment to enhancing threat intelligence capabilities for our users, we have introduced the RST WHOIS API connector, now available in the latest OpenCTI release, version 6.5.6. This addition, combined with other RST Cloud OpenCTI connectors, represents a crucial advancement in enriching your cybersecurity operations and improving your threat analysis processes.

Overview of Our New Connector

The RST WHOIS API connector allows users to obtain detailed domain registration data directly within the OpenCTI platform. This useful integration enhances the analysis of domain and URL observables by providing critical information regarding domain ownership, registration dates, and associated details.

In addition to the RST WHOIS API connector, we also offer several other powerful OpenCTI connectors available from RST Cloud, including:

  • RST Threat Feed: Gain access to real-time threat intelligence that helps you stay informed about emerging threats.
  • RST Report Hub: A centralised location for gathering and managing security reports to improve your threat intelligence.
  • RST IoC Lookup: Quickly search for Indicators of Compromise (IoCs) and enhance your investigations with contextual data.
  • RST Noise Control: Manage and filter out irrelevant alerts, ensuring your focus remains on critical incidents that require your attention.

Why Use WHOIS and RDAP Data?

Incorporating WHOIS and RDAP information adds immense value to your observables and indicators. By enriching your data sets with domain registration details, you can:

  1. Enhance Attribution: Understand who is behind a particular domain or URL, which can significantly aid in threat attribution during investigations.
  2. Identify Patterns: Spot patterns in malicious activity by analyzing registration information across multiple domains.
  3. Improve Incident Response: Quickly access registration details to facilitate faster and more effective responses to security incidents.
  4. Strengthen Defence Mechanisms: Use enriched data to refine your detection mechanisms and proactively identify potential threats.

Getting Started

To start leveraging the new RST WHOIS API connector, simply upgrade to OpenCTI version 6.5.6 and follow configuration guide that will help you set up the connector and integrate it into your existing workflows.

We believe that this update will provide you with powerful tools to enhance your threat intelligence capabilities and improve your overall security posture.

To Learn More – Contact Us

Thank you for your continued support and engagement with RST Cloud. We’re excited to see how these new tools will enhance your threat intelligence processes. Should you have any questions or need assistance, feel free to reach out to our support team.

Happy integrating!