OpenCTI

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OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. OpenCTI is designed to provide organizations with the means to manage CTI through the storage, analysis, visualization and presentation of threat campaigns, malware and IOCs.

Developed by the collaboration of the French National cybersecurity agency (ANSSI), the platform’s main objective is to create a comprehensive tool that allows users to capitalise on technical and non-technical information while developing relationships between each piece of information and its primary source. The platform can use the MITRE ATT&CK framework to structure the data. Additionally, it can be integrated with other threat intel tools such as MISP and TheHive.

OpenCTI Data Model

• GraphQL API: The API connects clients to the database and the messaging system.
• Write workers: Python processes utilised to write queries asynchronously from the RabbitMQ messaging system.
• Connectors: Another set of Python processes used to ingest, enrich or export data on the platform. These connectors provide the application with a robust network of integrated systems and frameworks to create threat intelligence relations and allow users to improve their defence tactics.

OpenCTI Connectors

Class	Description	Examples
External Input Connector	Ingests information from external sources	CVE, MISP, TheHive, MITRE
Stream Connector	Consumes platform data stream	History, Tanium
Internal Enrichment Connector	Takes in new OpenCTI entities from user requests	Observables enrichment
Internal Import File Connector	Extracts information from uploaded reports	PDFs, STIX2 Import
Internal Export File Connector	Exports information from OpenCTI into different file formats	CSV, STIX2 export, PDF

OpenCTI Dashboard

Activities

The activities section covers security incidents ingested onto the platform in the form of reports. It makes it easy for analysts to investigate these incidents. 

Analysis