A Model for Automated Cybersecurity Threat Remediation and Sharing

This paper presents an approach to the automatic remediation of threats reported by Cyber Threat Intelligence. Remediation strategies, named Recipes, are expressed in a close-to-natural language for easy validation. Thanks to the developed models, they are interpreted, contextualized, and then translated into CACAO Security playbooks, a standard format ready for automatic enforcement, without human intervention. The presented approach also allows sharing of remediation procedures on threat-sharing platforms (e.g. MISP) which improves the overall security posture. The effectiveness of the approach has been tested in the context of two EC-funded projects.