Network Working Group M. Dulaunoy Internet-Draft CIRCL Intended status: Informational October 1, 2016 Expires: April 4, 2017 MISP core format draft-dulaunoy-misp-core-format Abstract This document describes the MISP core format used to exchange indicators and threat information between MISP (Malware Information and threat Sharing Platform) instances. The JSON format includes the overall structure along with the semantic associated for each respective key. The format is described to support other implementations which reuse the format and ensuring an interoperability with existing MISP [MISP-P] software and other Threat Intelligence Platforms. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on April 4, 2017. Copyright Notice Copyright (c) 2016 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must Dulaunoy Expires April 4, 2017 [Page 1] Internet-Draft MISP core format October 2016 include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Format . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . 2 2.2. Event . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3. References . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.1. Normative References . . . . . . . . . . . . . . . . . . 3 3.2. Informative References . . . . . . . . . . . . . . . . . 3 Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . 3 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction Sharing threat information became a fundamental requirements in the Internet, security and intelligence community at large. Threat information can include indicators of compromise, malicious file indicators, financial fraud indicators or even detailed information about a threat actor. MISP started as an open source project in late 2011 and the MISP format started to be widely used as an exchange format within the community in the past years. The aim of this document is to describe the specification and the MISP core format. 2. Format 2.1. Overview The MISP core format is in the JSON [RFC4627] format. In MISP, an event is composed of a single JSON object. 2.2. Event An event is a simple meta structure scheme where attributes and meta- data are embedded to compose a coherent set of indicators. An event can be composed from an incident, a security analysis report or a specific threat actor analysis. The meaning of an event only depends of the information embedded in the event. 3. References Dulaunoy Expires April 4, 2017 [Page 2] Internet-Draft MISP core format October 2016 3.1. Normative References [RFC4627] Crockford, D., "The application/json Media Type for JavaScript Object Notation (JSON)", RFC 4627, DOI 10.17487/RFC4627, July 2006, . 3.2. Informative References [MISP-P] MISP, , "MISP Project - Malware Information Sharing Platform and Threat Sharing", . Appendix A. Acknowledgements The authors wish to thank all the MISP community to support the creation of open standards in threat intelligence sharing. Author's Address Alexandre Dulaunoy Computer Incident Response Center Luxembourg 41, avenue de la gare Luxembourg L-1611 Luxembourg Phone: +352 247 88444 Email: alexandre.dulaunoy@circl.lu Dulaunoy Expires April 4, 2017 [Page 3]