Modeling Attack Activity for Integrated Analysis of Threat Information

Daiki ITO  Kenta NOMURA  Masaki KAMIZONO  Yoshiaki SHIRAISHI  Yasuhiro TAKANO  Masami MOHRI  Masakatu MORII  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E101-D   No.11   pp.2658-2664
Publication Date: 2018/11/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2017ICP0015
Type of Manuscript: Special Section PAPER (Special Section on Information and Communication System Security)
Category: Forensics and Risk Analysis
Keyword: 
diamond model,  threat intelligence,  cyber kill chain,  incident report,  

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Summary: 
Cyber attacks targeting specific victims use multiple intrusion routes and various attack methods. In order to combat such diversified cyber attacks, Threat Intelligence is attracting attention. Attack activities, vulnerability information and other threat information are gathered, analyzed and organized in threat intelligence and it enables organizations to understand their risks. Integrated analysis of the threat information is needed to compose the threat intelligence. Threat information can be found in incident reports published by security vendors. However, it is difficult to analyze and compare their reports because they are described in various formats defined by each vendor. Therefore, in this paper, we apply a modeling framework for analyzing and deriving the relevance of the reports from the views of similarity and relation between the models. This paper presents the procedures of modeling incident information described in the reports. Moreover, as case studies, we apply the modeling method to some actual incident reports and compare their models.