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Enhancing Explainability in Alert Triaging for Improved Security Event Analysis : Integrating Domain-Specific Knowledge from the MITRE ATT&CK Framework

Hoogendijk, R. (2024) Enhancing Explainability in Alert Triaging for Improved Security Event Analysis : Integrating Domain-Specific Knowledge from the MITRE ATT&CK Framework.

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Abstract:This study attempts to enhance cyber attack analysis by integrating the MITRE ATT&CK Framework into an alert triaging tool, aiming to improve visualization and explanation of entire cyber kill chains. For this study, we attempt to do this for the tool DeepCASE. DeepCASE clusters events based on contextual similarity. The methodology involved mapping security events to MITRE ATT&CK techniques, organizing them into phases, and plotting them in a graph-like attack structure. DeepCASE was then used to identify the most probable attack path within this structure. The evaluation tested assumptions such as the mapping to the MITRE ATT&CK Framework, the method used to create the attack graphs, and how paths are found in these graphs. Results indicate that while the methodology struggles to reliably find attack paths, several adjustments could enhance performance. Potential improvements include better event mapping to the MITRE ATT&CK Framework, using a dependency graph instead of phases, and integrating additional frameworks and tools.
Item Type:Essay (Master)
Clients:
KPMG, Amstelveen, Netherlands
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:54 computer science
Programme:Computer Science MSc (60300)
Link to this item:https://purl.utwente.nl/essays/102783
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