“SLiCER: Safe Long-term Cloud Event Archival”

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Adriano Serckumecka, Ibéria Medeiros, Bernardo Ferreira, Alysson Bessani

in In Proceedings of the IEEE Pacific Rim International Symposium on Dependable Computing (PRDC), Dec. 2019.

Abstract: Security Information and Event Management (SIEM) systems have been adopted by organizations to enable holistic monitoring of malicious activities in their IT infrastructures. SIEMs receive events from diverse devices of the organization’s IT infrastructure (e.g., servers, firewalls, IDS), correlate these events, and present reports for security analysts. Given the large number of events collected by SIEMs, it is costly to store such data for long periods. Since organizations store a relatively limited time-frame of events, the forensic analysis capabilities severely become reduced. We present SLICER an archival system for long-term storage that makes use of a multi-cloud-based storage system to guarantee data security, low cost and “infinite” scalability, and ensures cost-effectiveness by grouping events in blocks and using indexing techniques to recover them. The system was evaluated using a real dataset and the results show that it is significantly more cost-efficient than competing alternatives.

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Project(s): Project:DiSIEM

Research line(s): Fault and Intrusion Tolerance in Open Distributed Systems (FIT)

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