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Daedalus: Network Anomaly Detection on IDS Stream Logs

  • Aniss ChohraEmail author
  • Mourad DebbabiEmail author
  • Paria ShiraniEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11358)

Abstract

In this paper, we propose a scalable framework, called Daedalus, to analyze streams of NIDS (network-based intrusion detection system) logs in near real-time and to extract useful threat security intelligence. The proposed system pre-processes huge amounts of BRO NIDS logs received from different participating organizations and applies an elaborated anomaly detection technique in order to distinguish between normal and abnormal or anomalous network behaviors. As such, Daedalus detects network traffic anomalies by extracting a set of features of interest from the connection logs and then applying a time series-based technique in order to detect abnormal behavior in near real-time. Moreover, we correlate IP blocks extracted from the logs with some external security signature-based feeds that detect factual malicious activities (e.g., malware families and hashes, ransomware distribution, and command and control centers) in order to validate the proposed approach. Performed experiments demonstrate that Daedalus accurately identifies the malicious activities with an average \(F_{1}\) score of \(92.88\%\). We further compare our proposed approach with existing K-Means approaches and demonstrate the accuracy and efficiency of our system.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Security Research Centre, Gina Cody School of Engineering and Computer ScienceConcordia UniversityMontrealCanada

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