Detecting Anomalous Network Behavior Through Real Time Flow Monitoring and Threat Intelligence

Authors

  • Sergio Navarro Network Security Engineer, Spain Author

Keywords:

Network Anomaly Detection, Flow Monitoring, Machine Learning, Threat Intelligence, Cybersecurity, Real-Time Analysis

Abstract

The rapid expansion of networked systems and the sophistication of cyber threats have highlighted the limitations of traditional, signature-based security measures. This study explores the convergence of real-time flow monitoring with dynamic threat intelligence to identify anomalous network behavior effectively. By leveraging machine-learning models and enriched threat feeds, organizations can detect zero-day attacks, lateral movements, and stealthy intrusions with greater accuracy. The paper proposes a layered approach where network telemetry is fused with contextual threat data to enable proactive detection mechanisms. This model serves as a foundation for resilient security architectures in dynamic enterprise environments.

References

Garcia-Teodoro, P., Díaz-Verdejo, J., Maciá-Fernández, G., & Vázquez, E. (2009). Anomaly-based network intrusion detection: Techniques, systems and challenges. Compute rs & Security, 28(1-2), 18–28.

Sommer, R., & Paxson, V. (2010). Outside the closed world: On using machine learning for network intrusion detection. IEEE Symposium on Security and Privacy, 305–316.

Wang, P., Sparks, S., & Zou, C. C. (2011). An advanced hybrid peer-to-peer botnet. IEEE Transactions on Dependable and Secure Computing, 7(2), 113–127.

Shbair, W., Goebel, J., Hohlfeld, O., & Freisleben, B. (2015). Flow-based detection of content agnostic malware. IFIP/IEEE International Symposium on Integrated Network Management, 366–373.

Ye, Y., Wang, D., Li, T., & Ye, D. (2017). An entropy-based approach to detect stealthy attacks in network traffic. Knowledge and Information Systems, 50(3), 719–743.

Lee, S., Lee, H., & Lee, Y. (2019). A hybrid approach for detecting DDoS attack in software defined networks. Cluster Computing, 22(1), 1435–1444.

Hashemi, S., Faezi, S., & Malekzadeh, M. (2020). Deep learning for anomaly detection in encrypted traffic. Security and Communication Networks, 2020, 1–9.

Alshamrani, A., Myneni, S., Chowdhary, A., & Huang, D. (2021). A survey on advanced persistent threats: Techniques, solutions, challenges, and research opportunities. IEEE Communications Surveys & Tutorials, 23(2), 995–1036.

Deng, X., Chen, M., & Yang, Z. (2023). Federated anomaly detection for IoT with edge-cloud collaboration. Journal of Parallel and Distributed Computing, 170, 108–119.

Ali, A., Qaisar, S., & Khalid, O. (2018). Network anomaly detection using flow-based machine learning. Wireless Personal Communications, 100(2), 499–517.

Park, Y., & Lee, J. (2022). Threat intelligence correlation model for proactive anomaly detection. KSII Transactions on Internet and Information Systems, 16(3), 945–961.

Kim, H., & Lee, H. (2019). A real-time flow monitoring system for detecting lateral movements. Journal of Information Security and Applications, 46, 59–69.

Zuech, R., Khoshgoftaar, T. M., & Wald, R. (2015). Intrusion detection and Big Heterogeneous Data: a Survey. Journal of Big Data, 2(1), 1–41.

Tavallaee, M., Stakhanova, N., & Ghorbani, A. A. (2010). Toward credible evaluation of anomaly-based intrusion detection methods. IEEE Transactions on Systems, Man, and Cybernetics, 40(5), 516–524.

Downloads

Published

2026-02-11