Application-Specific Traffic Anomaly Detection Using Universal Background Model.

ABSTRACTThis paper presents an application-specific intrusion detection framework in order to address the problem of detecting intrusions in individual applications when their traffic exhibits anomalies. The system is based on the assumption that authorized traffic analyzers have access to a trustworthy binding between network traffic and the source application responsible for it. Given traffic flows generated by individual genuine application, we exploit the GMM-UBM (Gaussian Mixture Model-Universal Background Model) method to build models for genuine applications, and thereby form our detection system. The system was evaluated on a public dataset collected from a real network. Favorable results indicate the success of the framework.