Aggregating alerts of malicious events for computer security

Abstract

A method of processing malicious events in a network infrastructure determines features of malicious events detected by a firewall of an attack analyzer. Example features may indicate an origin of an attack, a target of the attack, or a type of a malicious event. The attack analyzer determines distances, e.g., using a non-Euclidean distance function, between features of a given malicious event and features of statistical distribution objects (SDOs). The SDOs describe clusters of previously detected malicious events. The attack analyzer may select one of the SDOs that has features similar to those of the given malicious event. The attack analyzer can update the SDOs by including an alert of the given malicious event with an existing cluster or generating a new cluster including the alert. The attack analyzer may transmit information describing the clusters of the SDOs to a management console.