Chapter 11

Anomaly-Based Detection with Statistical Data

Abstract

Network Security Monitoring is based upon the collection of data to perform detection and analysis. With the collection of a large amount of data, it makes sense that a SOC should have the ability to generate statistical data from existing data, and that these statistics can be used for detection and analysis. In this chapter we will discuss methods for generating statistical data that can be used to support detection, including near real-time detection and retrospective detection. This will focus on the use of various NetFlow tools like rwstats and rwcount. We will also discuss methods for visualizing statistics by using Gnuplot and the Google Charts API. This chapter will provide ...

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