Literature Database Entry

berger2012optimizing


Mario Berger, "Optimizing Attack Detection Techniques using Load Distribution and Anomaly Detection," Master's Thesis, Institute of Computer Science, University of Innsbruck, August 2012. (Advisors: Falko Dressler and Felix Erlacher)

Abstract

Attacks against computer systems are often launched over the Internet or any other computer network. Therefore, attacks or intrusion attempts can be identified by examining network traffic, which is also known as intrusion detection. Traditional Intrusion Detection Systems (IDSs) often rely on signatures or rule sets which are used to describe well-known attacks. Unfortunately, with these systems it is almost impossible to detect novel attacks, because rule sets do not have any information about these attacks. To address this problem, anomaly detection techniques can be used to detect novel attacks by identifying network traffic that deviates from normal behavior. As many different Anomaly Detection Algorithms (ADAs) have been developed for different types of anomalies, it seems to be reasonable to rely on multiple algorithms for intrusion detection. Because algorithms can also be very resource-intensive, they may not be able to keep up with packet rates of today's high-speed networks. Therefore, a load balancing scheme is required to control the amount of network traffic to be analyzed by the individual algorithms. In order to make extensive use of multiple ADAs for intrusion detection in computer networks, we have developed a framework for anomaly detection as part of a network monitoring software. As a proof of concept, we have implemented an initial set of ADAs together with a load balancer for operation in high-speed networks. Our evaluations have shown that detection performances can benefit from using multiple algorithms and that the developed framework is also able to cope with packet rates of high-speed networks.

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Mario Berger

BibTeX reference

@phdthesis{berger2012optimizing,
    author = {Berger, Mario},
    advisor = {Dressler, Falko and Erlacher, Felix},
    title = {{Optimizing Attack Detection Techniques using Load Distribution and Anomaly Detection}},
    institution = {Institute of Computer Science},
    year = {2012},
    month = {August},
    school = {University of Innsbruck},
    type = {Master's Thesis},
   }
   
   

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