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Wolfgang Jaegers, "Korrelation von Monitoring-Daten und Honeypot-Informationen," Bachelor Thesis, Department of Computer Science, Friedrich–Alexander University of Erlangen–Nuremberg (FAU), October 2006. (Advisor: Falko Dressler)


Owing to the rising number of viruses and worms and the associated attacks in todays computer networks, the importance of attack detection has been increasing in the last few years. There are two fundamentally different approaches for detecting attacks. Host-based detection uses logfiles and user profiles to detect specific events on each individual host. Network-based detection systems exclusively examine network traffic to achieve this aim. Its advantage is the possibility to observe a huge number of hosts based on traffic information only. Signature-based attack detection which searches packets for suspicious contents on the basis of signatures, is very popular. Especially in high-speed networks, such signature-based detection systems often reach their limits because the investigation of packet payload is very complex. In this thesis I tried to detect worm and virus attacks using flow data. Flow data is statistical information about specific data flows that are, for example, distinguished by the IP-5-tuple. To detect attacks, several scripts using this data were developed. To create signatures, flow data were closely examined in a lab environment using a honepot. Based on that information, the function of the scripts was tested and evaluated within the university network. While nearly every attack within the lab environment was detected by the scripts, the detection rate in the university network was less accurate, because of packet loss in the monitoring process.

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Wolfgang Jaegers

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    author = {Jaegers, Wolfgang},
    title = {{Korrelation von Monitoring-Daten und Honeypot-Informationen}},
    advisor = {Dressler, Falko},
    institution = {Department of Computer Science},
    location = {Erlangen, Germany},
    month = {10},
    school = {Friedrich--Alexander University of Erlangen--Nuremberg (FAU)},
    type = {Bachelor Thesis},
    year = {2006},

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