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SSHCure: SSH Intrusion Detection using NetFlow and IPFIX

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Luuk Hendriks, Rick Hofstede, Anna Sperotto, Aiko Pras

SSHCure: SSH Intrusion Detection

using NetFlow and IPFIX

Design and Analysis of Communication Systems, University of Twente {luuk.hendriks,r.j.hofstede,a.sperotto,a.pras}@utwente.nl

Adoption and deployments:

We see an increasing number of

SSH attacks. Measurements show that a typical NREN enables for more than 1000 attacks per

day. While few of these are

successful (i.e. end in a

compromise), the ones that do

succeed can cause severe damage in a plethora of different

ways.

• Scalable, deployed in NREN with up to 13 backbone links • Privacy preserving

• No performance impact on the network level

• Accurate detection for different phases within an attack

• Easily deployed as an NfSen plugin

SSHCure is able to analyze large amount of flow data and show what is really going on in the network, alerting

administrators in real time.

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