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Measured Features for Detecting Attacks

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simon Guest	Posted: Thu Jun 19, 2008 5:03 pm    Post subject: Measured Features for Detecting Attacks Hi, I find that many network attacks can be detected by measuring one single feature. For example, the SYN Flood can be detected by counting the number of SYN packets sent to a destination address. The measured feature is the number of SYN packets. Is there an attack that should be detected by at least two features? Can anyone give me an example and the relevant features? Thanks a lot! Simon
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Ertugrul Söylemez Guest	Posted: Fri Jun 20, 2008 11:01 am    Post subject: Re: Measured Features for Detecting Attacks simon <Simon.SCh.000@gmail.com> wrote: Quote: Hi, I find that many network attacks can be detected by measuring one single feature. For example, the SYN Flood can be detected by counting the number of SYN packets sent to a destination address. The measured feature is the number of SYN packets. Is there an attack that should be detected by at least two features? Can anyone give me an example and the relevant features? You should be more accurate as to what a "feature" is, but I can give you two examples of attacks, which require measuring as many features as possible. 1. Man in the middle (MITM) attack: A perfect MITM attack against a non-authenticated cryptosystem is impossible to detect. All features you measure only give evidences. 2. Side channel attack: In an ideal case for the attacker, a side channel attack is impossible to detect. All features you measure only give evidences. Greets, Ertugrul. -- http://ertes.de/
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