Re: HTTP LOG files Labeling
Stefano Zanero <[email protected]>
| Newsgroups | gmane.comp.security.ids |
|---|---|
| Organization | DEI - Politecnico di Milano |
| Message-ID | <[email protected]> |
[email protected] wrote: > In fact, we have designed a (good) online and adaptive anomaly > detection method for detecting HTTP attacks. How do you know, if you don't have a testing dataset yet ? > We have obtained the detection results with our methods but we have > to know which lines are real attacks and which lines are not so that > we can compute the true positive rates and false positive rates to > evaluate our anomaly detection methods. ... so how do you know your method is good ? You haven't evaluated it yet... > Ideally labeling the HTTP logs is to use a precise signature-based > IDS (e.g., snort), but we didn't use it during data collection. That's senseless, since: a) Snort may have false negatives, or exhibit noncontextual alerts because of misconfiguration b) An anomaly detector should flag things that a misuse detector by definition doesn't care about you need a dataset which is hand labelled, sorry. Stefano ------------------------------------------------------------------------ Test Your IDS Is your IDS deployed correctly? Find out quickly and easily by testing it with real-world attacks from CORE IMPACT. Go to http://www.coresecurity.com/index.php5?module=Form&action=impact&campaign=intro_sfw to learn more. ------------------------------------------------------------------------