[Bro-Dev] [JIRA] (BIT-76) Low port trolling vs. backscatter

[Seth Hall (JIRA)]

    [ https://bro-tracker.atlassian.net/browse/BIT-76?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16816#comment-16816 ] 

Seth Hall commented on BIT-76:
------------------------------

First, to get one thing out of the way, scan.bro doesn't fire on this trace (and I don't think it should).

But Vlad pointed out something interesting about this trace.  It seems to cause the get_file_handle event to get generated quite a few times.  That really doesn't make any sense to me.  Something to look into at some point.

> Low port trolling vs. backscatter
> ---------------------------------
>
>                 Key: BIT-76
>                 URL: https://bro-tracker.atlassian.net/browse/BIT-76
>             Project: Bro Issue Tracker
>          Issue Type: Problem
>          Components: Bro
>            Reporter: Vern Paxson
>            Priority: Low
>              Labels: scan
>         Attachments: backscatter.trace
>
>
> Running on the attached trace, mt.bro correctly diagnoses backscatter, but then goes on to later complain about low-port trolling.  Seems this latter should be suppressed, as it's just a follow-on from the backscatter.



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