[
https://bro-tracker.atlassian.net/browse/BIT-76?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16819#comment-16819
]
Jon Siwek commented on BIT-76:
------------------------------
{quote}
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.
{quote}
I think that's mostly a result of some difficulty in hooking up the current
HTTP_Analyzer w/ the FAF -- the protocol analyzer didn't have direct access to
particular entities that are in-flight, so HTTP_Analyzer::Done() has a
catch-all file_mgr->EndOfFile(). In this case, that means asking the
script-layer to return a file handle for the current entity, but that
ultimately just ends up saying "I haven't seen anything; there's nothing there".
Agree that it's suboptimal. I think improving would require changes to HTTP
analyzer (or maybe just waiting for the binpac++ version? :)).
> 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.
--
This message was sent by Atlassian JIRA
(v6.3-OD-06-017#6327)
_______________________________________________
bro-dev mailing list
[email protected]
http://mailman.icsi.berkeley.edu/mailman/listinfo/bro-dev
