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https://bro-tracker.atlassian.net/browse/BIT-1238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18704#comment-18704
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Seth Hall commented on BIT-1238:
--------------------------------
This issue is now being addressed through the branch named:
topic/seth/files-reassembly-and-mime-updates
It's going to be updates for file reassembly and the large batch of mime type
identification that I have been preparing. That branch also has your x-tar
issue addressed. I looked at a number of tar files and updated the pattern
beyond the one that you created (it still was doing some incorrect matching for
me).
> High false-positive for application/x-tar signature
> ---------------------------------------------------
>
> Key: BIT-1238
> URL: https://bro-tracker.atlassian.net/browse/BIT-1238
> Project: Bro Issue Tracker
> Issue Type: Problem
> Components: Bro
> Affects Versions: 2.3
> Reporter: Brian O'Berry
> Assignee: Seth Hall
> Labels: file, mime, signature
> Attachments: test.tar.gz
>
>
> The following signature in base/frameworks/files/magic/general.sig frequently
> triggers on text files in our environment, and includes a strength value
> higher than GNU and POSIX tar signatures in libmagic.sig.
> {code}
> signature file-tar {
> file-magic /([[:print:]\x00]){100}(([[:digit:]\x00\x20]){8}){3}/
> file-mime "application/x-tar", 150
> }
> {code}
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