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Subject: Re: [cti-cybox] CybOX 3.0: File Object Refactoring
“Extension_type” is just the required property on all extensions that defines the name of the object extension (which unfortunately collides with the concept of file extensions); I agree with Jason that “metadata_type” is rather abstract and so it may
not be better. I’m fine with just “type” if we feel that it would be a better, standardized approach (it’s actually what we originally had) - the only issue there is that there are other places where “type” is used (e.g., [1]), so they would have to be changed
since “type” would effectively become a reserved keyword.
I also concur with Mark’s points on MIMEType and Magic Number.
[1] http://stixproject.github.io/data-model/1.2/WinExecutableFileObj/WindowsExecutableFileObjectType/
Regards,
Ivan
From: <cti-cybox@lists.oasis-open.org> on behalf of John Wunder <jwunder@mitre.org>
Date: Tuesday, December 22, 2015 at 7:10 AM To: "cti-cybox@lists.oasis-open.org" <cti-cybox@lists.oasis-open.org> Subject: Re: [cti-cybox] CybOX 3.0: File Object Refactoring I agree w/ all of Mark’s comments.
Regarding #1, would this be a good place to use the “type” field that EclecticIQ has added to their JSON? It seems to serve the same purpose and if we standardize on that name across STIX, CybOX, and TAXII we’ll make things much easier for users.
John
From: <cti-cybox@lists.oasis-open.org> on behalf of Mark Davidson <mdavidson@soltra.com>
Date: Tuesday, December 22, 2015 at 7:13 AM To: Ivan Kirillov <ikirillov@mitre.org>, Jason Keirstead <Jason.Keirstead@ca.ibm.com> Cc: "Wunder, John A." <jwunder@mitre.org>, Jerome Athias <athiasjerome@gmail.com>, Patrick Maroney <Pmaroney@specere.org>, Sean Barnum <sbarnum@mitre.org>, John Anderson <janderson@soltra.com>, Paul Patrick <ppatrick@isightpartners.com>, "Jordan, Bret" <bret.jordan@bluecoat.com>, "cti-cybox@lists.oasis-open.org" <cti-cybox@lists.oasis-open.org>, Terry MacDonald <terry@soltra.com> Subject: Re: [cti-cybox] CybOX 3.0: File Object Refactoring Overall I like the proposal.
I have a few comments:
Thank you.
-Mark
From: <cti-cybox@lists.oasis-open.org> on behalf of "Kirillov, Ivan A." <ikirillov@mitre.org>
Date: Monday, December 21, 2015 at 3:03 PM To: Jason Keirstead <Jason.Keirstead@ca.ibm.com> Cc: "Wunder, John A." <jwunder@mitre.org>, Jerome Athias <athiasjerome@gmail.com>, Patrick Maroney <Pmaroney@specere.org>, "Barnum, Sean D." <sbarnum@mitre.org>, John Anderson <janderson@soltra.com>, Paul Patrick <ppatrick@isightpartners.com>, "Jordan, Bret" <bret.jordan@bluecoat.com>, "cti-cybox@lists.oasis-open.org" <cti-cybox@lists.oasis-open.org>, Terry MacDonald <terry@soltra.com> Subject: Re: [cti-cybox] CybOX 3.0: File Object Refactoring Just a heads up that we’ve updated the File Object Refactoring proposal [1] to take into account some of the great points brought up around file metadata and masquerading discussion during our last SC call. Let us know what you think.
FileMetadataExtension
A default extension point for capturing general classes of file metadata. A sub-class of the
FileMismatchEnum
Regards,
Ivan
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