CTI STIX Subcommittee

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  • 1.  FW: Suspicious Activity Object

    Posted 07-23-2018 14:09
    It seems I was sending these emails to the wrong distro, hopefully this works this time. Interested in everyone's thoughts Below is a link to the Suspicious Activity Object proposal. As requested I updated the object to use the embedded reference, similar to the Malware proposal rather than using a relationship. Comments welcome. https://docs.google.com/document/d/1I5Cgqfk1Krt9EnYJZcyTLS3c5BtZ5uqvTDXI_i7O JrU/edit?usp=sharing Attachment: smime.p7s Description: S/MIME cryptographic signature


  • 2.  Re: [cti-stix] FW: Suspicious Activity Object

    Posted 07-23-2018 14:47
    I can't access the document; are the permissions open to the public? - Jason Keirstead Lead Architect - IBM Security Cloud www.ibm.com/security "Things may come to those who wait, but only the things left by those who hustle." - Unknown From:         "Katz, Gary CTR DC3/TSD" <Gary.Katz.ctr@dc3.mil> To:         "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org> Date:         07/23/2018 11:10 AM Subject:         [cti-stix] FW: Suspicious Activity Object Sent by:         <cti-stix@lists.oasis-open.org> It seems I was sending these emails to the wrong distro, hopefully this works this time.  Interested in everyone's thoughts Below is a link to the Suspicious Activity Object proposal.  As requested I updated the object to use the embedded reference, similar to the Malware proposal rather than using a relationship.  Comments welcome.   https://docs.google.com/document/d/1I5Cgqfk1Krt9EnYJZcyTLS3c5BtZ5uqvTDXI_i7O JrU/edit?usp=sharing


  • 3.  Re: [cti-stix] FW: Suspicious Activity Object

    Posted 07-23-2018 15:11




    The link was messed up:
    https://docs.google.com/document/d/1I5Cgqfk1Krt9EnYJZcyTLS3c5BtZ5uqvTDXI_i7OJrU/edit

     

    From: <cti-stix@lists.oasis-open.org> on behalf of Jason Keirstead <Jason.Keirstead@ca.ibm.com>
    Date: Monday, July 23, 2018 at 10:46 AM
    To: "Katz, Gary" <gary.katz.ctr@dc3.mil>
    Cc: "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org>
    Subject: Re: [cti-stix] FW: Suspicious Activity Object


     

    I can't access the document; are the permissions open to the public?

    -
    Jason Keirstead
    Lead Architect - IBM Security Cloud
    www.ibm.com/security

    "Things may come to those who wait, but only the things left by those who hustle." - Unknown





    From:         "Katz, Gary CTR DC3/TSD" <Gary.Katz.ctr@dc3.mil>
    To:         "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org>
    Date:         07/23/2018 11:10 AM
    Subject:         [cti-stix] FW: Suspicious Activity Object
    Sent by:         <cti-stix@lists.oasis-open.org>






    It seems I was sending these emails to the wrong distro, hopefully this
    works this time.  Interested in everyone's thoughts


    Below is a link to the Suspicious Activity Object proposal.  As requested I
    updated the object to use the embedded reference, similar to the Malware
    proposal rather than using a relationship.  Comments welcome.  

    https://docs.google.com/document/d/1I5Cgqfk1Krt9EnYJZcyTLS3c5BtZ5uqvTDXI_i7O
    JrU/edit?usp=sharing











  • 4.  RE: [cti-stix] FW: Suspicious Activity Object

    Posted 07-23-2018 15:40
    Thanks Rich   From: Struse, Richard J. <rjs@mitre.org> Sent: Monday, July 23, 2018 11:11 AM To: Jason Keirstead <Jason.Keirstead@ca.ibm.com>; Katz, Gary CTR DC3/TSD <Gary.Katz.ctr@dc3.mil> Cc: cti-stix@lists.oasis-open.org Subject: [Non-DoD Source] Re: [cti-stix] FW: Suspicious Activity Object   The link was messed up: https://docs.google.com/document/d/1I5Cgqfk1Krt9EnYJZcyTLS3c5BtZ5uqvTDXI_i7OJrU/edit   From: <cti-stix@lists.oasis-open.org> on behalf of Jason Keirstead <Jason.Keirstead@ca.ibm.com> Date: Monday, July 23, 2018 at 10:46 AM To: "Katz, Gary" <gary.katz.ctr@dc3.mil> Cc: "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org> Subject: Re: [cti-stix] FW: Suspicious Activity Object   I can't access the document; are the permissions open to the public? - Jason Keirstead Lead Architect - IBM Security Cloud www.ibm.com/security "Things may come to those who wait, but only the things left by those who hustle." - Unknown From:         "Katz, Gary CTR DC3/TSD" <Gary.Katz.ctr@dc3.mil> To:         "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org> Date:         07/23/2018 11:10 AM Subject:         [cti-stix] FW: Suspicious Activity Object Sent by:         <cti-stix@lists.oasis-open.org> It seems I was sending these emails to the wrong distro, hopefully this works this time.  Interested in everyone's thoughts Below is a link to the Suspicious Activity Object proposal.  As requested I updated the object to use the embedded reference, similar to the Malware proposal rather than using a relationship.  Comments welcome.   https://docs.google.com/document/d/1I5Cgqfk1Krt9EnYJZcyTLS3c5BtZ5uqvTDXI_i7O JrU/edit?usp=sharing Attachment: smime.p7s Description: S/MIME cryptographic signature


  • 5.  RE: [cti-stix] FW: Suspicious Activity Object

    Posted 07-23-2018 18:03
    I got in - commenting seems disabled so I will post them here In general - having a hard time with the borderline between this object, and an intrusion set? The difference seems to be that, for Intrusion Set, we know who they are. For this one, we don't. If that is the main difference, why are there so many distinct top level properties? A Suspicious activity object allows individuals to group information together related to malicious activity, such as an incident, attempted incident or suspicious activity observed outside of their network. An Intrusion Set is a grouped set of adversarial behaviors and resources with common properties that is believed to be orchestrated by a single organization. An Intrusion Set may capture multiple Campaigns or other activities that are all tied together by shared attributes indicating a common known or unknown Threat Actor. RE outcome / suspicious-activity-outcome-ov - - Suggest the names just be "successful" and "unsuccessful", as "successful-compromise" assumes already the objective was compromise, which perhaps it was not. - Should "in progress" be an option? Or is that "unknown"? RE compromise-type / suspicious-activity-compromise-type-ov -         - Shouldn't this same type of data be able to be used in Intrusion Set? Whats the difference between this and "goals" of intrusion set... seems fuzzy?  I know we wanted to encode "destrictive" on Intrusion Set in the past somehow... RE observation-refs - Shouldn't these be sightings? This object is the epitome of a sighting is it not? - Jason Keirstead Lead Architect - IBM Security Cloud www.ibm.com/security "Things may come to those who wait, but only the things left by those who hustle." - Unknown From:         "Katz, Gary CTR DC3/TSD" <Gary.Katz.ctr@dc3.mil> To:         "Struse, Richard J." <rjs@mitre.org>, Jason Keirstead <Jason.Keirstead@ca.ibm.com> Cc:         "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org> Date:         07/23/2018 12:40 PM Subject:         RE: [cti-stix] FW: Suspicious Activity Object Thanks Rich   From: Struse, Richard J. <rjs@mitre.org> Sent: Monday, July 23, 2018 11:11 AM To: Jason Keirstead <Jason.Keirstead@ca.ibm.com>; Katz, Gary CTR DC3/TSD <Gary.Katz.ctr@dc3.mil> Cc: cti-stix@lists.oasis-open.org Subject: [Non-DoD Source] Re: [cti-stix] FW: Suspicious Activity Object   The link was messed up: https://docs.google.com/document/d/1I5Cgqfk1Krt9EnYJZcyTLS3c5BtZ5uqvTDXI_i7OJrU/edit   From: <cti-stix@lists.oasis-open.org> on behalf of Jason Keirstead <Jason.Keirstead@ca.ibm.com> Date: Monday, July 23, 2018 at 10:46 AM To: "Katz, Gary" <gary.katz.ctr@dc3.mil> Cc: "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org> Subject: Re: [cti-stix] FW: Suspicious Activity Object   I can't access the document; are the permissions open to the public? - Jason Keirstead Lead Architect - IBM Security Cloud www.ibm.com/security "Things may come to those who wait, but only the things left by those who hustle." - Unknown From:         "Katz, Gary CTR DC3/TSD" <Gary.Katz.ctr@dc3.mil> To:         "cti-stix@lists.oasis-open.org" <cti-stix@lists.oasis-open.org> Date:         07/23/2018 11:10 AM Subject:         [cti-stix] FW: Suspicious Activity Object Sent by:         <cti-stix@lists.oasis-open.org> It seems I was sending these emails to the wrong distro, hopefully this works this time.  Interested in everyone's thoughts Below is a link to the Suspicious Activity Object proposal.  As requested I updated the object to use the embedded reference, similar to the Malware proposal rather than using a relationship.  Comments welcome.   https://docs.google.com/document/d/1I5Cgqfk1Krt9EnYJZcyTLS3c5BtZ5uqvTDXI_i7O JrU/edit?usp=sharing