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Re: STIX 2.1 WD04 -> WD05 Changes
For those interested, the complete set of changes is below (we had missed a few things earlier): Part 1: Master Common property âspec_versionâ: implicit value is now 2.1 for all SCOs, still 2.0 for all other objects SCO Common property renamed: is_defanged -> defanged In 3.5 Object Creator, a MAY was changed to a MUST, which could be read to mean that created_byÂ_ref SHOULD be present on all objects that can have this property Language Content Object_modified now optional Part 2: SDOs and SROs Attack Pattern New property: aliases Grouping object_refs are now required Indicator New property: pattern_type New property: pattern_version New relationship: indicator based-on observed-data name, description SHOULD be present Infrastructure New property: aliases Location New property: name Property renamed: code -> street_address Malware New relationship: malware originates-from location Malware Analysis One of av_result or analysis_sco_refs MUST be present Property renamed: module -> modules Property type changed: string -> list of type string Property renamed: av_engine_version -> analysis_engine_version Property renamed: av_definition_version -> analysis_definition_version Property renamed: host_vm -> host_vm_ref Property renamed: operating_system -> operating_system_ref Property renamed: installed_software -> installed_software_refs Observed Data Property deprecated: objects Removed a MUST requirement (that we couldnât validate), so now observed data can contain SCOs not related to each other Threat Actor New property: first_seen New property: last_seen Tool New relationship: tool has vulnerability Vulnerability Relationship removed: vulnerability impacts infrastructure, tool Sighting New property: description Part 3: SCOs Directory Object Property renamed: created -> ctime Property renamed: modified -> mtime Property renamed: accessed-> atime Domain Name Object Property deprecated: resolves_to_refs (was already optional in WD 04) New relationship: domain-name resolves-to domain-name New relationship: domain-name resolves-to ipv4-addr New relationship: domain-name resolves-to ipv6-addr File Object Property renamed: created -> ctime Property renamed: modified -> mtime Property renamed: accessed-> atime IPv4 Address Object (ipv4-addr) Property deprecated: resolves_to_refs (was already optional in WD 04) Property deprecated: belongs_to_refs (was already optional in WD 04) New relationship: ipv4-addr resolves-to mac-addr New relationship: ipv4-addr belongs-to autonomous-system IPv6 Address Object (ipv6-addr) Property deprecated: resolves_to_refs (was already optional in WD 04) Property deprecated: belongs_to_refs (was already optional in WD 04) New relationship: ipv6-addr resolves-to mac-addr New relationship: ipv6-addr belongs-to autonomous-system Windows Registry Key Object Property renamed: modified -> modified_time ID contributing properties: all items in values MUST be included) Part 4: Vocabs Implementation Language (implementation-language-ov) New value: perl New value: ruby Part 5: Patterns An Observation _expression_ MUST NOT have more than one Qualifier of a particular type For âa REPEATS x TIMESâ a MUST match at least x times (changed from âexactly x timesâ) Comparison expressions MUST evaluate to false if evaluated against one or more Object Paths that are not present or cannot be obtained New set operator for Comparison Expressions: EXISTS Regards, Ivan From: Ivan Kirillov <> Date: Monday, July 15, 2019 at 10:03 AM To: "" <> Subject: STIX 2.1 WD04 -> WD05 Changes All, One of our team members put together a list of changes between WD04 and WD05 for those interested: Part 2: SDOs and SROs Attack Pattern New property: aliases Grouping object_refs are now required Indicator New property: pattern_type New property: pattern_version New relationship: indicator based-on observed-data Infrastructure New property: aliases Location New property: name Property renamed: code -> street_address Malware New relationship: malware originates-from location Malware Analysis Property renamed: module -> modules Property type changed: string -> list of type string Property renamed: av_engine_version -> analysis_engine_version Property renamed: av_definition_version -> analysis_definition_version Property renamed: host_vm -> host_vm_ref Property renamed: operating_system -> operating_system_ref Property renamed: installed_software -> installed_software_refs Threat Actor New property: first_seen New property: last_seen Tool New relationship: tool has vulnerability Vulnerability Relationship removed: vulnerability impacts infrastructure, tool Sighting New property: description Part 4: Vocabs Implementation Language (implementation-language-ov) New value: perl New value: ruby Regards, Ivan
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