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This is an OASIS TC Open Repository <https://www.oasis-open.org/resources/open- repositories/>
.
See the Governance <#governance>
section for more information.
The pattern-matcher is a prototype software tool for matching STIX Observed Data content against patterns used in STIX Indicators. The matcher accepts a pattern and one or more timestamped observations, and determines whether the observations match the criteria specified by the pattern. The purpose of this tool is to evaluate examples and test cases which implement the patterning specification, as a form of executable documentation and to verify patterns express the desired criteria.
Python 3.6+
ANTLR Python Runtime (4.7+)
python-dateutil (https://dateutil.readthedocs.io/en/stable/)
stix2-patterns (https://github.com/oasis-open/cti-pattern-validator)
(For running tests) - pytest (http://pytest.org/latest/getting-started.html)
Install with pip <https://pip.pypa.io/en/stable/>
__:
.. code-block:: bash
$ pip install stix2-matcher
Installing the package creates a stix2-matcher
script:
::
$ stix2-matcher -h
usage: stix2-matcher [-h] -p PATTERNS -f FILE [-e ENCODING] [-v] [-s STIX_VERSION]
Match STIX Patterns to STIX Observed Data
optional arguments:
-h, --help show this help message and exit
-p PATTERNS, --patterns PATTERNS
Specify a file containing STIX Patterns,
one per line.
-f FILE, --file FILE A file containing JSON list of STIX
observed-data SDOs
to match against.
-e ENCODING, --encoding ENCODING
Set encoding used for reading observation
and pattern
files. Must be an encoding name Python
understands.
Default is utf8.
-v, --verbose Be verbose
-s STIX_VERSION, --stix_version STIX_VERSION
Stix specification version. Default is 2.0
The STIX Pattern Matcher’s test suite can be run with pytest
_.
The ANTLR pattern grammar is maintained in the stix2-json-schemas
_
repository. If the grammar changes, the code in this repository should
be updated to match. To do so, use the Java ANTLR package to generate
new Python source files. (The .jar file is not needed for normal use
of
the validator).
Download antlr-4.7-complete.jar from http://www.antlr.org/download/
Clone the stix2-json-schemas repository or download the STIXPattern.g4 file.
Change to the directory containing the STIXPattern.g4 file.
Run the following command
.. code:: bash
$ java -jar "/path/to/antlr-4.7-complete.jar" -Dlanguage=Python3 STIXPattern.g4 -o /path/to/cti-pattern-matcher/stix2matcher/grammars
Commit the resulting files to git.
This GitHub public repository (
https://github.com/oasis-open/cti-pattern-matcher ) was
proposed
and approved
[bis
] by the OASIS Cyber Threat Intelligence (CTI) TC
as an OASIS TC Open Repository
_ to support development of open
source resources related to Technical Committee work.
While this TC Open Repository remains associated with the sponsor TC,
its
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participation rules, and other matters of governance are separate and distinct
_ from the OASIS TC Process and related policies.
All contributions made to this TC Open Repository are subject to open
source license terms expressed in the BSD-3-Clause License
. That
license was selected as the declared "Applicable License"
when the
TC Open Repository was created.
As documented in "Public Participation Invited"
\ “, contributions to
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Participation
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_.
Current Maintainers of this TC Open Repository
Jason Keirstead <mailto:Jason.Keirstead@ca.ibm.com>
; GitHub ID:
https://github.com/JasonKeirstead; WWW: IBM <http://www.ibm.com/>
Md Azam <mailto:mdazam@ca.ibm.com>
; GitHub ID:
https://github.com/mdazam1942; WWW: IBM <http://www.ibm.com/>
Danny Elliott <mailto:Danny.Elliott@ibm.com>
; GitHub ID:
https://github.com/delliott90; WWW: IBM <http://www.ibm.com/>
TC Open Repositories - Overview and Resources
_Frequently Asked Questions
_Open Source Licenses
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_Maintainers’ Guidelines and Agreement
_Questions or comments about this TC Open Repository’s activities
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__. Please send
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.. TC Open Repositories - Overview and Resources
: https://www.oasis-open.org/resources/open-repositories/
.. OASIS TC Open Repository
: https://www.oasis-open.org/resources/open-repositories/
.. _Frequently Asked Questions: https://www.oasis-open.org/resources/open-repositories/faq
.. _Open Source Licenses: https://www.oasis-open.org/resources/open-repositories/licenses
.. _Contributor License Agreements (CLAs): https://www.oasis-open.org/resources/open-repositories/cla
.. _Maintainers’ Guidelines and Agreement: https://www.oasis-open.org/resources/open-repositories/maintainers-guide
.. _Maintainers: https://www.oasis-open.org/resources/open-repositories/maintainers-guide
.. _pull requests: https://github.com/oasis-open/cti-pattern-matcher/blob/master/CONTRIBUTING.md#fork-and-pull-collaboration-model
.. _preserving: https://www.oasis-open.org/policies-guidelines/open-repositories#repositoryManagement
.. _consensus agreements: https://www.oasis-open.org/resources/open-repositories/maintainers-guide#additionalMaintainers
.. _Chris Lenk: mailto:clenk@mitre.org
.. _MITRE: https://www.mitre.org/
.. _proposed: https://lists.oasis-open.org/archives/cti/201610/msg00106.html
.. _approved: https://lists.oasis-open.org/archives/cti/201610/msg00126.html
.. _bis: https://issues.oasis-open.org/browse/TCADMIN-2477
.. _OASIS Cyber Threat Intelligence (CTI) TC: https://www.oasis-open.org/committees/cti/
.. _separate and distinct: https://github.com/oasis-open/cti-pattern-matcher/blob/master/CONTRIBUTING.md#governance-distinct-from-oasis-tc-process
.. BSD-3-Clause License: https://www.oasis-open.org/sites/www.oasis-open.org/files/BSD-3-Clause.txt
.. "Applicable License": https://www.oasis-open.org/resources/open-repositories/licenses
.. _"Public Participation Invited": https://github.com/oasis-open/cti-pattern-matcher/blob/master/CONTRIBUTING.md#public-participation-invited
.. _OASIS TC Open Repository Guidelines and Procedures: https://www.oasis-open.org/policies-guidelines/open-repositories
.. _LICENSE: https://github.com/oasis-open/cti-pattern-matcher/blob/master/LICENSE
.. _Individual Contributor License Agreement: https://www.oasis-open.org/resources/open-repositories/cla/individual-cla
.. _pytest: http://pytest.org
.. _stix2-json-schemas: https://github.com/oasis-open/cti-stix2-json-schemas/blob/master/pattern_grammar/STIXPattern.g4
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