822 lines
35 KiB
Python
822 lines
35 KiB
Python
"""STIX 2.0 Cyber Observable Objects.
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Embedded observable object types, such as Email MIME Component, which is
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embedded in Email Message objects, inherit from ``_STIXBase20`` instead of
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_Observable and do not have a ``_type`` attribute.
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"""
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from collections import OrderedDict
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import itertools
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from ..custom import _custom_extension_builder, _custom_observable_builder
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from ..exceptions import AtLeastOnePropertyError, DependentPropertiesError
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from ..properties import (
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BinaryProperty, BooleanProperty, DictionaryProperty,
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EmbeddedObjectProperty, EnumProperty, ExtensionsProperty, FloatProperty,
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HashesProperty, HexProperty, IntegerProperty, ListProperty,
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ObjectReferenceProperty, StringProperty, TimestampProperty, TypeProperty,
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)
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from .base import _Extension, _Observable, _STIXBase20
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class Artifact(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716219>`__.
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""" # noqa
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_type = 'artifact'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('mime_type', StringProperty()),
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('payload_bin', BinaryProperty()),
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('url', StringProperty()),
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('hashes', HashesProperty(spec_version='2.0')),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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def _check_object_constraints(self):
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super(Artifact, self)._check_object_constraints()
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self._check_mutually_exclusive_properties(['payload_bin', 'url'])
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self._check_properties_dependency(['hashes'], ['url'])
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class AutonomousSystem(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716221>`__.
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""" # noqa
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_type = 'autonomous-system'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('number', IntegerProperty(required=True)),
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('name', StringProperty()),
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('rir', StringProperty()),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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class Directory(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716223>`__.
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""" # noqa
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_type = 'directory'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('path', StringProperty(required=True)),
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('path_enc', StringProperty()),
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# these are not the created/modified timestamps of the object itself
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('created', TimestampProperty()),
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('modified', TimestampProperty()),
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('accessed', TimestampProperty()),
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('contains_refs', ListProperty(ObjectReferenceProperty(valid_types=['file', 'directory']))),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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class DomainName(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716225>`__.
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""" # noqa
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_type = 'domain-name'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('value', StringProperty(required=True)),
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('resolves_to_refs', ListProperty(ObjectReferenceProperty(valid_types=['ipv4-addr', 'ipv6-addr', 'domain-name']))),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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class EmailAddress(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716227>`__.
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""" # noqa
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_type = 'email-addr'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('value', StringProperty(required=True)),
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('display_name', StringProperty()),
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('belongs_to_ref', ObjectReferenceProperty(valid_types='user-account')),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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class EmailMIMEComponent(_STIXBase20):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716231>`__.
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""" # noqa
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_properties = OrderedDict([
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('body', StringProperty()),
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('body_raw_ref', ObjectReferenceProperty(valid_types=['artifact', 'file'])),
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('content_type', StringProperty()),
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('content_disposition', StringProperty()),
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])
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def _check_object_constraints(self):
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super(EmailMIMEComponent, self)._check_object_constraints()
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self._check_at_least_one_property(['body', 'body_raw_ref'])
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class EmailMessage(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716229>`__.
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""" # noqa
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_type = 'email-message'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('is_multipart', BooleanProperty(required=True)),
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('date', TimestampProperty()),
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('content_type', StringProperty()),
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('from_ref', ObjectReferenceProperty(valid_types='email-addr')),
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('sender_ref', ObjectReferenceProperty(valid_types='email-addr')),
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('to_refs', ListProperty(ObjectReferenceProperty(valid_types='email-addr'))),
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('cc_refs', ListProperty(ObjectReferenceProperty(valid_types='email-addr'))),
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('bcc_refs', ListProperty(ObjectReferenceProperty(valid_types='email-addr'))),
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('subject', StringProperty()),
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('received_lines', ListProperty(StringProperty)),
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('additional_header_fields', DictionaryProperty(spec_version="2.0")),
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('body', StringProperty()),
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('body_multipart', ListProperty(EmbeddedObjectProperty(type=EmailMIMEComponent))),
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('raw_email_ref', ObjectReferenceProperty(valid_types='artifact')),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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def _check_object_constraints(self):
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super(EmailMessage, self)._check_object_constraints()
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self._check_properties_dependency(['is_multipart'], ['body_multipart'])
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if self.get('is_multipart') is True and self.get('body'):
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# 'body' MAY only be used if is_multipart is false.
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raise DependentPropertiesError(self.__class__, [('is_multipart', 'body')])
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class ArchiveExt(_Extension):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716235>`__.
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""" # noqa
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_type = 'archive-ext'
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_properties = OrderedDict([
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('contains_refs', ListProperty(ObjectReferenceProperty(valid_types='file'), required=True)),
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('version', StringProperty()),
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('comment', StringProperty()),
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])
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class AlternateDataStream(_STIXBase20):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716239>`__.
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""" # noqa
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_properties = OrderedDict([
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('name', StringProperty(required=True)),
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('hashes', HashesProperty(spec_version='2.0')),
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('size', IntegerProperty()),
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])
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class NTFSExt(_Extension):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716237>`__.
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""" # noqa
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_type = 'ntfs-ext'
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_properties = OrderedDict([
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('sid', StringProperty()),
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('alternate_data_streams', ListProperty(EmbeddedObjectProperty(type=AlternateDataStream))),
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])
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class PDFExt(_Extension):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716241>`__.
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""" # noqa
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_type = 'pdf-ext'
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_properties = OrderedDict([
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('version', StringProperty()),
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('is_optimized', BooleanProperty()),
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('document_info_dict', DictionaryProperty(spec_version="2.0")),
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('pdfid0', StringProperty()),
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('pdfid1', StringProperty()),
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])
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class RasterImageExt(_Extension):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716243>`__.
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""" # noqa
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_type = 'raster-image-ext'
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_properties = OrderedDict([
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('image_height', IntegerProperty()),
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('image_width', IntegerProperty()),
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('bits_per_pixel', IntegerProperty()),
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('image_compression_algorithm', StringProperty()),
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('exif_tags', DictionaryProperty(spec_version="2.0")),
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])
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class WindowsPEOptionalHeaderType(_STIXBase20):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716248>`__.
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""" # noqa
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_properties = OrderedDict([
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('magic_hex', HexProperty()),
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('major_linker_version', IntegerProperty()),
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('minor_linker_version', IntegerProperty()),
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('size_of_code', IntegerProperty()),
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('size_of_initialized_data', IntegerProperty()),
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('size_of_uninitialized_data', IntegerProperty()),
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('address_of_entry_point', IntegerProperty()),
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('base_of_code', IntegerProperty()),
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('base_of_data', IntegerProperty()),
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('image_base', IntegerProperty()),
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('section_alignment', IntegerProperty()),
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('file_alignment', IntegerProperty()),
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('major_os_version', IntegerProperty()),
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('minor_os_version', IntegerProperty()),
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('major_image_version', IntegerProperty()),
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('minor_image_version', IntegerProperty()),
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('major_subsystem_version', IntegerProperty()),
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('minor_subsystem_version', IntegerProperty()),
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('win32_version_value_hex', HexProperty()),
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('size_of_image', IntegerProperty()),
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('size_of_headers', IntegerProperty()),
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('checksum_hex', HexProperty()),
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('subsystem_hex', HexProperty()),
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('dll_characteristics_hex', HexProperty()),
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('size_of_stack_reserve', IntegerProperty()),
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('size_of_stack_commit', IntegerProperty()),
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('size_of_heap_reserve', IntegerProperty()),
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('size_of_heap_commit', IntegerProperty()),
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('loader_flags_hex', HexProperty()),
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('number_of_rva_and_sizes', IntegerProperty()),
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('hashes', HashesProperty(spec_version='2.0')),
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])
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def _check_object_constraints(self):
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super(WindowsPEOptionalHeaderType, self)._check_object_constraints()
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self._check_at_least_one_property()
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class WindowsPESection(_STIXBase20):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716250>`__.
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""" # noqa
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_properties = OrderedDict([
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('name', StringProperty(required=True)),
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('size', IntegerProperty()),
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('entropy', FloatProperty()),
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('hashes', HashesProperty(spec_version='2.0')),
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])
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class WindowsPEBinaryExt(_Extension):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716245>`__.
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""" # noqa
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_type = 'windows-pebinary-ext'
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_properties = OrderedDict([
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('pe_type', StringProperty(required=True)), # open_vocab
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('imphash', StringProperty()),
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('machine_hex', HexProperty()),
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('number_of_sections', IntegerProperty()),
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('time_date_stamp', TimestampProperty(precision='second')),
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('pointer_to_symbol_table_hex', HexProperty()),
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('number_of_symbols', IntegerProperty()),
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('size_of_optional_header', IntegerProperty()),
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('characteristics_hex', HexProperty()),
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('file_header_hashes', HashesProperty(spec_version='2.0')),
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('optional_header', EmbeddedObjectProperty(type=WindowsPEOptionalHeaderType)),
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('sections', ListProperty(EmbeddedObjectProperty(type=WindowsPESection))),
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])
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class File(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716233>`__.
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""" # noqa
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_type = 'file'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('hashes', HashesProperty(spec_version='2.0')),
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('size', IntegerProperty()),
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('name', StringProperty()),
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('name_enc', StringProperty()),
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('magic_number_hex', HexProperty()),
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('mime_type', StringProperty()),
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# these are not the created/modified timestamps of the object itself
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('created', TimestampProperty()),
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('modified', TimestampProperty()),
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('accessed', TimestampProperty()),
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('parent_directory_ref', ObjectReferenceProperty(valid_types='directory')),
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('is_encrypted', BooleanProperty()),
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('encryption_algorithm', StringProperty()),
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('decryption_key', StringProperty()),
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('contains_refs', ListProperty(ObjectReferenceProperty)),
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('content_ref', ObjectReferenceProperty(valid_types='artifact')),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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def _check_object_constraints(self):
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super(File, self)._check_object_constraints()
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self._check_properties_dependency(['is_encrypted'], ['encryption_algorithm', 'decryption_key'])
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self._check_at_least_one_property(['hashes', 'name'])
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class IPv4Address(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716252>`__.
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""" # noqa
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_type = 'ipv4-addr'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('value', StringProperty(required=True)),
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('resolves_to_refs', ListProperty(ObjectReferenceProperty(valid_types='mac-addr'))),
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('belongs_to_refs', ListProperty(ObjectReferenceProperty(valid_types='autonomous-system'))),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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class IPv6Address(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716254>`__.
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""" # noqa
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_type = 'ipv6-addr'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('value', StringProperty(required=True)),
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('resolves_to_refs', ListProperty(ObjectReferenceProperty(valid_types='mac-addr'))),
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('belongs_to_refs', ListProperty(ObjectReferenceProperty(valid_types='autonomous-system'))),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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class MACAddress(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716256>`__.
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""" # noqa
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_type = 'mac-addr'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('value', StringProperty(required=True)),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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class Mutex(_Observable):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716258>`__.
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""" # noqa
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_type = 'mutex'
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_properties = OrderedDict([
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('type', TypeProperty(_type, spec_version='2.0')),
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('name', StringProperty(required=True)),
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('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
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])
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class HTTPRequestExt(_Extension):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716262>`__.
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""" # noqa
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_type = 'http-request-ext'
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_properties = OrderedDict([
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('request_method', StringProperty(required=True)),
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('request_value', StringProperty(required=True)),
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('request_version', StringProperty()),
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('request_header', DictionaryProperty(spec_version="2.0")),
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('message_body_length', IntegerProperty()),
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('message_body_data_ref', ObjectReferenceProperty(valid_types='artifact')),
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])
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class ICMPExt(_Extension):
|
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"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716264>`__.
|
|
""" # noqa
|
|
|
|
_type = 'icmp-ext'
|
|
_properties = OrderedDict([
|
|
('icmp_type_hex', HexProperty(required=True)),
|
|
('icmp_code_hex', HexProperty(required=True)),
|
|
])
|
|
|
|
|
|
class SocketExt(_Extension):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716266>`__.
|
|
""" # noqa
|
|
|
|
_type = 'socket-ext'
|
|
_properties = OrderedDict([
|
|
(
|
|
'address_family', EnumProperty(
|
|
allowed=[
|
|
"AF_UNSPEC",
|
|
"AF_INET",
|
|
"AF_IPX",
|
|
"AF_APPLETALK",
|
|
"AF_NETBIOS",
|
|
"AF_INET6",
|
|
"AF_IRDA",
|
|
"AF_BTH",
|
|
], required=True,
|
|
),
|
|
),
|
|
('is_blocking', BooleanProperty()),
|
|
('is_listening', BooleanProperty()),
|
|
(
|
|
'protocol_family', EnumProperty(
|
|
allowed=[
|
|
"PF_INET",
|
|
"PF_IPX",
|
|
"PF_APPLETALK",
|
|
"PF_INET6",
|
|
"PF_AX25",
|
|
"PF_NETROM",
|
|
],
|
|
),
|
|
),
|
|
('options', DictionaryProperty(spec_version="2.0")),
|
|
(
|
|
'socket_type', EnumProperty(
|
|
allowed=[
|
|
"SOCK_STREAM",
|
|
"SOCK_DGRAM",
|
|
"SOCK_RAW",
|
|
"SOCK_RDM",
|
|
"SOCK_SEQPACKET",
|
|
],
|
|
),
|
|
),
|
|
('socket_descriptor', IntegerProperty()),
|
|
('socket_handle', IntegerProperty()),
|
|
])
|
|
|
|
|
|
class TCPExt(_Extension):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716271>`__.
|
|
""" # noqa
|
|
|
|
_type = 'tcp-ext'
|
|
_properties = OrderedDict([
|
|
('src_flags_hex', HexProperty()),
|
|
('dst_flags_hex', HexProperty()),
|
|
])
|
|
|
|
|
|
class NetworkTraffic(_Observable):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716260>`__.
|
|
""" # noqa
|
|
|
|
_type = 'network-traffic'
|
|
_properties = OrderedDict([
|
|
('type', TypeProperty(_type, spec_version='2.0')),
|
|
('start', TimestampProperty()),
|
|
('end', TimestampProperty()),
|
|
('is_active', BooleanProperty()),
|
|
('src_ref', ObjectReferenceProperty(valid_types=['ipv4-addr', 'ipv6-addr', 'mac-addr', 'domain-name'])),
|
|
('dst_ref', ObjectReferenceProperty(valid_types=['ipv4-addr', 'ipv6-addr', 'mac-addr', 'domain-name'])),
|
|
('src_port', IntegerProperty()),
|
|
('dst_port', IntegerProperty()),
|
|
('protocols', ListProperty(StringProperty, required=True)),
|
|
('src_byte_count', IntegerProperty()),
|
|
('dst_byte_count', IntegerProperty()),
|
|
('src_packets', IntegerProperty()),
|
|
('dst_packets', IntegerProperty()),
|
|
('ipfix', DictionaryProperty(spec_version="2.0")),
|
|
('src_payload_ref', ObjectReferenceProperty(valid_types='artifact')),
|
|
('dst_payload_ref', ObjectReferenceProperty(valid_types='artifact')),
|
|
('encapsulates_refs', ListProperty(ObjectReferenceProperty(valid_types='network-traffic'))),
|
|
('encapsulates_by_ref', ObjectReferenceProperty(valid_types='network-traffic')),
|
|
('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
|
|
])
|
|
|
|
def _check_object_constraints(self):
|
|
super(NetworkTraffic, self)._check_object_constraints()
|
|
self._check_at_least_one_property(['src_ref', 'dst_ref'])
|
|
|
|
|
|
class WindowsProcessExt(_Extension):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716275>`__.
|
|
""" # noqa
|
|
|
|
_type = 'windows-process-ext'
|
|
_properties = OrderedDict([
|
|
('aslr_enabled', BooleanProperty()),
|
|
('dep_enabled', BooleanProperty()),
|
|
('priority', StringProperty()),
|
|
('owner_sid', StringProperty()),
|
|
('window_title', StringProperty()),
|
|
('startup_info', DictionaryProperty(spec_version="2.0")),
|
|
])
|
|
|
|
|
|
class WindowsServiceExt(_Extension):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716277>`__.
|
|
""" # noqa
|
|
|
|
_type = 'windows-service-ext'
|
|
_properties = OrderedDict([
|
|
('service_name', StringProperty(required=True)),
|
|
('descriptions', ListProperty(StringProperty)),
|
|
('display_name', StringProperty()),
|
|
('group_name', StringProperty()),
|
|
(
|
|
'start_type', EnumProperty(
|
|
allowed=[
|
|
"SERVICE_AUTO_START",
|
|
"SERVICE_BOOT_START",
|
|
"SERVICE_DEMAND_START",
|
|
"SERVICE_DISABLED",
|
|
"SERVICE_SYSTEM_ALERT",
|
|
],
|
|
),
|
|
),
|
|
('service_dll_refs', ListProperty(ObjectReferenceProperty(valid_types='file'))),
|
|
(
|
|
'service_type', EnumProperty(
|
|
allowed=[
|
|
"SERVICE_KERNEL_DRIVER",
|
|
"SERVICE_FILE_SYSTEM_DRIVER",
|
|
"SERVICE_WIN32_OWN_PROCESS",
|
|
"SERVICE_WIN32_SHARE_PROCESS",
|
|
],
|
|
),
|
|
),
|
|
(
|
|
'service_status', EnumProperty(
|
|
allowed=[
|
|
"SERVICE_CONTINUE_PENDING",
|
|
"SERVICE_PAUSE_PENDING",
|
|
"SERVICE_PAUSED",
|
|
"SERVICE_RUNNING",
|
|
"SERVICE_START_PENDING",
|
|
"SERVICE_STOP_PENDING",
|
|
"SERVICE_STOPPED",
|
|
],
|
|
),
|
|
),
|
|
])
|
|
|
|
|
|
class Process(_Observable):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716273>`__.
|
|
""" # noqa
|
|
|
|
_type = 'process'
|
|
_properties = OrderedDict([
|
|
('type', TypeProperty(_type, spec_version='2.0')),
|
|
('is_hidden', BooleanProperty()),
|
|
('pid', IntegerProperty()),
|
|
('name', StringProperty()),
|
|
# this is not the created timestamps of the object itself
|
|
('created', TimestampProperty()),
|
|
('cwd', StringProperty()),
|
|
('arguments', ListProperty(StringProperty)),
|
|
('command_line', StringProperty()),
|
|
('environment_variables', DictionaryProperty(spec_version="2.0")),
|
|
('opened_connection_refs', ListProperty(ObjectReferenceProperty(valid_types='network-traffic'))),
|
|
('creator_user_ref', ObjectReferenceProperty(valid_types='user-account')),
|
|
('binary_ref', ObjectReferenceProperty(valid_types='file')),
|
|
('parent_ref', ObjectReferenceProperty(valid_types='process')),
|
|
('child_refs', ListProperty(ObjectReferenceProperty('process'))),
|
|
('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
|
|
])
|
|
|
|
def _check_object_constraints(self):
|
|
# no need to check windows-service-ext, since it has a required property
|
|
super(Process, self)._check_object_constraints()
|
|
try:
|
|
self._check_at_least_one_property()
|
|
if 'windows-process-ext' in self.get('extensions', {}):
|
|
self.extensions['windows-process-ext']._check_at_least_one_property()
|
|
except AtLeastOnePropertyError as enclosing_exc:
|
|
if 'extensions' not in self:
|
|
raise enclosing_exc
|
|
else:
|
|
if 'windows-process-ext' in self.get('extensions', {}):
|
|
self.extensions['windows-process-ext']._check_at_least_one_property()
|
|
|
|
|
|
class Software(_Observable):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716282>`__.
|
|
""" # noqa
|
|
|
|
_type = 'software'
|
|
_properties = OrderedDict([
|
|
('type', TypeProperty(_type, spec_version='2.0')),
|
|
('name', StringProperty(required=True)),
|
|
('cpe', StringProperty()),
|
|
('languages', ListProperty(StringProperty)),
|
|
('vendor', StringProperty()),
|
|
('version', StringProperty()),
|
|
('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
|
|
])
|
|
|
|
|
|
class URL(_Observable):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716284>`__.
|
|
""" # noqa
|
|
|
|
_type = 'url'
|
|
_properties = OrderedDict([
|
|
('type', TypeProperty(_type, spec_version='2.0')),
|
|
('value', StringProperty(required=True)),
|
|
('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
|
|
])
|
|
|
|
|
|
class UNIXAccountExt(_Extension):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716289>`__.
|
|
""" # noqa
|
|
|
|
_type = 'unix-account-ext'
|
|
_properties = OrderedDict([
|
|
('gid', IntegerProperty()),
|
|
('groups', ListProperty(StringProperty)),
|
|
('home_dir', StringProperty()),
|
|
('shell', StringProperty()),
|
|
])
|
|
|
|
|
|
class UserAccount(_Observable):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716286>`__.
|
|
""" # noqa
|
|
|
|
_type = 'user-account'
|
|
_properties = OrderedDict([
|
|
('type', TypeProperty(_type, spec_version='2.0')),
|
|
('user_id', StringProperty(required=True)),
|
|
('account_login', StringProperty()),
|
|
('account_type', StringProperty()), # open vocab
|
|
('display_name', StringProperty()),
|
|
('is_service_account', BooleanProperty()),
|
|
('is_privileged', BooleanProperty()),
|
|
('can_escalate_privs', BooleanProperty()),
|
|
('is_disabled', BooleanProperty()),
|
|
('account_created', TimestampProperty()),
|
|
('account_expires', TimestampProperty()),
|
|
('password_last_changed', TimestampProperty()),
|
|
('account_first_login', TimestampProperty()),
|
|
('account_last_login', TimestampProperty()),
|
|
('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
|
|
])
|
|
|
|
|
|
class WindowsRegistryValueType(_STIXBase20):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716293>`__.
|
|
""" # noqa
|
|
|
|
_type = 'windows-registry-value-type'
|
|
_properties = OrderedDict([
|
|
('name', StringProperty(required=True)),
|
|
('data', StringProperty()),
|
|
(
|
|
'data_type', EnumProperty(
|
|
allowed=[
|
|
"REG_NONE",
|
|
"REG_SZ",
|
|
"REG_EXPAND_SZ",
|
|
"REG_BINARY",
|
|
"REG_DWORD",
|
|
"REG_DWORD_BIG_ENDIAN",
|
|
"REG_LINK",
|
|
"REG_MULTI_SZ",
|
|
"REG_RESOURCE_LIST",
|
|
"REG_FULL_RESOURCE_DESCRIPTION",
|
|
"REG_RESOURCE_REQUIREMENTS_LIST",
|
|
"REG_QWORD",
|
|
"REG_INVALID_TYPE",
|
|
],
|
|
),
|
|
),
|
|
])
|
|
|
|
|
|
class WindowsRegistryKey(_Observable):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716291>`__.
|
|
""" # noqa
|
|
|
|
_type = 'windows-registry-key'
|
|
_properties = OrderedDict([
|
|
('type', TypeProperty(_type, spec_version='2.0')),
|
|
('key', StringProperty(required=True)),
|
|
('values', ListProperty(EmbeddedObjectProperty(type=WindowsRegistryValueType))),
|
|
# this is not the modified timestamps of the object itself
|
|
('modified', TimestampProperty()),
|
|
('creator_user_ref', ObjectReferenceProperty(valid_types='user-account')),
|
|
('number_of_subkeys', IntegerProperty()),
|
|
('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
|
|
])
|
|
|
|
|
|
class X509V3ExtensionsType(_STIXBase20):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716298>`__.
|
|
""" # noqa
|
|
|
|
_type = 'x509-v3-extensions-type'
|
|
_properties = OrderedDict([
|
|
('basic_constraints', StringProperty()),
|
|
('name_constraints', StringProperty()),
|
|
('policy_constraints', StringProperty()),
|
|
('key_usage', StringProperty()),
|
|
('extended_key_usage', StringProperty()),
|
|
('subject_key_identifier', StringProperty()),
|
|
('authority_key_identifier', StringProperty()),
|
|
('subject_alternative_name', StringProperty()),
|
|
('issuer_alternative_name', StringProperty()),
|
|
('subject_directory_attributes', StringProperty()),
|
|
('crl_distribution_points', StringProperty()),
|
|
('inhibit_any_policy', StringProperty()),
|
|
('private_key_usage_period_not_before', TimestampProperty()),
|
|
('private_key_usage_period_not_after', TimestampProperty()),
|
|
('certificate_policies', StringProperty()),
|
|
('policy_mappings', StringProperty()),
|
|
])
|
|
|
|
|
|
class X509Certificate(_Observable):
|
|
"""For more detailed information on this object's properties, see
|
|
`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part4-cyber-observable-objects/stix-v2.0-cs01-part4-cyber-observable-objects.html#_Toc496716296>`__.
|
|
""" # noqa
|
|
|
|
_type = 'x509-certificate'
|
|
_properties = OrderedDict([
|
|
('type', TypeProperty(_type, spec_version='2.0')),
|
|
('is_self_signed', BooleanProperty()),
|
|
('hashes', HashesProperty(spec_version='2.0')),
|
|
('version', StringProperty()),
|
|
('serial_number', StringProperty()),
|
|
('signature_algorithm', StringProperty()),
|
|
('issuer', StringProperty()),
|
|
('validity_not_before', TimestampProperty()),
|
|
('validity_not_after', TimestampProperty()),
|
|
('subject', StringProperty()),
|
|
('subject_public_key_algorithm', StringProperty()),
|
|
('subject_public_key_modulus', StringProperty()),
|
|
('subject_public_key_exponent', IntegerProperty()),
|
|
('x509_v3_extensions', EmbeddedObjectProperty(type=X509V3ExtensionsType)),
|
|
('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=_type)),
|
|
])
|
|
|
|
|
|
def CustomObservable(type='x-custom-observable', properties=None):
|
|
"""Custom STIX Cyber Observable Object type decorator.
|
|
|
|
Example:
|
|
>>> from stix2.v20 import CustomObservable
|
|
>>> from stix2.properties import IntegerProperty, StringProperty
|
|
>>> @CustomObservable('x-custom-observable', [
|
|
... ('property1', StringProperty(required=True)),
|
|
... ('property2', IntegerProperty()),
|
|
... ])
|
|
... class MyNewObservableType():
|
|
... pass
|
|
|
|
"""
|
|
def wrapper(cls):
|
|
_properties = list(
|
|
itertools.chain.from_iterable([
|
|
[('type', TypeProperty(type, spec_version='2.0'))],
|
|
properties,
|
|
[('extensions', ExtensionsProperty(spec_version="2.0", enclosing_type=type))],
|
|
]),
|
|
)
|
|
return _custom_observable_builder(cls, type, _properties, '2.0', _Observable)
|
|
return wrapper
|
|
|
|
|
|
def CustomExtension(observable=None, type='x-custom-observable-ext', properties=None):
|
|
"""Decorator for custom extensions to STIX Cyber Observables.
|
|
"""
|
|
def wrapper(cls):
|
|
return _custom_extension_builder(cls, observable, type, properties, '2.0', _Extension)
|
|
return wrapper
|