cti-python-stix2/stix2/sdo.py

360 lines
15 KiB
Python

"""STIX 2.0 Domain Objects"""
from collections import OrderedDict
import stix2
from .base import _STIXBase
from .common import ExternalReference, GranularMarking, KillChainPhase
from .observables import ObservableProperty
from .properties import (BooleanProperty, IDProperty, IntegerProperty,
ListProperty, PatternProperty, ReferenceProperty,
StringProperty, TimestampProperty, TypeProperty)
from .utils import NOW
class AttackPattern(_STIXBase):
_type = 'attack-pattern'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('kill_chain_phases', ListProperty(KillChainPhase)),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class Campaign(_STIXBase):
_type = 'campaign'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('aliases', ListProperty(StringProperty)),
('first_seen', TimestampProperty()),
('last_seen', TimestampProperty()),
('objective', StringProperty()),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class CourseOfAction(_STIXBase):
_type = 'course-of-action'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class Identity(_STIXBase):
_type = 'identity'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('identity_class', StringProperty(required=True)),
('sectors', ListProperty(StringProperty)),
('contact_information', StringProperty()),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class Indicator(_STIXBase):
_type = 'indicator'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('labels', ListProperty(StringProperty, required=True)),
('name', StringProperty()),
('description', StringProperty()),
('pattern', PatternProperty(required=True)),
('valid_from', TimestampProperty(default=lambda: NOW)),
('valid_until', TimestampProperty()),
('kill_chain_phases', ListProperty(KillChainPhase)),
('revoked', BooleanProperty()),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class IntrusionSet(_STIXBase):
_type = 'intrusion-set'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('aliases', ListProperty(StringProperty)),
('first_seen', TimestampProperty()),
('last_seen ', TimestampProperty()),
('goals', ListProperty(StringProperty)),
('resource_level', StringProperty()),
('primary_motivation', StringProperty()),
('secondary_motivations', ListProperty(StringProperty)),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class Malware(_STIXBase):
_type = 'malware'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('kill_chain_phases', ListProperty(KillChainPhase)),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty, required=True)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class ObservedData(_STIXBase):
_type = 'observed-data'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('first_observed', TimestampProperty(required=True)),
('last_observed', TimestampProperty(required=True)),
('number_observed', IntegerProperty(required=True)),
('objects', ObservableProperty()),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class Report(_STIXBase):
_type = 'report'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('published', TimestampProperty()),
('object_refs', ListProperty(ReferenceProperty)),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty, required=True)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class ThreatActor(_STIXBase):
_type = 'threat-actor'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('aliases', ListProperty(StringProperty)),
('roles', ListProperty(StringProperty)),
('goals', ListProperty(StringProperty)),
('sophistication', StringProperty()),
('resource_level', StringProperty()),
('primary_motivation', StringProperty()),
('secondary_motivations', ListProperty(StringProperty)),
('personal_motivations', ListProperty(StringProperty)),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty, required=True)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class Tool(_STIXBase):
_type = 'tool'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('kill_chain_phases', ListProperty(KillChainPhase)),
('tool_version', StringProperty()),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty, required=True)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
class Vulnerability(_STIXBase):
_type = 'vulnerability'
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('name', StringProperty(required=True)),
('description', StringProperty()),
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
def CustomObject(type='x-custom-type', properties=None):
"""Custom STIX Object type decorator.
Example:
>>> @CustomObject('x-type-name', [
... ('property1', StringProperty(required=True)),
... ('property2', IntegerProperty()),
... ])
... class MyNewObjectType():
... pass
Supply an ``__init__()`` function to add any special validations to the custom
type. Don't call ``super().__init__()`` though - doing so will cause an error.
Example:
>>> @CustomObject('x-type-name', [
... ('property1', StringProperty(required=True)),
... ('property2', IntegerProperty()),
... ])
... class MyNewObjectType():
... def __init__(self, property2=None, **kwargs):
... if property2 and property2 < 10:
... raise ValueError("'property2' is too small.")
"""
def custom_builder(cls):
class _Custom(cls, _STIXBase):
_type = type
_properties = OrderedDict()
_properties.update([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('created_by_ref', ReferenceProperty(type="identity")),
('created', TimestampProperty(default=lambda: NOW, precision='millisecond')),
('modified', TimestampProperty(default=lambda: NOW, precision='millisecond')),
])
if not properties or not isinstance(properties, list):
raise ValueError("Must supply a list, containing tuples. For example, [('property1', IntegerProperty())]")
_properties.update([x for x in properties if not x[0].startswith("x_")])
# This is to follow the general properties structure.
_properties.update([
('revoked', BooleanProperty()),
('labels', ListProperty(StringProperty)),
('external_references', ListProperty(ExternalReference)),
('object_marking_refs', ListProperty(ReferenceProperty(type="marking-definition"))),
('granular_markings', ListProperty(GranularMarking)),
])
# Put all custom properties at the bottom, sorted alphabetically.
_properties.update(sorted([x for x in properties if x[0].startswith("x_")], key=lambda x: x[0]))
def __init__(self, **kwargs):
_STIXBase.__init__(self, **kwargs)
try:
cls.__init__(self, **kwargs)
except (AttributeError, TypeError) as e:
# Don't accidentally catch errors raised in a custom __init__()
if ("has no attribute '__init__'" in str(e) or
str(e) == "object.__init__() takes no parameters"):
return
raise e
stix2._register_type(_Custom)
return _Custom
return custom_builder