Kitos
51c927394d
- Replace default=datetime.utcnow with server_default=func.now() across all 16 models (17 columns) for consistent, timezone-aware timestamps from PostgreSQL - Upgrade DateTime columns to DateTime(timezone=True) for timestamptz storage - Configure SQLAlchemy engine pool: pool_size=20, max_overflow=10, pool_recycle=3600, pool_pre_ping=True - Remove unused datetime imports from model files
91 lines
3.2 KiB
Python
91 lines
3.2 KiB
Python
"""ThreatActor and ThreatActorTechnique models.
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Stores profiles of APT groups and their associated MITRE ATT&CK
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techniques, imported from MITRE CTI (STIX 2.0).
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"""
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import uuid
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from sqlalchemy import (
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Column, String, Text, Boolean, DateTime,
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ForeignKey, Index, UniqueConstraint, func,
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)
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from sqlalchemy.dialects.postgresql import UUID, JSONB
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from sqlalchemy.orm import relationship
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from app.database import Base
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class ThreatActor(Base):
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"""
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Threat actor / APT group profile.
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Imported from MITRE CTI ``intrusion-set`` STIX objects.
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"""
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__tablename__ = "threat_actors"
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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mitre_id = Column(String, unique=True, nullable=True) # e.g. "G0016" (APT29)
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name = Column(String, nullable=False)
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aliases = Column(JSONB, nullable=True, default=[]) # ["Cozy Bear", "The Dukes", ...]
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description = Column(Text, nullable=True)
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country = Column(String, nullable=True)
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target_sectors = Column(JSONB, nullable=True, default=[]) # ["government", "defense", ...]
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target_regions = Column(JSONB, nullable=True, default=[]) # ["north-america", "europe", ...]
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motivation = Column(String, nullable=True) # espionage / financial / destruction / ...
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sophistication = Column(String, nullable=True) # low / medium / high / advanced
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first_seen = Column(String, nullable=True)
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last_seen = Column(String, nullable=True)
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references = Column(JSONB, nullable=True, default=[]) # [{"url": "...", "description": "..."}]
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mitre_url = Column(String, nullable=True)
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is_active = Column(Boolean, default=True)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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# Relationships
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techniques = relationship(
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"ThreatActorTechnique",
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back_populates="threat_actor",
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cascade="all, delete-orphan",
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)
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__table_args__ = (
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Index('ix_threat_actors_country', 'country'),
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Index('ix_threat_actors_motivation', 'motivation'),
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)
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class ThreatActorTechnique(Base):
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"""
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Association between a threat actor and a MITRE ATT&CK technique.
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Stores additional context about how the actor uses the technique
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(from the STIX ``relationship`` ``uses`` objects).
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"""
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__tablename__ = "threat_actor_techniques"
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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threat_actor_id = Column(
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UUID(as_uuid=True),
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ForeignKey("threat_actors.id", ondelete="CASCADE"),
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nullable=False,
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)
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technique_id = Column(
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UUID(as_uuid=True),
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ForeignKey("techniques.id", ondelete="CASCADE"),
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nullable=False,
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)
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usage_description = Column(Text, nullable=True)
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first_seen_using = Column(String, nullable=True)
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# Relationships
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threat_actor = relationship("ThreatActor", back_populates="techniques")
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technique = relationship("Technique")
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__table_args__ = (
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Index('ix_threat_actor_techniques_actor', 'threat_actor_id'),
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Index('ix_threat_actor_techniques_technique', 'technique_id'),
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UniqueConstraint(
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'threat_actor_id', 'technique_id',
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name='uq_actor_technique',
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),
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)
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