{'created': '2025-09-25T14:45:54.760Z',
 'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'description': 'Adversaries may intentionally exclude certain files, folders, '
                'directories, file types, or system components from encryption '
                'or tampering during a ransomware or malicious payload '
                'execution. Some file extensions that adversaries may avoid '
                'encrypting include `.dll`, `.exe`, and `.lnk`.(Citation: Palo '
                'Alto Unit 42 Medusa Group Medusa Ransomware January 2024)  \n'
                '\n'
                'Adversaries may perform this behavior to avoid alerting '
                'users, to evade detection by security tools and analysts, or, '
                'in the case of ransomware, to ensure that the system remains '
                'operational enough to deliver the ransom notice. \n'
                '\n'
                'Exclusions may target files and components whose corruption '
                'would cause instability, break core services, or immediately '
                'expose the attack. By carefully avoiding these areas, '
                'adversaries maintain system responsiveness while minimizing '
                'indicators that could trigger alarms or otherwise inhibit '
                'achieving their goals. ',
 'external_references': [{'external_id': 'T1679',
                          'source_name': 'mitre-attack',
                          'url': 'https://attack.mitre.org/techniques/T1679'},
                         {'description': 'Anthony Galiette, Doel Santos. '
                                         '(2024, January 11). Medusa '
                                         'Ransomware Turning Your Files into '
                                         'Stone. Retrieved October 15, 2025.',
                          'source_name': 'Palo Alto Unit 42 Medusa Group '
                                         'Medusa Ransomware January 2024',
                          'url': 'https://unit42.paloaltonetworks.com/medusa-ransomware-escalation-new-leak-site/'}],
 'id': 'attack-pattern--9b00925a-7c4b-4e53-bfc8-9a6a806fde03',
 'kill_chain_phases': [{'kill_chain_name': 'mitre-attack',
                        'phase_name': 'defense-evasion'}],
 'modified': '2025-10-22T03:50:30.406Z',
 'name': 'Selective Exclusion',
 'object_marking_refs': ['marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168'],
 'revoked': False,
 'spec_version': '2.1',
 'type': 'attack-pattern',
 'x_mitre_attack_spec_version': '3.3.0',
 'x_mitre_deprecated': False,
 'x_mitre_detection': '',
 'x_mitre_domains': ['enterprise-attack'],
 'x_mitre_is_subtechnique': False,
 'x_mitre_modified_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'x_mitre_platforms': ['Windows'],
 'x_mitre_version': '1.0'}