{'created': '2020-10-20T00:05:48.790Z',
 'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'description': 'Adversaries may abuse the ROM Monitor (ROMMON) by loading an '
                'unauthorized firmware with adversary code to provide '
                'persistent access and manipulate device behavior that is '
                'difficult to detect. (Citation: Cisco Synful Knock '
                'Evolution)(Citation: Cisco Blog Legacy Device Attacks)\n'
                '\n'
                '\n'
                'ROMMON is a Cisco network device firmware that functions as a '
                'boot loader, boot image, or boot helper to initialize '
                'hardware and software when the platform is powered on or '
                'reset. Similar to [TFTP '
                'Boot](https://attack.mitre.org/techniques/T1542/005), an '
                'adversary may upgrade the ROMMON image locally or remotely '
                '(for example, through TFTP) with adversary code and restart '
                'the device in order to overwrite the existing ROMMON image. '
                'This provides adversaries with the means to update the ROMMON '
                'to gain persistence on a system in a way that may be '
                'difficult to detect.',
 'external_references': [{'external_id': 'T1542.004',
                          'source_name': 'mitre-attack',
                          'url': 'https://attack.mitre.org/techniques/T1542/004'},
                         {'description': 'Graham Holmes. (2015, October 8). '
                                         'Evolution of attacks on Cisco IOS '
                                         'devices. Retrieved October 19, 2020.',
                          'source_name': 'Cisco Synful Knock Evolution',
                          'url': 'https://blogs.cisco.com/security/evolution-of-attacks-on-cisco-ios-devices'},
                         {'description': 'Omar Santos. (2020, October 19). '
                                         'Attackers Continue to Target Legacy '
                                         'Devices. Retrieved October 20, 2020.',
                          'source_name': 'Cisco Blog Legacy Device Attacks',
                          'url': 'https://community.cisco.com/t5/security-blogs/attackers-continue-to-target-legacy-devices/ba-p/4169954'}],
 'id': 'attack-pattern--a6557c75-798f-42e4-be70-ab4502e0a3bc',
 'kill_chain_phases': [{'kill_chain_name': 'mitre-attack',
                        'phase_name': 'defense-evasion'},
                       {'kill_chain_name': 'mitre-attack',
                        'phase_name': 'persistence'}],
 'modified': '2025-10-24T17:49:11.524Z',
 'name': 'ROMMONkit',
 'object_marking_refs': ['marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168'],
 'spec_version': '2.1',
 'type': 'attack-pattern',
 'x_mitre_attack_spec_version': '3.2.0',
 'x_mitre_deprecated': False,
 'x_mitre_detection': '',
 'x_mitre_domains': ['enterprise-attack'],
 'x_mitre_is_subtechnique': True,
 'x_mitre_modified_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'x_mitre_platforms': ['Network Devices'],
 'x_mitre_version': '1.1'}