MITRE ATT&CK Technique
Command and Control T1071.002
Description

Adversaries may communicate using application layer protocols associated with transferring files to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server. Protocols such as SMB(Citation: US-CERT TA18-074A), FTP(Citation: ESET Machete July 2019), FTPS, and TFTP that transfer files may be very common in environments. Packets produced from these protocols may have many fields and headers in which data can be concealed. Data could also be concealed within the transferred files. An adversary may abuse these protocols to communicate with systems under their control within a victim network while also mimicking normal, expected traffic.

Supported Platforms
ESXi Linux macOS Network Devices Windows
Created

April 29, 2026

Last Updated

April 29, 2026

STIX Data
{'created': '2020-03-15T16:16:25.763Z',
 'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'description': 'Adversaries may communicate using application layer protocols '
                'associated with transferring files to avoid detection/network '
                'filtering by blending in with existing traffic. Commands to '
                'the remote system, and often the results of those commands, '
                'will be embedded within the protocol traffic between the '
                'client and server. \n'
                '\n'
                'Protocols such as SMB(Citation: US-CERT TA18-074A), '
                'FTP(Citation: ESET Machete July 2019), FTPS, and TFTP that '
                'transfer files may be very common in environments.  Packets '
                'produced from these protocols may have many fields and '
                'headers in which data can be concealed. Data could also be '
                'concealed within the transferred files. An adversary may '
                'abuse these protocols to communicate with systems under their '
                'control within a victim network while also mimicking normal, '
                'expected traffic. ',
 'external_references': [{'external_id': 'T1071.002',
                          'source_name': 'mitre-attack',
                          'url': 'https://attack.mitre.org/techniques/T1071/002'},
                         {'description': 'ESET. (2019, July). MACHETE JUST GOT '
                                         'SHARPER Venezuelan government '
                                         'institutions under attack. Retrieved '
                                         'September 13, 2019.',
                          'source_name': 'ESET Machete July 2019',
                          'url': 'https://www.welivesecurity.com/wp-content/uploads/2019/08/ESET_Machete.pdf'},
                         {'description': 'Gardiner, J.,  Cova, M., Nagaraja, '
                                         'S. (2014, February). Command & '
                                         'Control Understanding, Denying and '
                                         'Detecting. Retrieved April 20, 2016.',
                          'source_name': 'University of Birmingham C2',
                          'url': 'https://arxiv.org/ftp/arxiv/papers/1408/1408.1136.pdf'},
                         {'description': 'US-CERT. (2018, March 16). Alert '
                                         '(TA18-074A): Russian Government '
                                         'Cyber Activity Targeting Energy and '
                                         'Other Critical Infrastructure '
                                         'Sectors. Retrieved June 6, 2018.',
                          'source_name': 'US-CERT TA18-074A',
                          'url': 'https://www.us-cert.gov/ncas/alerts/TA18-074A'}],
 'id': 'attack-pattern--9a60a291-8960-4387-8a4a-2ab5c18bb50b',
 'kill_chain_phases': [{'kill_chain_name': 'mitre-attack',
                        'phase_name': 'command-and-control'}],
 'modified': '2025-10-24T17:49:08.302Z',
 'name': 'File Transfer Protocols',
 '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_contributors': ['Don Le, Stifel Financial'],
 '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': ['ESXi', 'Linux', 'macOS', 'Network Devices', 'Windows'],
 'x_mitre_version': '1.4'}
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