Threat Actor Profile
Description
Operation Wocao described activities carried out by a China-based cyber espionage adversary. Operation Wocao targeted entities within the government, managed service providers, energy, health care, and technology sectors across several countries, including China, France, Germany, the United Kingdom, and the United States. Operation Wocao used similar TTPs and tools to APT20, suggesting a possible overlap.(Citation: FoxIT Wocao December 2019)
Confidence Score
Known Aliases
Tags
First Seen
Unknown
Last Updated
Unknown
Active Status
ActiveCreated
April 29, 2026
Indicators of Compromise
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IOC KQL for Sentinel
STIX Data
{'aliases': ['Operation Wocao'],
'created': '2020-11-17T20:33:44.273Z',
'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
'description': '[Operation Wocao](https://attack.mitre.org/groups/G0116) '
'described activities carried out by a China-based cyber '
'espionage adversary. [Operation '
'Wocao](https://attack.mitre.org/groups/G0116) targeted '
'entities within the government, managed service providers, '
'energy, health care, and technology sectors across several '
'countries, including China, France, Germany, the United '
'Kingdom, and the United States. [Operation '
'Wocao](https://attack.mitre.org/groups/G0116) used similar '
'TTPs and tools to APT20, suggesting a possible '
'overlap.(Citation: FoxIT Wocao December 2019)',
'external_references': [{'external_id': 'G0116',
'source_name': 'mitre-attack',
'url': 'https://attack.mitre.org/groups/G0116'},
{'description': '(Citation: FoxIT Wocao December '
'2019)',
'source_name': 'Operation Wocao'},
{'description': 'Dantzig, M. v., Schamper, E. (2019, '
'December 19). Operation Wocao: '
'Shining a light on one of China’s '
'hidden hacking groups. Retrieved '
'October 8, 2020.',
'source_name': 'FoxIT Wocao December 2019',
'url': 'https://www.fox-it.com/media/kadlze5c/201912_report_operation_wocao.pdf'}],
'id': 'intrusion-set--28f04ed3-8e91-4805-b1f6-869020517871',
'modified': '2025-04-18T17:59:27.086Z',
'name': 'Operation Wocao',
'object_marking_refs': ['marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168'],
'revoked': False,
'spec_version': '2.1',
'type': 'intrusion-set',
'x_mitre_attack_spec_version': '3.2.0',
'x_mitre_contributors': ['Erik Schamper, @Schamperr, Fox-IT',
'Maarten van Dantzig, @MaartenVDantzig, Fox-IT'],
'x_mitre_deprecated': True,
'x_mitre_domains': ['enterprise-attack'],
'x_mitre_modified_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
'x_mitre_version': '1.0'}