Threat Actor Profile
High APT
Description

Gelsemium is a cyberespionage group that has been active since at least 2014, targeting governmental institutions, electronics manufacturers, universities, and religious organizations in East Asia and the Middle East.(Citation: ESET Gelsemium June 2021)

Confidence Score
90%
Known Aliases
Gelsemium
Tags
mitre-attack stix-2.1 intrusion-set
First Seen

Unknown

Last Updated

Unknown

Active Status
Active
Created

April 29, 2026

Indicators of Compromise

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IOC KQL for Sentinel
STIX Data
{'aliases': ['Gelsemium'],
 'created': '2021-11-30T16:25:49.366Z',
 'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'description': '[Gelsemium](https://attack.mitre.org/groups/G0141) is a '
                'cyberespionage group that has been active since at least '
                '2014, targeting governmental institutions, electronics '
                'manufacturers, universities, and religious organizations in '
                'East Asia and the Middle East.(Citation: ESET Gelsemium June '
                '2021)',
 'external_references': [{'external_id': 'G0141',
                          'source_name': 'mitre-attack',
                          'url': 'https://attack.mitre.org/groups/G0141'},
                         {'description': 'Dupuy, T. and Faou, M. (2021, June). '
                                         'Gelsemium. Retrieved November 30, '
                                         '2021.',
                          'source_name': 'ESET Gelsemium June 2021',
                          'url': 'https://www.welivesecurity.com/wp-content/uploads/2021/06/eset_gelsemium.pdf'}],
 'id': 'intrusion-set--99910207-1741-4da1-9b5d-537410186b51',
 'modified': '2025-04-18T17:59:27.801Z',
 'name': 'Gelsemium',
 '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_deprecated': True,
 'x_mitre_domains': ['enterprise-attack'],
 'x_mitre_modified_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
 'x_mitre_version': '1.0'}
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