216.73.216.226

Threat Group-3390

· Published 16/12/2025 19:39 · Modified 27/03/2026 01:14 · Source: The MITRE Corporation

Essential information

Confidence
100/100
Published
16/12/2025 19:39
Modified
27/03/2026 01:14
Updated at
27/03/2026 01:14
Revoked
No
Author / Source
The MITRE Corporation
Resource level
—
Primary motivation
—
Related entities
1 reports, 84 attack patterns (mitre), 21 malware, 12 sectors, 5 countries, 39 indicators, 5 vulnerabilities (cve), 12 tool

Aliases

Earth Smilodon TG-3390 Emissary Panda BRONZE UNION Iron Tiger APT27 Linen Typhoon LuckyMouse

Description

[Threat Group-3390](https://attack.mitre.org/groups/G0027) is a Chinese threat group that has extensively used strategic Web compromises to target victims.(Citation: Dell TG-3390) The group has been active since at least 2010 and has targeted organizations in the aerospace, government, defense, technology, energy, manufacturing and gambling/betting sectors.(Citation: SecureWorks BRONZE UNION June 2017)(Citation: Securelist LuckyMouse June 2018)(Citation: Trend Micro DRBControl February 2020)

Marking (TLP)

TLP:CLEAR Copyright 2015-2025, The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation.

External references

Related entities

Attack patterns, malware, vulnerabilities, indicators and other entities linked to this intrusion set.