Threat Actor
UNC2452
Also known as: UNC2452, NOBELIUM, StellarParticle, Dark Halo
[UNC2452](https://attack.mitre.org/groups/G0118) is a suspected Russian state-sponsored threat group responsible for the 2020 SolarWinds software supply chain intrusion.(Citation: FireEye SUNBURST Backdoor December 2020) Victims of this campaign include government, consulting, technology, telecom, and other organizations in North America, Europe, Asia, and the Middle East.(Citation: FireEye SUNBURST Backdoor December 2020) The group also compromised at least one think tank by late 2019.(Citation: Volexity SolarWinds)
Properties
- stix_id
- intrusion-set--dc5e2999-ca1a-47d4-8d12-a6984b138a1b
- signal_observed_at
- 2026-09-11T17:55:00+00:00
- type
- intrusion-set
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