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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UNC2452 — Threat Actor Profile — Ninja Signal | Ninja Signal