CNChinaconfidence: 50

Storm-0558Storm-0558

Also known as: Storm-0558

Origin
CN
Known aliases
1
Target sectors
1
Attribution
State-sponsored

Profile

Storm-0558 is a China-based threat actor with espionage objectives. While there are some minimal overlaps with other Chinese groups such as Violet Typhoon (ZIRCONIUM, APT31), Microsoft maintain high confidence that Storm-0558 operates as its own distinct group

Aliases· 1

Storm-0558

Target sectors· 1

Government

Known victims· 2

  • United States
  • Germany

References

  1. https://www.microsoft.com/en-us/security/blog/2023/07/14/analysis-of-storm-0558-techniques-for-unauthorized-email-access/
  2. https://www.wiz.io/blog/storm-0558-compromised-microsoft-key-enables-authentication-of-countless-micr
  3. https://msrc.microsoft.com/blog/2023/09/results-of-major-technical-investigations-for-storm-0558-key-acquisition/
  4. https://www.bsi.bund.de/DE/Themen/Unternehmen-und-Organisationen/Cyber-Sicherheitslage/Analysen-und-Prognosen/Threat-Intelligence/Aktive_APT-Gruppen/aktive-apt-gruppen_node.html
  5. https://blogs.microsoft.com/on-the-issues/2023/07/11/mitigation-china-based-threat-actor/
  6. https://msrc.microsoft.com/blog/2023/07/microsoft-mitigates-china-based-threat-actor-storm-0558-targeting-of-customer-email/
  7. https://www.youtube.com/watch?v=khywfhJv4H8
  8. https://www.cisa.gov/sites/default/files/2024-04/CSRB_Review_of_the_Summer_2023_MEO_Intrusion_Final_508c.pdf

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

Actor
Storm-0062
Actor
Storm-0940
Actor
Volt Typhoon
Actor
Storm Cloud
Actor
Storm-0530
Actor
Storm-0539
Sourced from MISP-Galaxy Threat Actor cluster. Curated by Adam Lundqvist, Founder at SQUR.