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New Tomiris Backdoor Found Linked to Hackers Behind SolarWinds Cyberattack

September 30, 2021

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Cybersecurity researchers on Wednesday disclosed a previously undocumented backdoor likely designed and developed by the Nobelium advanced persistent threat (APT) behind last year’s SolarWinds supply chain attack, joining the threat actor’s ever-expanding arsenal of hacking tools.

Moscow-headquartered firm Kaspersky codenamed the malware “Tomiris,” calling out its similarities to another second-stage malware used during the campaign, SUNSHUTTLE (aka GoldMax), targeting the IT management software provider’s Orion platform. Nobelium is also known by the monikers UNC2452, SolarStorm, StellarParticle, Dark Halo, and Iron Ritual.

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