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Yggdrasil

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critical threat

UAC-0099 and Sandworm collaboration: MythicRatatoskr backdoor and destructive wiping

UAC-0099 gained initial access to a Ukrainian organization via spearphishing to deploy the MythicRatatoskr backdoor, which uses the Yggdrasil mesh network for C2, before handing off access to Sandworm for destructive data-wiping.

Sandworm +4 backdoor wiper uac-0099 yggdrasil
5t 2i