MythicRatatoskr: An Yggdrasil-enabled backdoor deployed in a UAC-0099-Sandworm collaboration
22 October 2026 at 08:45
ESET researchers uncover MythicRatatoskr β a previously unknown Go-based backdoor hiding its C&C server inside the Yggdrasil mesh network β that paved the way for a destructive attack against a Ukrainian grain firm