DRILLAPP Backdoor Targets Ukraine, Abuses Microsoft Edge Debugging for Stealth Espionage

Ukrainian entities have emerged as the target of a new campaign likely orchestrated by threat actors linked to Russia, according to a report from S2 Grupo's LAB52 threat intelligence team. The campaign, observed in February 2026, has been assessed to share overlaps with a prior campaign mounted by Laundry Bear (aka UAC-0190 or Void Blizzard) aimed at Ukrainian defense forces with a malware