Russia-linked APT uses DRILLAPP backdoor to spy on Ukrainian targets
Russia-linked threat actors target Ukrainian entities with DRILLAPP backdoor and use Edge debugging for stealth. A new DRILLAPP backdoor campaign targets Ukrainian organizations, abusing Microsoft Edge debugging to evade detection. Observed in February 2026, it shows links to previous Russian-aligned operations by Laundry Bear APT group (aka UAC-0190, Void Blizzard) using the PLUGGYAPE malware family […]
A new DRILLAPP backdoor campaign targets Ukrainian organizations, abusing Microsoft Edge debugging to evade detection. Observed in February 2026, it shows links to previous Russian-aligned operations by Laundry Bear APT group (aka UAC-0190, Void Blizzard) using the PLUGGYAPE malware family against Ukrainian defense forces, indicating ongoing espionage efforts.
“Certain tactics shared with a Laundry Bear campaign reported by CERT-UA in January have been observed, resulting in the activity being attributed to this group with low confidence. These include the use of charity‑themed lures or the hosting of operational artifacts on public text‑sharing services.” reads the report published by LAB52, the intelligence team at S2 Group.
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