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ESET documents an intrusion at a Ukrainian grain logistics company in which UAC-0099 gained initial access on July 16th, 2025 via a spearphishing email with a malicious attachment, then handed access off to Sandworm. Sandworm carried out a data-wiping attack on September 17th, 2025. A day after initial access, the attackers deployed Mythi…
Symantec reports that the Russia-linked APT28 (aka Swallowtail, Fancy Bear, Forest Blizzard, BlueDelta), which the U.S. government links to the GRU, targeted organizations in two NATO member states. Victims were a naval shipbuilder, a manufacturer of military aircraft engines and a law enforcement agency (thehackernews.com, cyberscoop.com…
ESET documented the evolution of MATCHBOIL, a custom C downloader used by the Russia-aligned cyberespionage group UAC-0099. Samples span April 2024 to April 2026, although CERT-UA first documented the malware in August 2025. Each iteration became more sophisticated, with new obfuscation, sandbox checks and persistence methods. All victims…
