Relying on out-of-the-box security is a gamble. From essential features to independent lab test scores, here's how to choose ...

MATCHBOIL malware, linked to UAC-0099, hides C2 servers behind Cloudflare to deliver backdoors targeting Ukrainian ...

ESET researchers have traced the evolution of MATCHBOIL, a custom C# downloader used by the Russia-aligned UAC-0099 cyberespionage group.

IntroductionIn the world of cyberattacks, behind the flashy 'primary weapons' are the unassuming 'subcontractor tools' that ...

Cyber-espionage actor UAC-0099 has been steadily refining its flagship dropper in campaigns targeting Ukrainian organizations ...

TrendAI links UAC-0099 to ASHVEIN, a .NET stealer and RAT used in attacks targeting Ukrainian government personnel.

Platinum Partner will present its MSP Program, six-minute-response MDR service and integrations at Barcelona-area event on 21–22 October ESET will participate as a Platinum Partner at MSP GLOBAL 2026, ...

The earliest MATCHBOIL versions analyzed by ESET Research date from April 2024 and the latest from April 2026. According to ESET, each new iteration of the downloader has become more sophisticated ...

MATCHBOIL was first documented by Ukraine's Computer Emergency Response Team (CERT-UA) in August 2025, but ESET found earlier samples suggesting development may have begun as early as April 2024. It ...

Scammers are going after YouTube creators' Google accounts by posing as a brand looking for sponsorship partners.

ESET Research investigates MATCHBOIL, a C# downloader used by the Russia-aligned group UAC-0099 to download, install, and persist additional payload.Victims that ESET has seen in its telemetry were in ...

MATCHBOIL malware from Russia-aligned UAC-0099 keeps getting harder to analyze and has reached a Ukrainian energy company, ...