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UPDATE: "The Gentlemen" ransomware claims 478 victims and adds worm propagation — Switzerland the second-most-targeted European country
From CTI Daily Brief — 2026-06-27 · published 2026-06-27
UPDATE (originally covered in the 2026-W25 weekly): The fresh in-window signal on The Gentlemen ransomware operation is geographic: Swiss tech press, citing Check Point Research, reports Switzerland as the second-most-targeted European country (after Germany) for the group (inside-it.ch, 2026-06-26).
The group's established profile — detailed earlier this month — is 478 claimed victims and a
--spreadcommand-line argument enabling self-propagation across Windows networks via SMB share enumeration and credential reuse (The Hacker News, 2026-06-11). Combined with the previously reported GentleKiller BYOVD EDR-killer, the Swiss-targeting signal means a foothold in one Swiss organisation can spread laterally without further operator action; defenders should enforce SMB signing, restrict admin shares, apply the Microsoft vulnerable-driver blocklist, and alert on a--spreadargument in ransomware process trees.