Gentlemen ransomware disables Defender, deletes backups and spreads
Acronis describes a Go-based RaaS from 2025 that also targets Linux, NAS and BSD, with more than 800 claimed victims.
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Product
BootRepair.sys
- Mentions · 7d2
- Mentions · 30d2
- All mentions2
- First seenOct 21, 2026
- Last mentioned4d ago
Timeline
2 articles · newest firstGentlemen ransomware kills security tools with Lenovo and Safetica drivers
Acronis droppers load BootRepair.sys 2.5.30.11281 and Safetica ProcessMonitorDriver 11.26.18, then terminate matching processes from kernel mode.
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Related CVEs
by mentions- CVE-2025-70795<1%5.5STProcessMonitor 11.11.4.0, part of the Safetica Application suite, allows an admin-privileged user to send crafted IOCTL requests to terminate processes that…
Appears with
- Acronisorganization · 2
- Lenovovendor · 2
- Safeticavendor · 2
- ProcessMonitorDriverproduct · 2
- Gentlementhreat actor · 1
- Gentlemenmalware · 1
- The Gentlementhreat actor · 1
- Gentlemen ransomwaremalware · 1
- Microsoftvendor · 1
- Microsoft Defenderproduct · 1
- Windowsproduct · 1
- Phantom Mantisthreat actor · 1
- ArmCorpthreat actor · 1
Entities are extracted by the model from each article. First seen , last mentioned . Watching keeps it in this browser only (no account); the watchlist page and dashboard alerts use it.