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attack_type:byovd × limpar

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sentinelone.com · medium

BYOVD trust gap: Windows kernel still loads revoked-certificate drivers; ~36% of LOLDrivers samples absent from default blocklist

SentinelOne analysis argues that bring your own vulnerable driver (BYOVD) succeeds because of a signing-trust gap rather than an incomplete driver list. The Windows kernel loads drivers signed with expired or revoked certificates, and a 2026 intrusion reported by Help Net Security used a decade-old forensic driver whose certificate had lo…

sentinelone.com · medium

BYOVD and EDR-Killer Hunting: Four Distinct Techniques Detection Teams Should Cover Separately Before Ransomware Deployment

SentinelOne argues that "EDR killer" covers four different techniques, and a single driver-load rule leaves blind spots. The four are bring-your-own-vulnerable-driver (BYOVD), bring-your-own-installer, admin-to-kernel, and driverless suspension. The article gives hunt logic for each and recommends rolling them out in order of signal quali…

gbhackers.com · high

Gentlemen ransomware uses vulnerable Lenovo and Safetica drivers (BYOVD) to kill security software before encryption

Acronis Threat Research Unit found that the Gentlemen ransomware operation is using the BYOVD (bring your own vulnerable driver) technique with legitimate Lenovo and Safetica kernel drivers to terminate endpoint security software before encrypting files. Two custom dropper samples were recovered from a recent incident. They install the dr…

sentinelone.com · high

BYOVD EDR-killer tooling industrialized into a shared supply chain used by rival ransomware crews and RaaS affiliates

This SentinelOne analysis argues that EDR killing, mostly through bring your own vulnerable driver (BYOVD), has grown from one-off tooling into a maintained, shared and sold capability. Ransomware actors disabled security tools in about 48% of 2024 intrusions, and BYOVD is the fastest-growing method within that figure. The article traces …