BYOVD (Vulnerable Driver) × CrowdStrike Falcon

SPECTRE Backdoor blinds CrowdStrike and SentinelOne at the kernel level without terminating the EDR processes

SPECTRE Backdoor uses a vulnerable driver to gain kernel-level access and then manipulates kernel structures (such as callback arrays or ETW providers) to blind the EDR without terminating its processes. This defeats the EDR's ability to detect malicious activity while the agent appears to be functioning normally.

Monitor for loading of known vulnerable drivers (BYOVD) using driver block rules and integrity checks. Deploy kernel-level telemetry (e.g., ETW, driver events) to detect tampering with EDR callbacks or structures. Enforce least privilege to limit driver installation.