FlagThis — Daily Cybersecurity Intelligence Briefing

The "Bring Your Own EDR" (BYOEDR) technique evolves the "Bring Your Own Vulnerable Driver" (BYOVD) vector by weaponizing legitimate, digitally signed components from trusted security vendors, specifically SentinelOne. Because EDR drivers possess high-level system privileges to monitor activity, they can be leveraged to manipulate kernel-mode process protection flags. By flipping PPL bits, attackers strip the "Protected" status from critical system processes such as lsass.exe. This bypasses Windows Protected Process Light (PPL) protections, facilitating unauthorized memory reads, credential dumping, and process injection, ultimately enabling full administrative takeover and lateral movement through stolen high-privileged credentials.