New BYOVD Technique Enhances Driver Exploitation Methods
/ 1 min read
🔗 New BYOVD Technique Enhances Exploitation of Vulnerable Drivers. A novel method combining the “Bring Your Own Vulnerable Driver” (BYOVD) technique with Windows symbolic links allows attackers to exploit a broader range of drivers with file-writing capabilities, potentially bypassing security measures like Windows Defender. This approach enables threat actors to disable Endpoint Detection and Response (EDR) services by overwriting critical executable files during system boot. The article outlines a step-by-step process for executing this attack, emphasizing the growing challenge for security measures as Microsoft updates its blocklist of vulnerable drivers. As legitimate file-writing functions of drivers become targets, the effectiveness of traditional defenses may diminish, necessitating proactive measures from driver developers to mitigate exploitation risks.
