A malware researcher published proof-of-concept code that, when put on a USB stick, can trigger the dreaded Blue Screen of Death on various versions of Windows even if the system is locked. The PoC is not malware but a malformed NTFS image. The code works on Windows 7 Enterprise 6.1.1, Build 7601 x64, Windows 10 Pro 10.0.15063, Build 15063 x64 and Windows 10 Enterprise Evaluation Insider Preview 10299.”]