OLD BUT GOLD, DUMPING LSASS WITH WINDOWS ERROR REPORTING ON MODERN WINDOWS 11

Summary from the TLDR InfoSec newsletter

A red team researcher demonstrated how to bypass LSASS memory protections on Windows 11 by exploiting a vulnerable version of WerFaultSecure.exe from Windows 8.1, which runs with the highest Protected Process Light (PPL) level and can access protected LSASS memory that normal processes cannot touch. The technique uses undocumented parameters to trigger unencrypted crash dumps of the LSASS process, then disguises the output file with PNG magic headers to evade antivirus detection. The attack requires deploying the older vulnerable WerFaultSecure.exe binary alongside a custom loader that launches the tool with proper PPL protections, demonstrating how legacy Windows components can be weaponized against modern security controls.