EDR-Freeze Tool Overview & Its (Defender-Focused) Use Cases — By CyberDudeBivash

What is “EDR-Freeze”? (Defender’s Summary) In late September 2025, researchers and infosec outlets described a proof-of-concept technique nicknamed EDR-Freeze that attempts to suspend endpoint security processes (EDR/AV) rather than uninstall or kill them. Reports say it abuses legitimate Windows diagnostics behavior , specifically Windows Error Reporting (WER) via WerFaultSecure.exe in combination with the MiniDumpWriteDump API, to place target processes into a prolonged “coma-like” suspended state. The intent is to create a temporary blind spot without dropping a vulnerable driver (i.e., not the typical BYOVD path). Cyber Security News +1 Several write-ups emphasize that this approach runs in user mode , leveraging WerFaultSecure.exe ’s privileges to interact with Protected Process Light (PPL) targets and extending the brief thread-suspension window used for memory dumps into a longer freeze—thereby “blinding” the EDR until the diagnostic process is released. Cyber ...