The Windows Security app displays a blank screen or fails to open.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc\Security] "Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02, 00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00, 00,00,02,00,78,00,05,00,00,00,00,00,14,00,8d,00,02,00,01,01,00,00,00,00,00, 05,0b,00,00,00,00,00,14,00,8d,00,02,00,01,01,00,00,00,00,00,05,04,00,00,00, 00,00,14,00,9d,00,00,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,00,18,00,ff, 01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,20,02,00,00,00,00,14,00,ff,01, 0f,00,01,01,00,00,00,00,00,05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00, 00,00,00,00,05,20,00,00,00,20,02,00,00,00,00,14,00,ff,01,0f,00,01,01,00,00, 00,00,00,05,13,00,00,00,00,00,14,00,ff,01,0f,00,01,01,00,00,00,00,00,05,14, 00,00,00,01,01,00,00,00,00,00,05,07,00,00,00
: Malicious software often attempts to delete the registry keys for wscsvc to hide its presence.