30% CPU usage on idle , maybe a crypto-miner

Behavior:

by open task manager , the usage drop

Investigation :

by run "SCHTASKS" commnad in cmd and compare it with healty PC , found some suspicious lines:

NvNodeLauncher NvTmRep_CrashReport1_ NvTmRep_CrashReport2_ NvTmRep_CrashReport3_ NvTmRep_CrashReport4_ GoogleSystem?

powershellsecureboot

After remove them the problem seems to be solved.

Prolem first apeared:

after installing adult game from some site from the web

TBD: name and dangerous domains

Prolem #2 the Antivirus

the Antivirus didnt spot this even when scaning the exe file itself.

Tool used:

task scheduler

task manager

command:

SCHTASKS /Query /FO TABLE /NH /V > SCHTASKS.txt