If you’ve determined net5system.exe is malicious, follow these steps in order. Do not simply delete the file – malware often recreates itself.
If your investigation leads you to believe net5system.exe is malicious, do not attempt to simply delete the file while it is running. Malware often creates registry keys that will reinstall the file upon reboot. net5system.exe
Reboot your computer and check Task Manager again. Run a full scan with Windows Defender Offline. Monitor for 24 hours to ensure the process doesn’t return. If you’ve determined net5system