In fact, the real fsmainui.exe is designed to protect your computer from malware. However, virus creators sometimes name their malicious files after legitimate processes to hide in plain sight.
| Antivirus | UI Process Name | | :--- | :--- | | F-Secure | fsmainui.exe | | Norton | uiStub.exe or NortonSecurity.exe | | McAfee | McUICnt.exe | | Kaspersky | avpui.exe | | Bitdefender | bdagent.exe | | Windows Defender | MSASCui.exe (older) or SecurityHealthSystray.exe | fsmainui.exe
The typical full path is: C:\Program Files (x86)\F-Secure\Common\FSMUI\fsmainui.exe In fact, the real fsmainui