Application.AppInstall (A) [287991] but FRST64.exe is blocked by Windows

[Thommy_X]

Hello,

I run a Scan with Emsi and it found a file in SysWow64 folder. A cab with some exe inside with this Application.AppInstall (A)...

I downloaded FRST from Bleeding Computer but Windows says it will not be safe to start it? In Englisch:

The computer is protected by windows

MS Defender SmartScreen prevents the start of this unknown app. The execution of this app is a risk for your PC.

So I have 2 questions:

First: Can I just delete this one file in SysWOW64 folder? I am not really sure because SysWOW64 is a system folder. Here the EMSI Log

Emsisoft Emergency Kit – Version 2021.4
Letztes Update: 04.08.2021 08:51:54
Eigene ARNIKA\andi
 ARNIKA
 Windows 7x64 Service Pack 1

Scan-Einstellungen:

Scan-Methode: Eigener Scan
Objekte: Rootkits, Speicher, Spuren, C:\

PUPs-Erkennung: An
Archive scannen: An
E-Mail-Archive scannen: An
ADS-Scan: An
Direkter Festplattenzugriff: Aus

Scan-Beginn:	04.08.2021 09:22:31
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Downloaded Installations\{3BD9A53F-F9BC-44DF-B0FA-6DD88C79F92A}\Chip Installer.msi -> (Embedded CAB) -> chip_active_download.exe 	erkannt: Application.AppInstall (A) [287991]
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Downloaded Installations\{3BD9A53F-F9BC-44DF-B0FA-6DD88C79F92A}\Chip Installer.msi -> (Embedded CAB) -> chip_starter.exe 	erkannt: Application.AppInstall (A) [287991]
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Downloaded Installations\{3BD9A53F-F9BC-44DF-B0FA-6DD88C79F92A}\Chip Installer.msi -> (Embedded CAB) -> chip_updater.exe 	erkannt: Application.AppInstall (A) [287991]
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Downloaded Installations\{3BD9A53F-F9BC-44DF-B0FA-6DD88C79F92A}\Chip Installer.msi -> (Embedded CAB) -> splashform.exe 	erkannt: Application.AppInstall (A) [287991]

Gescannt:	320116
Gefunden	4

Scan-Ende:	04.08.2021 09:44:00
Scan-Zeit:	0:21:29

Second Question:

Would it be safe to start this FRST64.exe? VirusTotal.com reports also 2 findings:

 

[ShadowPuterDude]

It is safe to start FRST.  Otherwise we would not ask you to use the tool.