Did you just stumble upon a file that has been digitally signed by Logitech Inc.? If so, please read on.
You'll typically notice Logitech Inc. when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:

You can view additional details from the Logitech Inc. certificate with the following procedure:
Here's a screenshot of a file that has been signed by Logitech Inc.:

As you can see in the screenshot above, the Windows OS reports that "This digital signature is OK". This means that the file has been published by Logitech Inc. and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can view all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also examine the address for Logitech Inc., such as the street name, city and country.
DigiCert EV Code Signing CA (SHA2) has issued the Logitech Inc. certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Logitech Inc. files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/73 | logi_core_temp.sys |
The detection percentage is based on that I have gathered 73 scan results for the Logitech Inc. files. 0 of these scan results came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.
The analysis has been done on certificates with the following serial numbers: