Did you just stumble upon a file that has a digital signature from Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd? If that's the case, please read on.
You will typically see Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd when double-clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd certificate with the following procedure:
Here's a screenshot of a file that has been signed by Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This means that the file has been published by Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can see all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, and so on. You can also see the address for Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd, such as the street name, city and country.
WoSign Class 3 Code Signing CA has issued the Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/55 | adb.exe |
The detection percentage is based on that I have collected 55 scan reports for the Fuzhou Xianzhi Ruishi Information Technology Co.,Ltd files. 0 of these scan reports came up with some sort of detection. You can review the full details of the scan reports by examining the files listed above.
The analysis is based on certificates with the following serial numbers: