Did you just run into a file that has been digitally signed by Sunhan ID Co., Ltd.? If so, please read on.
You will probably see Sunhan ID Co., Ltd. when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screengrab shows:

You can view additional details from the Sunhan ID Co., Ltd. certificate with the following steps:
Here's a screenshot of a file that has been signed by Sunhan ID Co., Ltd.:

As you can see in the screenshot above, Windows states that "This digital signature is OK". This means that the file has been published by Sunhan ID 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 examine 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 Sunhan ID Co., Ltd., such as the street name, city and country.
Thawte Code Signing CA - G2 has issued the Sunhan ID Co., Ltd. certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Sunhan ID Co., Ltd. files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/55 | FilenoriService.exe |
| 0/55 | FilenoriLocal.exe |
The detection percentage is based on the fact that I've gathered 110 scan reports for the Sunhan ID Co., Ltd. files. 0 of these scan reports came up with some sort of detection. If you like, you can view the full details of the scan results by examining the files listed above.
The analysis is based on certificates with the following serial numbers: