Did you just stumble upon a file that has been digitally signed by narasoft Co.,Ltd? If so, please read on.
You will typically see narasoft Co.,Ltd when 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 the additional details from the narasoft Co.,Ltd digital signature with the following steps:
Here's a screenshot of a file digitally signed by narasoft Co.,Ltd:

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 narasoft 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 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 narasoft Co.,Ltd, such as the street name, city and country.
Thawte Code Signing CA - G2 has issued the narasoft Co.,Ltd certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the narasoft Co.,Ltd files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/68 | NSchoolUpdater.exe |
The detection percentage is based on that I've gathered 68 scan results for the narasoft Co.,Ltd 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: