Did you just stumble upon a file that has a digital signature from Tensai Limited? If that's the case, please read on.
You'll typically see Tensai Limited when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Tensai Limited with the following steps:
Here is a screenshot of a file that has been digitally signed by Tensai Limited:

As you can see in the screengrab above, Windows reports that "This digital signature is OK". This means that the file has been published by Tensai Limited and that the file has not been tampered with.
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 view the address for Tensai Limited, such as the street name, city and country.
COMODO RSA Code Signing CA has issued the Tensai Limited certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Tensai Limited files I have collected, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Tensai Limited files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Tensai Limited.
| Detection Ratio | File Name |
|---|---|
| Not available | FHPlugin2_6_1.exe |
The analysis is based on certificates with the following serial numbers: