Did you just stumble upon a file that has been digitally signed by Ltd. Kompaniya Riman? If so, please read on.
You will typically see Ltd. Kompaniya Riman when clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:

You can also view the Ltd. Kompaniya Riman certificate with the following steps:
Here is a screenshot of a file signed by Ltd. Kompaniya Riman:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This implies that the file has been published by Ltd. Kompaniya Riman and that no one has tampered with the file.
If you click the View Certificate button shown in the screengrab 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, and so on. You can also examine the address for Ltd. Kompaniya Riman, such as the street name, city and country.
thawte SHA256 Code Signing CA has issued the Ltd. Kompaniya Riman certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Ltd. Kompaniya Riman files I have gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Ltd. Kompaniya Riman files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Ltd. Kompaniya Riman.
| Detection Ratio | File Name |
|---|---|
| Not available | ridoc.exe |
The analysis is based on certificates with the following serial numbers: