Did you just find a file that has a digital signature from BeyondTrust Corp? If so, please read on.
You'll typically see BeyondTrust Corp when running the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screencap shows:

You can view the digital signature details for BeyondTrust Corp with the following procedure:
Here is a screenshot of a file that has been digitally signed by BeyondTrust Corp:

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 BeyondTrust Corp and that the file has not been tampered with.
If you click the View Certificate button shown in the screengrab 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, and so on. You can also see the address for BeyondTrust Corp, such as the street name, city and country.
VeriSign Class 3 Code Signing 2009-2 CA has issued the BeyondTrust Corp certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the BeyondTrust Corp files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/56 | privman64.dll |
| 0/56 | btpload64.dll |
| 0/42 | pmbho.dll |
The detection percentage is based on that I've gathered 154 scan reports for the BeyondTrust Corp files. 0 of these scan results came up with some sort of detection. You can view the full details of the scan results by examining the files listed above.
The analysis has been done on certificates with the following serial numbers: