Did you just stumble upon a file that has a digital signature from SoftTree Technologies, Inc.? If that's the case, please read on.
You will probably see SoftTree Technologies, Inc. when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the SoftTree Technologies, Inc. certificate with the following procedure:
Here's a screencap of a file that has been signed by SoftTree Technologies, Inc.:

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