Did you just run into a file that is digitally signed by LifeSoft LLC? If so, please read on.
You will typically notice LifeSoft LLC when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for LifeSoft LLC with the following procedure:
Here is a screengrab of a file signed by LifeSoft LLC:

As you can see in the screenshot above, the Windows OS reports that "This digital signature is OK". This implies that the file has been published by LifeSoft LLC and that the file has not been tampered with.
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, and so on. You can also examine the address for LifeSoft LLC, such as the street name, city and country.
thawte SHA256 Code Signing CA has issued the LifeSoft LLC certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the LifeSoft LLC files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/64 | VKlife3.exe |
The detection percentage is based on that I've gathered 64 scan reports for the LifeSoft LLC files. 0 of these scan results came up with some sort of detection. You can review 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: