Did you just find a file that has a digital signature from UPEK Inc.? If so, please read on.
You will probably notice UPEK Inc. when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the UPEK Inc. certificate with the following procedure:
Here's a screenshot of a file digitally signed by UPEK Inc.:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by UPEK Inc. 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, etc. You can also examine the address for UPEK Inc., such as the street name, city and country.
VeriSign Class 3 Code Signing 2004 CA and VeriSign Class 3 Code Signing 2009-2 CA has issued the UPEK Inc. certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screengrab above.
These are the UPEK Inc. files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 1/41 | homefus2.dll |
| 1/51 | provider.dll |
| 0/43 | upeksvr.exe |
| 0/43 | psqlpwd.dll |
| 0/47 | upeksvr.exe |
| 0/50 | upeksvr.exe |
| 0/51 | launcher.exe |
| 0/46 | smihlp.sys |
| 0/49 | vtapipql.dll |
| 0/47 | homefus2.dll |
| 0/42 | launcher.exe |
Here's the detection names for the UPEK Inc. files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AegisLab | W32.Elkern |
| ClamAV | PUA.Win32.Packer.Msvcpp-1 |
The detection percentage is based on that I have gathered 1868 scan reports for the UPEK Inc. files. 2 of these scan results came up with some sort of detection. If you like, you can view the full details of the scan reports by examining the files listed above.
The analysis is based on certificates with the following serial numbers: