Did you just stumble upon a file that is digitally signed by SHANGHAI ZHONGYUAN NETWORKS LIMITED? If so, please read on.
You will probably notice SHANGHAI ZHONGYUAN NETWORKS LIMITED when double-clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the SHANGHAI ZHONGYUAN NETWORKS LIMITED certificate with the following steps:
Here is a screengrab of a file that has been signed by SHANGHAI ZHONGYUAN NETWORKS LIMITED:

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 SHANGHAI ZHONGYUAN NETWORKS LIMITED and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can see 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 view the address for SHANGHAI ZHONGYUAN NETWORKS LIMITED, such as the street name, city and country.
VeriSign Class 3 Code Signing 2009-2 CA has issued the SHANGHAI ZHONGYUAN NETWORKS LIMITED certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the SHANGHAI ZHONGYUAN NETWORKS LIMITED files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/51 | PPSAP.exe |
The detection percentage is based on the fact that I have collected 51 scan results for the SHANGHAI ZHONGYUAN NETWORKS LIMITED files. 0 of these scan reports 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 is done on certificates with the following serial numbers: