Did you just run into a file that is digitally signed by 上海广乐网络科技有限公司? If so, please read on.
You will typically notice 上海广乐网络科技有限公司 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 view additional details from the 上海广乐网络科技有限公司 certificate with the following procedure:
Here's a screenshot of a file signed by 上海广乐网络科技有限公司:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This means that the file has been published by 上海广乐网络科技有限公司 and that the file has not been tampered with.
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 see the address for 上海广乐网络科技有限公司, such as the street name, city and country.
DigiCert Assured ID Code Signing CA-1 has issued the 上海广乐网络科技有限公司 certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the 上海广乐网络科技有限公司 files I have gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the 上海广乐网络科技有限公司 files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by 上海广乐网络科技有限公司.
| Detection Ratio | File Name |
|---|---|
| Not available | pbxhone.exe |
The analysis has been done on certificates with the following serial numbers: