Did you just download a file that is digitally signed by Mengmeng Wang and wonder if the file is safe? If that's the case, please read on.
You will typically see Mengmeng Wang when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screengrab shows:

You can also view the Mengmeng Wang certificate with the following steps:
Here's a screengrab of a file digitally signed by Mengmeng Wang:

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 Mengmeng Wang 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 see the address for Mengmeng Wang, such as the street name, city and country.
thawte SHA256 Code Signing CA has issued the Mengmeng Wang 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 Mengmeng Wang files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/57 | $RGQTGR9.exe |
| 0/56 | qipcap.dll |
| 0/56 | breakpadinjector.dll |
| 0/59 | Firefox.exe |
The detection percentage is based on the fact that I've collected 228 scan reports for the Mengmeng Wang 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: