Did you just stumble upon a download or a file on your computer that has been digitally signed by Weiwei He? Some of the security products refers to the detected files as Riskware ( 0049f6ae1 ) and Opencandy (fs). The detection rate for the Weiwei He files collected here is 6%. Please read on for more details.
You'll typically see Weiwei He when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the Weiwei He certificate with the following procedure:
Here's a screenshot of a file that has been signed by Weiwei He:

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 Weiwei He 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 examine the address for Weiwei He, such as the street name, city and country.
thawte SHA256 Code Signing CA has issued the Weiwei He certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Weiwei He files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 6/54 | cktSvc.exe |
| 5/56 | UncheckitSvc.exe |
| 4/55 | uncheckitsvc.exe |
| 3/56 | ouilibx.dll |
| 2/58 | UncheckitUpdate.exe |
Here's the detection names for the Weiwei He files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVware | Opencandy (fs) |
| AhnLab-V3 | PUP/Win32.Uncheckit.C1495012 |
| DrWeb | Adware.Mutabaha.1700, Adware.Mutabaha.1819 |
| Ikarus | Trojan.Win32.Chuckenit |
| K7AntiVirus | Riskware ( 0049f6ae1 ) |
| K7GW | Riskware ( 0049f6ae1 ) |
| McAfee | Artemis!10544FC8A591 |
| McAfee-GW-Edition | Artemis!Trojan |
| VIPRE | Opencandy (fs) |
The detection percentage is based on that I've collected 334 scan reports for the Weiwei He files. 20 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 is done on certificates with the following serial numbers: