Did you just find a download or a file on your computer that is digitally signed by Zhangkong Internet Technology Co., Ltd.? If so, please read on.
You will typically notice Zhangkong Internet Technology Co., Ltd. when 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 the digital signature details for Zhangkong Internet Technology Co., Ltd. with the following procedure:
Here's a screenshot of a file that has been digitally signed by Zhangkong Internet Technology Co., Ltd.:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This means that the file has been published by Zhangkong Internet Technology Co., Ltd. and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can view 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 Zhangkong Internet Technology Co., Ltd., such as the street name, city and country.
WoSign Class 3 Code Signing CA has issued the Zhangkong Internet Technology Co., Ltd. certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Zhangkong Internet Technology Co., Ltd. files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/61 | zkservice.exe |
The detection percentage is based on that I've gathered 61 scan results for the Zhangkong Internet Technology Co., Ltd. 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: