Did you just run into a download or a file on your computer that has a digital signature from Lizardlink? Some of the security products refers to the detected files as Win32.Troj.Generic.a.(kcloud) and Adware.Plugin.100. The detection rate for the Lizardlink files collected here is 4%. Please read on for more details.
You will typically notice Lizardlink when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the Lizardlink certificate with the following procedure:
Here's a screencap of a file signed by Lizardlink:

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 Lizardlink 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 Lizardlink, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Lizardlink certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Lizardlink files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 4/48 | Lizardlinkbho.dll |
| 4/46 | updateLizardlink.exe |
| 0/47 | utilLizardlink.exe |
| 0/50 | {215f3947-4d13-46f7-95aa-328779d361ce}w64.sys |
Here's the detection names for the Lizardlink files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| DrWeb | Adware.Plugin.100 |
| ESET-NOD32 | probably a variant of Win32/BrowseFox.A, a variant of MSIL/BrowseFox.A |
| Kingsoft | Win32.Troj.Generic.a.(kcloud) |
| Malwarebytes | PUP.Optional.Lizardlink.A |
| VIPRE | Yontoo (fs) |
The detection percentage is based on that I have gathered 191 scan results for the Lizardlink files. 8 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 has been done on certificates with the following serial numbers: