Did you just run into a download or a file on your computer that has a digital signature from KawagaSoft? Some of the security products refers to the detected files as Artemis!9F83E3987A5F and a variant of Win32/InstallCore.OJ. The detection rate for the KawagaSoft files collected here is 23%. Please read on for more details.
You'll typically see KawagaSoft when 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 the additional details from the KawagaSoft digital signature with the following steps:
Here is a screenshot of a file digitally signed by KawagaSoft:

As you can see in the screengrab above, Windows states that "This digital signature is OK". This means that the file has been published by KawagaSoft and that no one has tampered with the file.
If you click the View Certificate button shown in the screencap 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 view the address for KawagaSoft, such as the street name, city and country.
COMODO Code Signing CA 2 has issued the KawagaSoft 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 KawagaSoft files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 12/53 | FreeFileViewerSetup-16308238.exe |
Here is the detection names for the KawagaSoft files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | Generic.D6B |
| Agnitum | PUA.InstallCore! |
| Avast | Win32:Malware-gen |
| DrWeb | Trojan.Packed.25266 |
| ESET-NOD32 | a variant of Win32/InstallCore.OJ |
| Malwarebytes | PUP.Optional.Installcore |
| McAfee | Artemis!9F83E3987A5F |
| McAfee-GW-Edition | Artemis!9F83E3987A5F |
| Sophos | Install Core Click run software |
| TrendMicro-HouseCall | TROJ_GEN.F47V0505 |
| VBA32 | Downware.InstallCore |
| VIPRE | InstallCore.b (fs) |
The detection percentage is based on that I have gathered 53 scan reports for the KawagaSoft files. 12 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 based on certificates with the following serial numbers: