Did you just run into a download or a file on your computer that has a digital signature from Kantida Chanudrum? Some of the security products refers to the detected files as PUP.Optional.OneClickDownloader.A and Trojan.Win32.Generic!BT. The detection rate for the Kantida Chanudrum files collected here is 7%. Please read on for more details.
You will typically notice Kantida Chanudrum when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Kantida Chanudrum with the following procedure:
Here's a screenshot of a file that has been digitally signed by Kantida Chanudrum:

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 Kantida Chanudrum and that no one has tampered with the file.
If you click the View Certificate button shown in the screencap above, you can examine 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 Kantida Chanudrum, such as the street name, city and country.
Thawte Code Signing CA - G2 has issued the Kantida Chanudrum certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Kantida Chanudrum files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 1/50 | Game_of_Thrones_Season_3_OST_Soundtrack_by_Ramin_Djawadi.exe |
| 1/51 | Game_of_thrones_S02E01_HDTV.exe |
| 8/53 | 00000001 |
| 4/51 | How_I_Met_Your_Mother_S09_Season_9_HDTV_AAC_x264.exe |
Here is the detection names for the Kantida Chanudrum files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | Generic.403 |
| AntiVir | APPL/CoolMirage.A.21 |
| DrWeb | Adware.Downware.5516 |
| GData | NSIS.Application.OneClickDownloader.C |
| Ikarus | PUA.AppBundler |
| Malwarebytes | PUP.Optional.OneClickDownloader.A |
| McAfee | Adware-SweetIM |
| Sophos | Install Core |
| Tencent | Win32.Adware.Bp-installer.Bytb |
| TrendMicro-HouseCall | Suspicious_GEN.F47V0702 |
| VIPRE | Trojan.Win32.Generic!BT |
The detection percentage is based on the fact that I have gathered 205 scan reports for the Kantida Chanudrum files. 14 of these scan reports came up with some sort of detection. If you like, 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: