Did you just stumble upon a download or a file on your computer that has a digital signature from HARASAN PRAPAPON? Some of the security products refers to the detected files as PUP.Optional.OneClickDownloader.A and Win32/Virus.Adware.47b. The detection rate for the HARASAN PRAPAPON files collected here is 9%. Please read on for more details.
You will probably notice HARASAN PRAPAPON when double-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 additional details from the HARASAN PRAPAPON digital signature with the following steps:
Here is a screenshot of a file that has been signed by HARASAN PRAPAPON:

As you can see in the screenshot above, Windows states that "This digital signature is OK". This means that the file has been published by HARASAN PRAPAPON 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, etc. You can also view the address for HARASAN PRAPAPON, such as the street name, city and country.
Thawte Code Signing CA - G2 has issued the HARASAN PRAPAPON certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screengrab above.
These are the HARASAN PRAPAPON files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 8/53 | TheHDvid-Codec V10-bho64.dll |
| 3/53 | 00000000 |
| 2/52 | How_I_Met_Your_Mother_S09E23-E24_HDTV_x264-EXCELLENCE_[eztv].exe |
| 5/52 | 00000000 |
Here is the detection names for the HARASAN PRAPAPON files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | Generic.CA0 |
| AntiVir | ADWARE/CrossRider.Gen2 |
| Antiy-AVL | RiskWare[WebToolbar:not-a-virus]/Win32.CroRi |
| ESET-NOD32 | a variant of Win64/Toolbar.Crossrider.F |
| Ikarus | PUA.CrossRider |
| Kingsoft | Win32.Troj.Generic.a.(kcloud) |
| Malwarebytes | PUP.Optional.HDVid.A, PUP.Optional.OneClickDownloader.A |
| Panda | PUP/MultiToolbar.A |
| Qihoo-360 | Win32/Virus.Adware.47b |
| TrendMicro-HouseCall | TROJ_GEN.F47V0518, TROJ_GEN.F47V0522 |
| VIPRE | Crossrider (fs), BubbleDock (fs) |
The detection percentage is based on the fact that I've gathered 210 scan reports for the HARASAN PRAPAPON files. 18 of these scan results came up with some sort of detection. If you like, you can review the full details of the scan results by examining the files listed above.
The analysis is based on certificates with the following serial numbers: