Did you just run into a download or a file on your computer that is digitally signed by Rihwi Qanto? Some of the security products refers to the detected files as Gen:Variant.Adware.Zusy.177296 and Gen:Variant.Adware.Zusy.177296 (B). The detection rate for the Rihwi Qanto files collected here is 31%. Please read on for more details.
You will probably notice Rihwi Qanto when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the Rihwi Qanto certificate with the following procedure:
Here's a screenshot of a file that has been digitally signed by Rihwi Qanto:

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 Rihwi Qanto and that no one has tampered with the file.
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, and so on. You can also examine the address for Rihwi Qanto, such as the street name, city and country.
Dykbor Ucigj has issued the Rihwi Qanto certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Rihwi Qanto files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 17/55 | Lagsuu.exe |
Here's the detection names for the Rihwi Qanto files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Gen:Variant.Adware.Zusy.177296 |
| AVG | Generic_r.BCJ |
| Ad-Aware | Gen:Variant.Adware.Zusy.177296 |
| AhnLab-V3 | PUP/Win32.Pennybee |
| Arcabit | Trojan.Adware.Zusy.D2B490 |
| Avast | Win32:Adware-gen [Adw] |
| BitDefender | Gen:Variant.Adware.Zusy.177296 |
| Emsisoft | Gen:Variant.Adware.Zusy.177296 (B) |
| F-Secure | Gen:Variant.Adware.Zusy |
| GData | Gen:Variant.Adware.Zusy.177296 |
| Jiangmin | Trojan.Patcher.ab |
| Kaspersky | UDS:DangerousObject.Multi.Generic |
| MicroWorld-eScan | Gen:Variant.Adware.Zusy.177296 |
| Panda | Trj/Genetic.gen |
| Qihoo-360 | HEUR/QVM10.1.Malware.Gen |
| Rising | PE:Malware.Generic(Thunder)!1.A1C4 [F] |
| Tencent | Win32.Trojan.Falsesign.Dvgf |
The detection percentage is based on that I have collected 55 scan results for the Rihwi Qanto files. 17 of these scan results came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.
The analysis is done on certificates with the following serial numbers: