Did you just run into a download or a file on your computer that is digitally signed by Ostap Laponov? Some of the security products refers to the detected files as Adware.Agent.NTQ and PUP-FDQ!614DC1CC4E0D. The detection rate for the Ostap Laponov files collected here is 33%. Please read on for more details.
You will typically notice Ostap Laponov when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:

You can view the digital signature details for Ostap Laponov with the following procedure:
Here is a screengrab of a file that has been digitally signed by Ostap Laponov:

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 Ostap Laponov 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 see the address for Ostap Laponov, such as the street name, city and country.
COMODO Code Signing CA 2 has issued the Ostap Laponov certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screencap above.
These are the Ostap Laponov files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 16/48 | IKb488YHK[1].exe |
Here's the detection names for the Ostap Laponov files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | MalSign.Generic.848 |
| Ad-Aware | Adware.Agent.NTQ |
| AntiVir | ADWARE/Adware.Gen7 |
| Avast | Win32:InstMonetizer-J [PUP] |
| BitDefender | Adware.Agent.NTQ |
| Comodo | Application.Win32.Multiplug.KI |
| DrWeb | Trojan.Crossrider.31 |
| ESET-NOD32 | a variant of Win32/AdWare.MultiPlug.M |
| Emsisoft | Adware.Agent.NTQ (B) |
| F-Secure | Adware.Agent.NTQ |
| GData | Adware.Agent.NTQ |
| McAfee | PUP-FDQ!614DC1CC4E0D |
| McAfee-GW-Edition | PUP-FDQ!614DC1CC4E0D |
| MicroWorld-eScan | Adware.Agent.NTQ |
| Panda | Trj/Genetic.gen |
| Rising | PE:PUF.Graftor!1.9C49 |
The detection percentage is based on the fact that I have collected 48 scan results for the Ostap Laponov files. 16 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: