Did you just find a download or a file on your computer that has a digital signature from Jeb Katpuj? Some of the security products refers to the detected files as Gen:Variant.Zusy.184536 and a variant of Win32/NopleMento.E. The detection rate for the Jeb Katpuj files collected here is 40%. Please read on for more details.
You'll probably notice Jeb Katpuj 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 Jeb Katpuj digital signature with the following procedure:
Here's a screenshot of a file signed by Jeb Katpuj:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by Jeb Katpuj and that the file has not been tampered with.
If you click the View Certificate button shown in the screengrab above, you can view 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 examine the address for Jeb Katpuj, such as the street name, city and country.
Zocv Riukfa has issued the Jeb Katpuj certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Jeb Katpuj files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 23/57 | hatfomd.exe |
Here is the detection names for the Jeb Katpuj files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Gen:Variant.Zusy.184536 |
| AVG | Generic_r.HSW |
| Ad-Aware | Gen:Variant.Zusy.184536 |
| Arcabit | Trojan.Zusy.D2D0D8 |
| Avast | Win32:Adware-gen [Adw] |
| Avira | TR/Taranis.2475 |
| BitDefender | Gen:Variant.Zusy.184536 |
| Comodo | Application.Win32.Perion.K |
| ESET-NOD32 | a variant of Win32/NopleMento.E |
| Emsisoft | Gen:Variant.Zusy.184536 (B) |
| F-Secure | Gen:Variant.Zusy.184536 |
| Fortinet | W32/Noplemento.AD!tr |
| GData | Gen:Variant.Zusy.184536 |
| Jiangmin | AdWare.Zhoppers.a |
| K7GW | Hacktool ( 655367771 ) |
| Kaspersky | not-a-virus:HEUR:AdWare.Win32.Bupoluk.gen |
| Malwarebytes | PUP.Optional.Shopperz |
| McAfee-GW-Edition | BehavesLike.Win32.Multiplugdll.ch |
| MicroWorld-eScan | Gen:Variant.Zusy.184536 |
| Panda | Trj/GdSda.A |
| Qihoo-360 | HEUR/QVM10.1.0000.Malware.Gen |
| Rising | PE:Malware.Generic(Thunder)!1.A1C4 [F] |
| Tencent | Win32.Trojan.Falsesign.Aglj |
The detection percentage is based on that I have gathered 57 scan results for the Jeb Katpuj files. 23 of these scan reports came up with some sort of detection. You can view the full details of the scan results by examining the files listed above.
The analysis is done on certificates with the following serial numbers: