Did you just run into a download or a file on your computer that has been digitally signed by Hipgnosis Vision? Some of the security products refers to the detected files as not-a-virus:Downloader.Win32.Agent.ecmu and Win32/DownWare.L potentially unwanted. The detection rate for the Hipgnosis Vision files collected here is 24%. Please read on for more details.
You will typically notice Hipgnosis Vision when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the Hipgnosis Vision certificate with the following steps:
Here's a screenshot of a file that has been signed by Hipgnosis Vision:

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 Hipgnosis Vision and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot 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 Hipgnosis Vision, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA and Symantec Class 3 SHA256 Code Signing CA has issued the Hipgnosis Vision certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Hipgnosis Vision files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 1/51 | update133.exe |
| 2/56 | f_00013a |
| 15/56 | bitrope-burner-setup.exe |
| 18/54 | azureus_ultra_accelerator_free.exe |
| 16/55 | fox-encoder-setup.exe |
| 23/56 | BitTorrentTurboAccelerator_installer.exe |
| 18/61 | passmem-setup.exe |
Here's the detection names for the Hipgnosis Vision files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | Generic.8A0 |
| AVware | Trojan.Win32.Generic!BT, Trojan-Downloader.Win32.Agent |
| AegisLab | Troj.Downloader.W32.Agent!c |
| Agnitum | Riskware.Agent!, PUA.Downloader! |
| AhnLab-V3 | Win-PUP/Adload, PUP/Win32.Adload |
| Antiy-AVL | RiskWare[Downloader]/Win32.Agent.ecmu, GrayWare[Downloader:not-a-virus]/Win32.Adload.gen |
| Baidu-International | PUA.Win32.DownWare.L, PUA.MSIL.HipgnosisBrains.A |
| Bkav | W32.HfsAdware.26F0 |
| DrWeb | Program.Unwanted.362 |
| ESET-NOD32 | Win32/DownWare.L, Win32/DownWare.L potentially unwanted |
| Endgame | malicious (moderate confidence) |
| Fortinet | Riskware/Downware, Riskware/Agent |
| GData | Win32.Application.Agent.TVY3M7, Win32.Trojan.Agent.UJYYMA, Win32.Application.Agent.322LL6 |
| K7AntiVirus | Unwanted-Program ( 004ced3f1 ) |
| K7GW | Unwanted-Program ( 004ced3f1 ) |
| Kaspersky | not-a-virus:Downloader.Win32.Agent.ecmu |
| McAfee | Artemis!8F1D72158323, Artemis!54C5E4FA6B66, Artemis!2520F6005DD4 |
| McAfee-GW-Edition | Artemis, BehavesLike.Win32.PUP.tc |
| NANO-Antivirus | Trojan.Win32.Agent.eaytvr |
| Paloalto | generic.ml |
| Qihoo-360 | Trojan.Generic, Win32/Virus.Downloader.2f0, HEUR/QVM42.1.Malware.Gen |
| Rising | PE:Malware.Generic/QRS!1.9E2D [F] |
| SUPERAntiSpyware | PUP.AdLoad/Variant |
| Sophos | Generic PUA DK (PUA), Generic PUA NO (PUA), Generic PUA BI (PUA) |
| TrendMicro-HouseCall | TROJ_GEN.R002H07AO18 |
| VBA32 | Downloader.Agent |
| VIPRE | Trojan.Win32.Generic!BT, Trojan-Downloader.Win32.Agent |
| Webroot | Pua.Downloadmanager |
| Yandex | PUA.Downloader! |
| Zillya | Downloader.Agent.Win32.276312, Downloader.Agent.Win32.275958, Adware.AdLoadCRT.Win32.925 |
| ZoneAlarm | not-a-virus:Downloader.Win32.Agent.ecmu |
The detection percentage is based on that I have collected 389 scan results for the Hipgnosis Vision files. 93 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 done on certificates with the following serial numbers: