Did you just run into a download or a file on your computer that has been digitally signed by United Backup? Some of the security products refers to the detected files as Adware ( 004e57e51 ) and Trojan.Win32.Generic!BT. The detection rate for the United Backup files collected here is 15%. Please read on for more details.
You will probably notice United Backup when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:

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

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 United Backup 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 United Backup, such as the street name, city and country.
DigiCert SHA2 Assured ID Code Signing CA has issued the United Backup certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screencap above.
The following are the United Backup files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 19/57 | _silent_pcw_signed8.exe |
Here is the detection names for the United Backup files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | MultiDropper_c.BIXC |
| AVware | Trojan.Win32.Generic!BT |
| Ad-Aware | Gen:Variant.Mikey.49822 |
| AegisLab | Adwareare.Gertokr.Hkjo!c |
| Avast | Win32:Adware-gen [Adw] |
| Avira | ADWARE/Gertokr.hkjo |
| DrWeb | Adware.Gertokr.2 |
| ESET-NOD32 | a variant of Win32/Adware.Gertokr.R |
| F-Secure | Gen:Variant.Razy.63700 |
| Fortinet | Riskware/Gertokr |
| Ikarus | PUA.Gertokr |
| K7AntiVirus | Adware ( 004e57e51 ) |
| K7GW | Adware ( 004e57e51 ) |
| Malwarebytes | PUP.Optional.BundleInstaller |
| Qihoo-360 | HEUR/QVM41.2.Malware.Gen |
| Rising | Malware.Generic!SWRxCEq11YT@5 (Thunder) |
| Sophos | Generic PUA IF (PUA) |
| Symantec | Trojan.Gen.2 |
| VIPRE | Trojan.Win32.Generic!BT |
The detection percentage is based on that I've gathered 128 scan reports for the United Backup files. 19 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: