BEST APP - 22% Detection Rate *
Did you just find a download or a file on your computer that has been digitally signed by BEST APP? Some of the security products refers to the detected files as Riskware/OutBrowse and Adware ( 004c15551 ). The detection rate for the BEST APP files collected here is 22%. Please read on for more details.
You will typically notice BEST APP when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view additional details from the BEST APP certificate with the following steps:
- Open Windows Explorer and locate the BEST APP file
- Right-click on the file and select Properties
- Click the Digital Signatures tab
- Click on the View Certificate button
Here is a screenshot of a file signed by BEST APP:
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 BEST APP and that no one has tampered with the file.
If you click the View Certificate button shown in the screengrab 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, etc. You can also view the address for BEST APP, such as the street name, city and country.
thawte SHA256 Code Signing CA has issued the BEST APP certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
BEST APP Files
These are the BEST APP files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 7/56 | Installation.exe |
| 18/57 | Player.exe |
Scanner and Detection Names
Here is the detection names for the BEST APP files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVG | Downloader.DCZ, Downloader.UVA |
| AhnLab-V3 | PUP/Win32.OutBrowse |
| Antiy-AVL | GrayWare[AdWare:not-a-virus,HEUR]/Win32.OutBrowse |
| Avira | APPL/Outbrowse.Gen, PUA/Outbrowse.Gen |
| DrWeb | Trojan.OutBrowse.1215 |
| ESET-NOD32 | Win32/OutBrowse.BR, a variant of Win32/OutBrowse.BZ potentially unwanted |
| Fortinet | Riskware/OutBrowse |
| GData | Win32.Adware.Outbrowse.Z |
| Ikarus | PUA.OutBrowse |
| K7AntiVirus | Adware ( 004c15551 ) |
| K7GW | DoS-Trojan ( 20055ed71 ), Adware ( 004c15551 ) |
| Kaspersky | not-a-virus:HEUR:AdWare.Win32.OutBrowse.heur |
| Malwarebytes | PUP.Optional.OutBrowse |
| McAfee | Adware-OutBrowse.h |
| McAfee-GW-Edition | Adware-OutBrowse.h |
| Sophos | Generic PUA OP (PUA) |
| VBA32 | Downloader.OutBrowse |
| VIPRE | OutBrowse |
| Zillya | Adware.OutBrowseGen.Win32.1 |
* How the Detection Percentage is Calculated
The detection percentage is based on that I have gathered 113 scan reports for the BEST APP files. 25 of these scan reports came up with some sort of detection. If you like, you can view the full details of the scan results by examining the files listed above.
Analysis Details
In the analysis on this page I grouped all certificates where the signer name is set to upper and lower case variants of BEST APP. These are the signer names:
- BEST APP
- BeST ApP
The analysis is based on certificates with the following serial numbers:
- 1d0774d8d3a913bed64f71672a861c69
- 64e1250df629bd3901aa90a77d70239e