Apps Installer SL - 34% Detection Rate *

Did you just find a download or a file on your computer that has a digital signature from Apps Installer SL? Some of the security products refers to the detected files as Application.Downloader.SK and Application.Bundler.Firseria.B. The detection rate for the Apps Installer SL files collected here is 34%. Please read on for more details.

You will typically notice Apps Installer SL when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where Apps Installer SL appears as the verified publisher in the UAC dialog

You can view the additional details from the Apps Installer SL digital signature with the following procedure:

  1. Open Windows Explorer and locate the Apps Installer SL file
  2. Right-click the file and select Properties
  3. Click the Digital Signatures tab
  4. Click on the View Certificate button

Here's a screencap of a file signed by Apps Installer SL:

Screenshot of the Apps Installer SL certificate

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 Apps Installer SL 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, and so on. You can also examine the address for Apps Installer SL, such as the street name, city and country.

GlobalSign CodeSigning CA - G2 has issued the Apps Installer SL certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.

Apps Installer SL Files

The following are the Apps Installer SL files I've collected, thanks to the FreeFixer users.

Detection RatioFile Name

Scanner and Detection Names

Here's the detection names for the Apps Installer SL files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

ScannerDetection Names
AVGBundleApp.DH, BundleApp.AQ, BundleApp.DJ
Ad-AwareApplication.Downloader.SK, Gen:Variant.Graftor.136733, Application.Bundler.Firseria.B
AntiVirAPPL/Firseria.A.30, APPL/Firseria.A.2
AvastWin32:Adware-BQN [Trj]
BitDefenderApplication.Downloader.SK, Gen:Variant.Graftor.136733, Application.Bundler.Firseria.B
ComodoApplication.Win32.Firseria.CJL, Application.Win32.FirseriaInstaller.RRA
DrWebTrojan.DownLoader11.4341, Adware.Downware.3938
ESET-NOD32a variant of Win32/FirseriaInstaller.H, a variant of Win32/FirseriaInstaller.F
GDataApplication.Downloader.SK, Win32.Application.Morstar.B, Application.Bundler.Firseria.B
K7AntiVirusTrojan ( 00497d9d1 )
K7GWTrojan ( 00497d9d1 )
MalwarebytesPUP.Optional.BundleInstall, PUP.Optional.AppsInstaller
MicroWorld-eScanApplication.Downloader.SK, Gen:Variant.Graftor.136733, Application.Bundler.Firseria.B
SophosSolimba Installer
VIPRETrojan.Win32.Generic!BT, DownloadMR (fs)

* How the Detection Percentage is Calculated

The detection percentage is based on that I have collected 155 scan results for the Apps Installer SL files. 53 of these scan results came up with some sort of detection. If you like, you can view the full details of the scan reports by examining the files listed above.

Analysis Details

The analysis has been done on certificates with the following serial numbers:


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