ESSENTWARE S.A. - 4% Detection Rate *

Did you just find a download or a file on your computer that has a digital signature from ESSENTWARE S.A.? Some of the security products refers to the detected files as PUP.Optional.PCKeeper and Program.Unwanted.1303. The detection rate for the ESSENTWARE S.A. files collected here is 4%. Please read on for more details.

You'll probably notice ESSENTWARE S.A. when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where ESSENTWARE S.A. appears as the verified publisher in the UAC dialog

You can view the digital signature details for ESSENTWARE S.A. with the following procedure:

  1. Open up Windows Explorer and locate the ESSENTWARE S.A. file
  2. Right-click on the file and select Properties
  3. Click the Digital Signatures tab
  4. Click on the View Certificate button

Here is a screenshot of a file digitally signed by ESSENTWARE S.A.:

Screenshot of the ESSENTWARE S.A. certificate

As you can see in the screenshot above, the Windows OS reports that "This digital signature is OK". This implies that the file has been published by ESSENTWARE S.A. and that the file has not been tampered with.

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 view the address for ESSENTWARE S.A., 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 ESSENTWARE S.A. certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.

ESSENTWARE S.A. Files

These are the ESSENTWARE S.A. files I've gathered, thanks to the FreeFixer users.

Detection RatioFile Name
1/58AccountService.exe
1/55AccountService.exe
1/57PCKeeper.exe
1/56pckavservice.exe
1/54AccountService.exe
3/54PCKeeper Installer.exe
10/56installer.exe
2/57accountservice.exe
8/56PCKeeper Installer.exe
2/55oneclickfixservice.exe
1/61PCKAVService.exe
2/68CrashReportSender.exe
0/57PCKeeperShellExt64.dll

Scanner and Detection Names

Here is the detection names for the ESSENTWARE S.A. files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

ScannerDetection Names
AgnitumPUA.PCKeeper!
BaiduWin32.Adware.PCKeeper.a
CyrenW32/S-98952905!Eldorado
DrWebProgram.Unwanted.1303, Program.Unwanted.936, Program.Unwanted.93, Program.Unwanted.1427, Program.Unwanted.806, Program.Unwanted.1174, Program.Unwanted.1419
ESET-NOD32a variant of Win32/Adware.PCKeeper.A
F-ProtW32/S-98952905!Eldorado
GDataWin32.Application.PCKeeper.A
IkarusPUA.Packed.eper
K7AntiVirusAdware ( 004d36171 )
K7GWAdware ( 004d36171 )
MalwarebytesPUP.Optional.PCKeeper
Qihoo-360HEUR/QVM10.1.0000.Malware.Gen
RisingPE:Malware.Generic(Thunder)!1.A1C4 [F]
ZillyaAdware.Imali.Win32.185, Adware.BrowseFoxGen.Win32.17

* How the Detection Percentage is Calculated

The detection percentage is based on the fact that I've collected 744 scan results for the ESSENTWARE S.A. files. 33 of these scan reports came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.

Analysis Details

The analysis is done on certificates with the following serial numbers:

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