WebSys, s.r.o. - 19% Detection Rate *

Did you just stumble upon a download or a file on your computer that is digitally signed by WebSys, s.r.o.? Some of the security products refers to the detected files as Unwanted-Program ( 00495cd51 ) and Artemis!E8D69B0049EB. The detection rate for the WebSys, s.r.o. files collected here is 19%. Please read on for more details.

You will probably notice WebSys, s.r.o. 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 WebSys, s.r.o. appears as the verified publisher in the UAC dialog

You can view the additional details from the WebSys, s.r.o. digital signature with the following procedure:

  1. Open Windows Explorer and locate the WebSys, s.r.o. 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 screenshot of a file that has been digitally signed by WebSys, s.r.o.:

Screenshot of the WebSys, s.r.o. certificate

As you can see in the screencap above, Windows reports that "This digital signature is OK". This implies that the file has been published by WebSys, s.r.o. and that no one has tampered with the file.

If you click the View Certificate button shown in the screenshot above, you can examine 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 WebSys, s.r.o., such as the street name, city and country.

COMODO Code Signing CA 2 has issued the WebSys, s.r.o. certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.

WebSys, s.r.o. Files

The following are the WebSys, s.r.o. files I've gathered, thanks to the FreeFixer users.

Detection RatioFile Name
11/57Windows 8 Themes .exe
9/50Windows8Downloads_Downloader_v3.0.7.19200_792_stub.exe

Scanner and Detection Names

Here is the detection names for the WebSys, s.r.o. files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

ScannerDetection Names
AVGInstallC.D8B
AVwareTrojan.Win32.Generic!BT
AviraADWARE/InstallCore.Gen4
Baidu-InternationalAdware.Win32.InstallCore.bUQ
ComodoApplication.Win32.InstallCore.DL, UnclassifiedMalware
DrWebTrojan.MulDrop5.10078
ESET-NOD32a variant of Win32/InstallCore.UQ, a variant of Win32/Kryptik.BWAM
K7AntiVirusUnwanted-Program ( 00495cd51 )
K7GWUnwanted-Program ( 00495cd51 )
MalwarebytesPUP.Optional.InstallCore
McAfeeArtemis!E8D69B0049EB
McAfee-GW-EditionArtemis!E8D69B0049EB
NANO-AntivirusRiskware.Win32.InstallCore.dimzdo
Qihoo-360Win32/Trojan.1df
SophosInstall Core Click run software
VBA32Downware.InstallCore
VIPRETrojan.Win32.Generic!BT

* How the Detection Percentage is Calculated

The detection percentage is based on that I've gathered 107 scan results for the WebSys, s.r.o. files. 20 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 based on certificates with the following serial numbers:

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