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:
You can view the additional details from the WebSys, s.r.o. digital signature with the following procedure:
Here's a screenshot of a file that has been digitally signed by WebSys, s.r.o.:
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.
The following are the WebSys, s.r.o. files I've gathered, thanks to the FreeFixer users.
Detection Ratio | File Name |
---|---|
11/57 | Windows 8 Themes .exe |
9/50 | Windows8Downloads_Downloader_v3.0.7.19200_792_stub.exe |
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.
Scanner | Detection Names |
---|---|
AVG | InstallC.D8B |
AVware | Trojan.Win32.Generic!BT |
Avira | ADWARE/InstallCore.Gen4 |
Baidu-International | Adware.Win32.InstallCore.bUQ |
Comodo | Application.Win32.InstallCore.DL, UnclassifiedMalware |
DrWeb | Trojan.MulDrop5.10078 |
ESET-NOD32 | a variant of Win32/InstallCore.UQ, a variant of Win32/Kryptik.BWAM |
K7AntiVirus | Unwanted-Program ( 00495cd51 ) |
K7GW | Unwanted-Program ( 00495cd51 ) |
Malwarebytes | PUP.Optional.InstallCore |
McAfee | Artemis!E8D69B0049EB |
McAfee-GW-Edition | Artemis!E8D69B0049EB |
NANO-Antivirus | Riskware.Win32.InstallCore.dimzdo |
Qihoo-360 | Win32/Trojan.1df |
Sophos | Install Core Click run software |
VBA32 | Downware.InstallCore |
VIPRE | Trojan.Win32.Generic!BT |
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.
The analysis is based on certificates with the following serial numbers: