Gekkon Ltd - 21% Detection Rate *

Did you just stumble upon a download or a file on your computer that has been digitally signed by Gekkon Ltd? Some of the security products refers to the detected files as Unwanted-Program ( 00495cd61 ) and PUA.InstallCore!. The detection rate for the Gekkon Ltd files collected here is 21%. Please read on for more details.

You will probably see Gekkon Ltd when double-clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screengrab shows:

Screenshot where Gekkon Ltd appears as the verified publisher in the UAC dialog

You can also view the Gekkon Ltd certificate with the following steps:

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

Here is a screenshot of a file that has been signed by Gekkon Ltd:

Screenshot of the Gekkon Ltd certificate

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by Gekkon Ltd and that no one has tampered with the file.

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, etc. You can also examine the address for Gekkon Ltd, such as the street name, city and country.

GlobalSign CodeSigning CA - G2 has issued the Gekkon Ltd certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.

Gekkon Ltd Files

The following are the Gekkon Ltd files I have collected, thanks to the FreeFixer users.

Detection RatioFile Name
11/52Nfssummergarden.exe

Scanner and Detection Names

Here's the detection names for the Gekkon Ltd files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

ScannerDetection Names
AgnitumPUA.InstallCore!
Antiy-AVLTrojan/Win32.SGeneric
AvastWin32:Malware-gen
ComodoApplication.Win32.InstallCore.BWAN
DrWebTrojan.Packed.24524
ESET-NOD32a variant of Win32/Injected.F
K7AntiVirusUnwanted-Program ( 00495cd61 )
K7GWUnwanted-Program ( 00495cd61 )
MalwarebytesPUP.Optional.InstallCore.A
VBA32Downware.InstallCore
VIPREInstallCore.b (fs)

* How the Detection Percentage is Calculated

The detection percentage is based on that I've collected 52 scan results for the Gekkon Ltd files. 11 of these scan results came up with some sort of detection. If you like, you can review 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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