Denco Limited - 2% Detection Rate *

Did you just stumble upon a download or a file on your computer that has a digital signature from Denco Limited? If so, please read on.

You'll typically see Denco Limited 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 Denco Limited appears as the verified publisher in the UAC dialog

You can view the additional details from the Denco Limited digital signature with the following procedure:

  1. Open Windows Explorer and locate the Denco Limited 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 screencap of a file signed by Denco Limited:

Screenshot of the Denco Limited certificate

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This implies that the file has been published by Denco Limited 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 see the address for Denco Limited, such as the street name, city and country.

VeriSign Class 3 Code Signing 2010 CA has issued the Denco Limited certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.

Denco Limited Files

The following are the Denco Limited files I have collected, thanks to the FreeFixer users.

Detection RatioFile Name
1/51ConvertFilesforFree_x64.dll
1/45FASTFR~1.DLL
2/48ya3iz0l0.ppz.exe
1/54ChromeHelperUpdt.exe
1/51ConvertFilesforFree_x64.dll
1/49FastFreeConverter_x64.dll
8/49setup.exe
0/48ConvertFilesforFree.dll
0/50ConvertFilesforFree_x64.dll
0/51FreeFLVConverter_x64.dll
0/44ConvertFilesforFree_x64.dll
0/51FreeFLVConverter.dll

Scanner and Detection Names

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

ScannerDetection Names
AVGDencol
AegisLabTroj.W32.Jorik.Loadwar
Antiy-AVLGrayWare[AdWare:not-a-virus]/Win32.Skyli
MalwarebytesPUP.Optional.FreeFileConverter.A, PUP.Optional.FastFreeConverter.A
McAfeeArtemis!5ED65CE340AD
McAfee-GW-EditionArtemis!5ED65CE340AD
NANO-AntivirusTrojan.Win32.Generic.dbxktu
VBA32suspected of Trojan.Downloader.gen.h
VIPREMontiera (fs)

* How the Detection Percentage is Calculated

The detection percentage is based on the fact that I've collected 692 scan reports for the Denco Limited files. 15 of these scan results came up with some sort of detection. You can view the full details of the scan results by examining the files listed above.

Analysis Details

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

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