eCHANG Net Inc. - 14% Detection Rate *

Did you just run into a download or a file on your computer that has been digitally signed by eCHANG Net Inc.? Some of the security products refers to the detected files as Unwanted-Program ( 0040f9591 ) and InstallCore (fs). The detection rate for the eCHANG Net Inc. files collected here is 14%. Please read on for more details.

You'll probably see eCHANG Net Inc. when clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where eCHANG Net Inc. appears as the verified publisher in the UAC dialog

You can view additional details from the eCHANG Net Inc. certificate with the following procedure:

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

Here's a screengrab of a file signed by eCHANG Net Inc.:

Screenshot of the eCHANG Net Inc. certificate

As you can see in the screencap above, the Windows OS reports that "This digital signature is OK". This means that the file has been published by eCHANG Net Inc. 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 see the address for eCHANG Net Inc., such as the street name, city and country.

Thawte Code Signing CA - G2 and GlobalSign CodeSigning CA - G2 has issued the eCHANG Net Inc. certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screengrab above.

eCHANG Net Inc. Files

The following are the eCHANG Net Inc. files I have collected, thanks to the FreeFixer users.

Detection RatioFile Name
8/57CR_Downloader_for_zsnes.exe
8/56CR_Downloader_for_visual-boy-advance.exe

Scanner and Detection Names

Here is the detection names for the eCHANG Net Inc. files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

ScannerDetection Names
AVGGeneric.487, InstallCore.1B9
AVwareInstallCore (fs)
AgnitumPUA.InstallCore!
AviraAdware/InstallCo.rui, Adware/InstallCore.A.222
ComodoApplication.Win32.InstallCore.DWA
DrWebTrojan.Packed.30195
ESET-NOD32a variant of Win32/InstallCore.XC potentially unwanted
GDataWin32.Application.InstallCore.CR
K7AntiVirusUnwanted-Program ( 0040f9591 ), Trojan ( 004b6d731 )
K7GWUnwanted-Program ( 0040f9591 ), Trojan ( 004b6d731 )
SophosInstall Core Click run software
VIPREInstallCore (fs)

* How the Detection Percentage is Calculated

The detection percentage is based on that I have collected 113 scan results for the eCHANG Net Inc. files. 16 of these scan reports 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 is based on certificates with the following serial numbers:

Comments

TRUE-LM writes

0 thumbs

I'm very computer illiterate, but reading this article I understand that most AV detections (I'm using McAfee) clasify this as suspicious, sometimes outright a trojan. But I do not understand the reason for this and am unsure if taking the risk is worthwhile.

# 11 Aug 2019, 11:28

Roger Karlsson writes

0 thumbs

@TRUE-LM: Based on the scan result from VirusTotal, it looks like the software comes from "InstallCore". InstallCore is known to bundle additional software in the installer. Sometimes they bundle useful stuff, but most often they bundle software that you don't want on your machine.

# 20 Aug 2019, 3:10

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