QuestDns.com - 57% Detection Rate *

Did you just stumble upon a download or a file on your computer that has been digitally signed by QuestDns.com? Some of the security products refers to the detected files as Gen:Variant.Adware.Zwangi.2 and W32/Zwangi.E.gen!Eldorado. The detection rate for the QuestDns.com files collected here is 57%. Please read on for more details.

You will probably notice QuestDns.com when double-clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where QuestDns.com appears as the verified publisher in the UAC dialog

You can view the additional details from the QuestDns.com digital signature with the following procedure:

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

Here is a screenshot of a file that has been signed by QuestDns.com:

Screenshot of the QuestDns.com certificate

As you can see in the screenshot above, Windows states that "This digital signature is OK". This implies that the file has been published by QuestDns.com and that the file has not been tampered with.

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, and so on. You can also examine the address for QuestDns.com, such as the street name, city and country.

UTN-USERFirst-Object has issued the QuestDns.com certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screengrab above.

QuestDns.com Files

The following are the QuestDns.com files I have gathered, thanks to the FreeFixer users.

Detection RatioFile Name
24/42questdns.exe

Scanner and Detection Names

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

ScannerDetection Names
AVGAdSearcher.A
AntiVirADSPY/AdSpy.Gen2
Avast5Win32:Zwangi-J
BitDefenderGen:Variant.Adware.Zwangi.2
CommtouchW32/Zwangi.E.gen!Eldorado
F-ProtW32/Zwangi.E.gen!Eldorado
FortinetAdware/OneStep
GDataGen:Variant.Adware.Zwangi.2
Ikarusnot-a-virus:Adware.Zwangi
K7AntiVirusAdware
McAfeeAdware-OneStep.f
McAfee-GW-EditionHeuristic.BehavesLike.Win32.Adware.H
MicrosoftBrowserModifier:Win32/Zwangi
NOD32a variant of Win32/Adware.OneStep.L
NormanW32/Suspicious_Gen2.EYMJU
PCToolsAdware.Zwunzi
PandaGeneric Malware
PrevxHigh Risk Cloaked Malware
SophosZwangi
SymantecHeuristic.ADH
VIPRETrojan.Win32.Generic!BT
VirusBusterAdware.Zwangi.Gen.6
eSafeWin32.BrowserModifie
nProtectGen:Variant.Adware.Zwangi.2

* How the Detection Percentage is Calculated

The detection percentage is based on the fact that I've collected 42 scan results for the QuestDns.com files. 24 of these scan results 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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