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Microsoft Windows Defender Setup.exe

Microsoft Windows Defender

Install Helper

This is the Vittalia Filewon Installer which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application Microsoft Windows Defender Setup.exe by Install Helper has been detected as adware by 19 anti-malware scanners. The program is a setup application that uses the Vittalia DM installer. This program installs potentially unwanted software on your PC at the same time as the software you are trying to install, without adequate consent.
Publisher:
Install Helper  (signed and verified)

Product:
Microsoft Windows Defender

Version:
3.0.0.104

MD5:
c9934d98f17b0728dd8d14aa81de30e3

SHA-1:
4dc549e2ca660e260122ef250ef9540e5977ab44

SHA-256:
fc0a1876df1cbef551036a3f6a482b4806156b1a3c90232424aaa90755cd740e

Scanner detections:
19 / 68

Status:
Adware

Explanation:
Bundles additional software, mostly toolbars and other potentially unwanted applications using the Vittalia monitization installer.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
6/23/2025 9:34:19 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.AirInstaller.5
5726743

AhnLab V3 Security
PUP/Win32.Bundler
2015.06.09

Avira AntiVirus
TR/Crypt.XPACK.Gen
8.3.1.6

Arcabit
Trojan.Application.Bundler.AirInstaller.5
1.0.0.425

AVG
Generic
2016.0.3084

Bitdefender
Gen:Variant.Application.Bundler.AirInstaller.5
1.0.20.800

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.DownloadAssistant.S
22388

Dr.Web
Trojan.Vittalia.76
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.AirInstaller
10.0.0.5366

ESET NOD32
Win32/DownloadAssistant.A potentially unwanted application
7.0.302.0

F-Secure
Riskware.Gen:Variant.Application.Bundler
5.14.151

G Data
Gen:Variant.Application.Bundler.AirInstaller
15.6.25

MicroWorld eScan
Gen:Variant.Application.Bundler.AirInstaller.5
16.0.0.480

NANO AntiVirus
Trojan.Win32.Vittalia.dqfrig
0.30.24.1636

Norman
Gen:Variant.Application.Bundler.AirInstaller.5
02.06.2015 14:23:46

Reason Heuristics
PUP.Vittalia.Bundler
15.6.9.5

Rising Antivirus
PE:Malware.XPACK-HIE/Heur!1.9C48
23.00.65.15607

VIPRE Antivirus
Threat.4782985
40830

File size:
999.6 KB (1,023,624 bytes)

Product version:
3.0.0.104

Copyright:
(c) Install Helper

Original file name:
Microsoft Windows Defender Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Vittalia DM

Language:
English (United States)

Common path:
C:\users\{user}\downloads\microsoft windows defender setup.exe

Digital Signature
Signed by:
Install Helper

Authority:
Symantec Corporation

Valid from:
5/19/2015 5:00:00 PM

Valid to:
5/19/2016 4:59:59 PM

Subject:
CN=Install Helper, O=Install Helper, L=Vancouver, S=British Columbia, C=CA

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
0575634D1B3373331074EB7C4751AB12

File PE Metadata
Compilation timestamp:
6/3/2015 3:17:04 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:V8+Ea+VU60FnuHGHaisej7a/d2klvlqzFiLNCqY:O+E/VUtnwiLj7Q2MIzV3

Entry address:
0x126A

Entry point:
55, 8B, EC, 83, EC, 10, 53, 56, 57, 6A, 00, FF, 15, 08, 10, 49, 00, 8B, F8, 33, D2, 8B, CF, 8B, 5F, 3C, 03, DF, 2B, 05, 1C, 10, 40, 00, 89, 45, F4, 1B, D2, F7, D8, 89, 55, F8, 0F, B7, 73, 14, 83, D2, 00, F7, DA, 89, 75, F0, 52, 8B, 93, A0, 00, 00, 00, 50, 8B, 44, 1E, 24, 03, 05, 28, 10, 40, 00, 50, FF, B3, A4, 00, 00, 00, E8, 88, FD, FF, FF, 8B, 54, 1E, 28, 83, C4, 10, A1, 28, 10, 40, 00, 2B, D0, 83, FA, 01, 76, 0D, 8B, 4C, 1E, 24, 03, C8, 03, CF, E8, F2, FE, FF, FF, A1, 20, 10, 40, 00, 83, C6, 40, 03, F3...
 
[+]

Entropy:
6.9945

Developed / compiled with:
Microsoft Visual C++

Code size:
574 KB (587,776 bytes)

The file Microsoft Windows Defender Setup.exe has been seen being distributed by the following URL.

http://software.softkea.com/v2/click/ligiz166/?d=http://cdn.downtoad.com/1downloadfiles/microsoftwindowsdefender.exe&n=Microsoft Windows Defender&icon=http://www.downtoad.com/inventory/microsoftwindowsdefender/.../aidesktop.ico&key=564c73f6e3e6481af352edc085dede259b19136702f4b2486ed62a874bd88848&affiliate_image=http://www.downtoad.com/inventory/microsoftwindowsdefender/.../installicon.png&product_image=http://www.downtoad.com/inventory/microsoftwindowsdefender/.../installsplash.png&filename=Microsoft Windows Defender Setup&sid=Bing2-USA-MicrosoftWindowsDefender-

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