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FirefoxSetup.exe

Firefox

Download Assistant

This is part of the Air Installer, a download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application FirefoxSetup.exe by Download Assistant has been detected as adware by 22 anti-malware scanners. The program is a setup application that uses the AirInstaller Download Manager installer. During install, it bundles potentially unwanted software on a user's computer at the same time without adequate consent. With this installer, users are expecting to download the free Mozilla Firefox web browser but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
DownloadAsst_New  (signed by Download Assistant)

Product:
Firefox

Version:
3.0.0.109

MD5:
ceaf5be0b849710da24c0660a680bf2e

SHA-1:
2e22dc0bd8b4e6ad5a5dece6a7c59b1c5818ea9f

SHA-256:
090baa52c386ca3c6c47aea89e22de4769f68696ea578e554799d721a2936311

Scanner detections:
22 / 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:
11/30/2024 3:44:16 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.AirInstaller.5
371

AhnLab V3 Security
PUP/Win32.DownloadAssistant
2015.04.24

avast!
Win32:Adware-CKC [PUP]
2014.9-160129

AVG
Generic
2017.0.2849

Bitdefender
Gen:Variant.Application.Bundler.AirInstaller.5
1.0.20.145

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.DownloadAssistant.S
21693

Dr.Web
Trojan.Vittalia.30
9.0.1.029

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.AirInstaller
8.16.01.29.05

ESET NOD32
Win32/DownloadAssistant.A potentially unwanted application
10.7.0.302.0

F-Secure
Riskware.Gen:Variant.Application.Bundler
11.2016-29-01_6

G Data
Gen:Variant.Application.Bundler.AirInstaller
16.1.25

IKARUS anti.virus
PUA.DownloadAssistant
t3scan.1.8.9.0

K7 AntiVirus
Unwanted-Program
13.204.16003

Malwarebytes
PUP.Optional.BundleInstaller.A
v2016.01.29.05

MicroWorld eScan
Gen:Variant.Application.Bundler.AirInstaller.5
17.0.0.87

NANO AntiVirus
Trojan.Win32.Vittalia.dqfrig
0.30.16.1110

Norman
Gen:Variant.Application.Bundler.AirInstaller.5
11.20160129

Panda Antivirus
Trj/Genetic.gen
16.01.29.05

Reason Heuristics
PUP.Air Software.DownloadAssistant.Bundler (M)
16.1.29.17

Rising Antivirus
PE:Malware.XPACK-HIE/Heur!1.9C48
23.00.65.16127

VIPRE Antivirus
Threat.4782985
38882

File size:
964.3 KB (987,456 bytes)

Product version:
3.0.0.109

Copyright:
(c) DownloadAsst_New

Original file name:
FirefoxSetup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\firefoxsetup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
2/15/2015 6:00:00 PM

Valid to:
2/16/2016 5:59:59 PM

Subject:
CN=Download Assistant, O=Download Assistant, L=Victoria, 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:
3784E4CAC60231ED82FD7E8E845E8CE3

File PE Metadata
Compilation timestamp:
7/16/2015 11:29:12 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:bdSSyCoVT2L2bGM7jLKVkfETk1m8lLkAzNYFqoLps70DKs:fyCn2S2+kfe3K/zNyLmyKs

Entry address:
0x1288

Entry point:
55, 8B, EC, 83, EC, 14, 53, 56, 57, 6A, 00, FF, 15, 08, 20, 49, 00, 8B, F8, 33, D2, 8B, CF, 8B, 5F, 3C, 03, DF, 89, 5D, FC, 0F, B7, 73, 14, 83, C6, 18, 03, F3, 2B, 05, 1C, 10, 40, 00, 89, 45, F0, 1B, D2, 89, 75, EC, F7, D8, 89, 55, F4, 83, D2, 00, F7, DA, 52, 8B, 93, A0, 00, 00, 00, 50, 8B, 46, 0C, 03, 05, 28, 10, 40, 00, 50, FF, B3, A4, 00, 00, 00, E8, C6, FD, FF, FF, 56, FF, 35, 28, 10, 40, 00, 8B, CF, E8, 42, FF, FF, FF, A1, 20, 10, 40, 00, 83, C4, 18, 83, C6, 28, 83, F8, 01, 76, 18, 56, FF, 35, 2C, 10...
 
[+]

Entropy:
7.0479

Developed / compiled with:
Microsoft Visual C++

Code size:
577 KB (590,848 bytes)

The file FirefoxSetup.exe has been seen being distributed by the following URL.

http://dl.everydownload1.com/v2/click/pn8b7cor/?d=http://software.downloadtree.net/firefox.exe&sid=Firefox-US&uid=4424237&key=cd0715e03d96ce64faf15b8f68d3ae1a406cfd05a90d6cfe6023fa1af373f622&affiliate_image=&product_image=https://s3.amazonaws.com/evdlimages/.../firefox-product.jpg&n=Firefox&filename=FirefoxSetup

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