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firefox_install.exe

Mozilla 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 firefox_install.exe by Download Assistant has been detected as adware by 20 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:
Download Assistant  (signed and verified)

Product:
Mozilla Firefox

Version:
3.0.0.91

MD5:
eab9c93109e1f050540dca883f57eff3

SHA-1:
aacaf21d30389e6741ae72df599c9b636e9af09b

SHA-256:
39a87bab2a96867d1f3abadebf35deab09cc69eb8ea1d6c3e351c1e914a948bb

Scanner detections:
20 / 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:
10/31/2024 11:01:37 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.AirInstaller.5
527

AhnLab V3 Security
PUP/Win32.Bundler
2015.03.25

avast!
Win32:Adware-CKC [PUP]
2014.9-150826

AVG
Potentially harmful program DownloadAssistant.A
2016.0.3005

Bitdefender
Gen:Variant.Application.Bundler.AirInstaller.5
1.0.20.1190

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.DownloadAssistant.S
21661

Dr.Web
Trojan.Vittalia.30
9.0.1.0238

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.AirInstaller
8.15.08.26.02

ESET NOD32
Win32/DownloadAssistant.A potentially unwanted application
9.7.0.302.0

F-Secure
Riskware.Gen:Variant.Application.Bundler
11.2015-26-08_4

G Data
Gen:Variant.Application.Bundler.AirInstaller
15.8.25

K7 AntiVirus
Unwanted-Program
13.204.16056

Malwarebytes
PUP.Optional.BundleInstaller.A
v2015.08.26.02

MicroWorld eScan
Gen:Variant.Application.Bundler.AirInstaller.5
16.0.0.714

NANO AntiVirus
Trojan.Win32.DownloadHelper.dpgylc
0.30.8.659

Panda Antivirus
Trj/Genetic.gen
15.08.26.02

Reason Heuristics
PUP.Air Software.DownloadAssistant.Bundler (M)
15.8.26.14

Rising Antivirus
PE:Malware.XPACK-HIE/Heur!1.9C48
23.00.65.15824

VIPRE Antivirus
Threat.4782985
38552

File size:
958.2 KB (981,168 bytes)

Product version:
3.0.0.91

Copyright:
(c) Download Assistant

Original file name:
firefox_install.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

Common path:
C:\users\{user}\downloads\firefox_install.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
2/15/2015 7:00:00 PM

Valid to:
2/16/2016 6:59:59 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:
4/10/2015 4:07:03 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:4Bi6fHRk7AXsBGTJNTtWF675A+YazCFPQ6eijN:aiIHRk7AcBYJNTtWF675XYmCBpeijN

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:
7.0423

Developed / compiled with:
Microsoft Visual C++

Code size:
574.5 KB (588,288 bytes)

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

http://dl.browser-download.info/

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