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. The installer is marketed through download protals and search ads as the free Mozilla Firefox web browser but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Download Assistant  (signed and verified)

Product:
Mozilla Firefox

Version:
3.0.0.88

MD5:
38b428c96395e50b0858d2f2d111d214

SHA-1:
8d68ad3b0727888954eab709ce990d5c0ed87c73

SHA-256:
68808ab5c41a664251f8168ac4ed777d341cfdbcd1c2a94a3bd2243e4c2eed91

Scanner detections:
20 / 68

Status:
Adware

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

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
10/31/2024 10:57:46 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.AirInstaller.5
418

AhnLab V3 Security
PUP/Win32.Bundler
2015.03.25

avast!
Win32:Adware-CKC [PUP]
2014.9-151213

AVG
Potentially harmful program DownloadAssistant.A
2016.0.2896

Bitdefender
Gen:Variant.Application.Bundler.AirInstaller.5
1.0.20.1735

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.DownloadAssistant.S
21661

Dr.Web
Trojan.Vittalia.30
9.0.1.0347

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.AirInstaller
8.15.12.13.11

ESET NOD32
Win32/DownloadAssistant.A potentially unwanted application
9.7.0.302.0

F-Secure
Riskware.Gen:Variant.Application.Bundler
11.2015-13-12_1

G Data
Gen:Variant.Application.Bundler.AirInstaller
15.12.25

K7 AntiVirus
Unwanted-Program
13.204.16056

Malwarebytes
PUP.Optional.BundleInstaller.A
v2015.12.13.11

MicroWorld eScan
Gen:Variant.Application.Bundler.AirInstaller.5
16.0.0.1041

NANO AntiVirus
Trojan.Win32.DownloadHelper.dpgylc
0.30.8.659

Panda Antivirus
Trj/Genetic.gen
15.12.13.11

Reason Heuristics
PUP.Air Software.DownloadAssistant.Bundler (M)
15.12.13.23

Rising Antivirus
PE:Malware.XPACK-HIE/Heur!1.9C48
23.00.65.151211

VIPRE Antivirus
Threat.4782985
38552

File size:
845.2 KB (865,456 bytes)

Product version:
3.0.0.88

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
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:
3/22/2015 10:06:44 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:+SxtPpytk4ezoa/p6QC3QEJLYs0V6/y5BDpCJ83bh:zTytrezTx6/JuFDw83bh

Entry address:
0x126A

Entry point:
55, 8B, EC, 83, EC, 10, 53, 56, 57, 6A, 00, FF, 15, 08, 90, 47, 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:
7.0587

Developed / compiled with:
Microsoft Visual C++

Code size:
478.5 KB (489,984 bytes)

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

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