firefox_install.exe

Mozilla Firefox 2015

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 18 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 2015

Version:
3.0.0.102

MD5:
e4fe4738475ff0907d325593627e93cf

SHA-1:
3808654c2db3a0c1b7bcf12f21866be66a3a9343

SHA-256:
75a2b85b140d2710584abe3dd568caf0ea98e02dbac1604c7f343b41600b16c8

Scanner detections:
18 / 68

Status:
Adware

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

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
11/15/2024 10:51:01 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.AirInstaller.5
5582599

Avira AntiVirus
TR/Crypt.XPACK.Gen
8.3.1.6

avast!
Win32:Adware-CKC [PUP]
150319-1

Bitdefender
Gen:Variant.Application.Bundler.AirInstaller.5
1.0.20.680

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.DownloadAssistant.S
22142

Dr.Web
Trojan.Vittalia.30
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
5.13.68

G Data
Gen:Variant.Application.Bundler.AirInstaller
15.5.25

Malwarebytes
PUP.Optional.BundleInstaller.A
v2015.05.16.10

MicroWorld eScan
Gen:Variant.Application.Bundler.AirInstaller.5
16.0.0.408

NANO AntiVirus
Trojan.Win32.Vittalia.dqfrig
0.30.24.1357

Panda Antivirus
Trj/Genetic.gen
15.05.16.10

Reason Heuristics
Threat.Air Software.Bundler
15.5.16.17

Rising Antivirus
PE:Malware.XPACK-HIE/Heur!1.9C48
23.00.65.15514

VIPRE Antivirus
Threat.4782985
39676

File size:
960.7 KB (983,736 bytes)

Product version:
3.0.0.102

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:
2/16/2015 1:00:00 AM

Valid to:
2/17/2016 12:59:59 AM

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:
5/16/2015 5:29:09 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:ZyRJd6nKMwQyRPRXW4X/890s3oVO7yZ2pRKY:ouZwQO5XujGZ2pRKY

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...
 
[+]

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.

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