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firefox_setup.exe

DownloadManager.exe

Optimum Installer

This adware bundler is distributed through Adknowledge's advertising supported software managers. The application firefox_setup.exe, “Firefox Setup ” by Optimum Installer has been detected as adware by 35 anti-malware scanners. The program is a setup application that uses the Adknowledge Fusion installer. 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:
ADK Apps  (signed by Optimum Installer)

Product:
DownloadManager.exe

Description:
Firefox Setup

Version:
2.1.10

MD5:
d9f6fa45eb6916e4bdcd43ff9924f068

SHA-1:
1732c44d9d53123229a7c682f1d602f54ad48424

SHA-256:
23e7232ac7a8e5ab119dbecc10f67f40191b73622f1aad116590cf63a73aa174

Scanner detections:
35 / 68

Status:
Adware

Explanation:
This installer bundles various adware prorgams that may include toolbars and web browser advertising injectors/extensions.

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:
12/25/2024 12:55:45 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Graftor.Elzob.24634
363

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.IBryte
16.02.06

Avira AntiVirus
Adware/iBryte.JH.2
7.11.150.50

avast!
Win32:Installer-J [PUP]
2014.9-160206

AVG
Adware Skodna.Generic
2017.0.2841

Baidu Antivirus
Adware.Win32.iBryte
4.0.3.1626

Bitdefender
Gen:Variant.Adware.Graftor.Elzob.24634
1.0.20.185

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Ibryte-82
0.98/18155

Comodo Security
ApplicUnwnt.Win32.AdWare.iBryte.H
18286

Dr.Web
Adware.Downware.803
9.0.1.037

Emsisoft Anti-Malware
Gen:Variant.Adware.Graftor.Elzob.24634
8.16.02.06.03

ESET NOD32
Win32/Adware.iBryte.D application
10.7.0.302.0

Fortinet FortiGate
Riskware/IBryte
2/6/2016

F-Prot
W32/Ibryte.C.gen
v6.4.6.5.141

F-Secure
Gen:Variant.Adware.Graftor.Elzob.24634
11.2016-06-02_7

G Data
Win32.Adware.OptimumInst
16.2.24

IKARUS anti.virus
Win32.SuspectCrc
t3scan.2.2.29

K7 AntiVirus
Backdoor
13.177.12109

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.702

Malwarebytes
PUP.Optional.IBryte
v2016.02.06.03

McAfee
Program.Adware-FOO
5600.6497

MicroWorld eScan
Gen:Variant.Adware.Graftor.Elzob.24634
17.0.0.111

NANO AntiVirus
Riskware.Win32.Agent.csoeby
0.28.0.60577

nProtect
Trojan/W32.Agent.687400
14.07.02.01

Qihoo 360 Security
Malware.QVM10.Gen
1.0.0.1015

Quick Heal
Adware.iBryte.CK4
2.16.14.00

Reason Heuristics
PUP.Adknowledge.OptimumInstaller.Installer (M)
16.2.6.15

Rising Antivirus
PE:Malware.Agent!6.401
23.00.65.16204

Sophos
PUA 'iBryte Optimum Installer'
5.12

Trend Micro House Call
HV_OPTIMUM_CG090002.RDXN
7.2.37

Vba32 AntiVirus
AdWare.iBryte
3.12.26.0

VIPRE Antivirus
Optimum Installer
29298

Zillya! Antivirus
Adware.iBryte.Win32.448
2.0.0.1790

File size:
671.3 KB (687,400 bytes)

Product version:
2.1.10

Original file name:
Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

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

Digital Signature
Signed by:
Optimum Installer

Authority:
VeriSign, Inc.

Valid from:
10/10/2012 8:00:00 PM

Valid to:
11/7/2013 6:59:59 PM

Subject:
CN=Optimum Installer, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Optimum Installer, L=Kansas City, S=Missouri, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
7C5F27B776ADBBB7943F700066A490BF

File PE Metadata
Compilation timestamp:
12/20/2012 4:58:29 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:5e7juwDzvwnnjuWMAVwJwoQoS+lG7W5+gWE2qhdYxgddxFFipVqS5LJpbb5qQPpf:5elDz6njuWRw2joS+U4p3h2xudxFFi6E

Entry address:
0x4CD70

Entry point:
E8, 55, D5, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 6A, 00, FF, 75, 14, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, CE, D5, 00, 00, 83, C4, 14, 5D, C3, FF, 35, 14, 93, 49, 00, E8, 0B, 39, 00, 00, 59, 85, C0, 74, 02, FF, D0, 6A, 19, E8, 38, 91, 00, 00, 6A, 01, 6A, 00, E8, CD, D8, 00, 00, 83, C4, 0C, E9, AE, D7, 00, 00, 8B, FF, 55, 8B, EC, 8B, 55, 08, 53, 56, 57, 33, FF, 3B, D7, 74, 07, 8B, 5D, 0C, 3B, DF, 77, 1E, E8, A0, 03, 00, 00, 6A, 16, 5E, 89, 30, 57, 57, 57, 57, 57, E8, 54, AF, FF, FF, 83, C4, 14...
 
[+]

Entropy:
6.4175

Code size:
426 KB (436,224 bytes)

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

http://install.ez-download.com/o/.../Firefox_setup.exe

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