home

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 28 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:
2.1.13

MD5:
55634cb10f0d28326a5e79b06deacd51

SHA-1:
dfafb783e6e447dc38bbaa1a829cc3895c7c477b

SHA-256:
971e8f9fe81172d9f306b9059bba0972e4650bd33eb9a83ad9a38a3e39c3ded5

Scanner detections:
28 / 68

Status:
Adware

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

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:
1/12/2025 5:25:51 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.IBryte
14.06.10

Avira AntiVirus
Adware/IBryte.JH.2
7.11.138.232

avast!
Win32:IBryte-AJ [PUP]
2014.9-140610

AVG
Skodna.Generic
2015.0.3448

Baidu Antivirus
Adware.Win32.iBryte
4.0.3.14728

Clam AntiVirus
Win.Adware.Ibryte-82
0.98/18355

Comodo Security
ApplicUnwnt.Win32.AdWare.iBryte.H
17993

Dr.Web
Adware.Downware.803
9.0.1.0161

ESET NOD32
Win32/Adware.iBryte (variant)
8.9596

Fortinet FortiGate
Riskware/IBryte
6/10/2014

F-Prot
W32/Ibryte.C3.gen
v6.4.7.1.166

G Data
Win32.Adware.OptimumInst
14.6.24

IKARUS anti.virus
Win32.SuspectCrc
t3scan.2.2.29

K7 AntiVirus
Adware
13.176.11554

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.3733

Malwarebytes
PUP.Optional.IBryte
v2014.06.10.08

McAfee
Adware-FOO!0E0D025A8D7D
5600.7104

NANO AntiVirus
Trojan.Win32.Downware.csnyes
0.28.0.58720

nProtect
Trojan-Clicker/W32.iBryte.685864
14.03.26.01

Qihoo 360 Security
Malware.QVM10.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.OptimumInstaller.N
14.8.8.3

Rising Antivirus
PE:Malware.Agent!6.3BF
23.00.65.14608

Sophos
iBryte Optimum Installer
4.98

Trend Micro House Call
HV_INSTALLER_CB24347F.TOMC
7.2.161

Vba32 AntiVirus
Adware.iBryte
3.12.24.3

VIPRE Antivirus
Optimum Installer
27750

Zillya! Antivirus
Adware.iBryte.Win32.296
2.0.0.1832

File size:
630.8 KB (645,928 bytes)

Product version:
2.1.13

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:
10/11/2012 2:00:00 AM

Valid to:
11/8/2013 12:59:59 AM

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:
1/4/2013 9:32:18 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:i6C0w9s0Dj3LF0JNjnmz0w8ajtzBwOhIzcJUE+JpR+xzSp:ix0w9s0DTLF0PKz0ruBNGoJUvyzSp

Entry address:
0x45425

Entry point:
E8, BE, DF, 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, 37, E0, 00, 00, 83, C4, 14, 5D, C3, FF, 35, EC, F8, 48, 00, E8, 76, 4F, 00, 00, 59, 85, C0, 74, 02, FF, D0, 6A, 19, E8, F3, A6, 00, 00, 6A, 01, 6A, 00, E8, 36, E3, 00, 00, 83, C4, 0C, E9, 17, E2, 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, 9B, 03, 00, 00, 6A, 16, 5E, 89, 30, 57, 57, 57, 57, 57, E8, CF, C8, FF, FF, 83, C4, 14...
 
[+]

Code size:
394.5 KB (403,968 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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