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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. 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:
DownloadManager  (signed by Optimum Installer)

Product:
DownloadManager.exe

Description:
Firefox Setup

Version:
3.1.5

MD5:
779a1ff325e5e6cc577e3da43fdc106a

SHA-1:
2ff5025f4bbc2eac787fa737b46123e9a0a327ae

SHA-256:
d7f187aa198c4ff2af2604799a715956f0b7f13e6222bf544b992b2b19defbdd

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 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:
4/30/2024 8:03:24 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
MemScan:Trojan.Generic.8819250
588

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.IBryte
15.06.26

Avira AntiVirus
ADWARE/Adware.Gen7
7.11.150.242

avast!
Win32:Installer-J [PUP]
2014.9-150626

AVG
Adware Generic5
2016.0.3066

Bitdefender
Application.Generic.514087
1.0.20.885

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
WIN.Adware.Ibryte-104
0.98/213

Comodo Security
ApplicUnwnt.Win32.AdWare.iBryte.H
18308

Dr.Web
Adware.Downware.1022
9.0.1.0177

Emsisoft Anti-Malware
MemScan:Trojan.Generic.8819250
8.15.06.26.01

ESET NOD32
Win32/Adware.iBryte.G application
9.7.0.302.0

Fortinet FortiGate
Riskware/IBryte
6/26/2015

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

F-Secure
MemScan:Trojan.Generic.8819250
11.2015-26-06_6

G Data
Application.Generic.514087
15.6.24

IKARUS anti.virus
Win32.SuspectCrc
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.178.12155

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.1827

Malwarebytes
PUP.Optional.IBryte
v2015.06.26.01

McAfee
Program.Adware-FOO
5600.6722

MicroWorld eScan
Application.Generic.514087
16.0.0.531

NANO AntiVirus
Trojan.Win32.Downware.cstcrs
0.28.0.59921

Norman
MemScan:Trojan.Generic.8819250
11.20150626

nProtect
Trojan-Clicker/W32.iBryte.703272
14.11.06.01

Qihoo 360 Security
Malware.QVM10.Gen
1.0.0.1015

Quick Heal
PUA.Optimumins.Gen
6.15.14.00

Reason Heuristics
PUP.Adknowledge.OptimumInstaller.Installer (M)
15.6.26.9

Rising Antivirus
PE:Adware.iBryte!6.FB5
23.00.65.15624

Sophos
PUA 'iBryte Optimum Installer'
5.14

Trend Micro House Call
HV_OPTIMUM_CG0934BE.RDXN
7.2.177

Vba32 AntiVirus
SScope.Adware.OptimusInstaller.26607
3.12.26.0

VIPRE Antivirus
Threat.4778314
29418

Zillya! Antivirus
Adware.Agent.Win32.8091
2.0.0.1797

File size:
740.3 KB (758,056 bytes)

Product version:
3.1.5

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 1:00:00 AM

Valid to:
11/7/2013 11:59:59 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:
3/12/2013 6:28:27 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:H0lH7Uxir7AM0+21gnS/sN2xTkcIAA/ajBRC/Gp4/yVv:H0lbUxy7AM0+21gdN22cIAAeBG3/w

Entry address:
0x518DD

Entry point:
E8, 0B, E2, 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, 84, E2, 00, 00, 83, C4, 14, 5D, C3, FF, 35, CC, 3D, 4A, 00, E8, 0E, 4F, 00, 00, 59, 85, C0, 74, 02, FF, D0, 6A, 19, E8, 3B, A7, 00, 00, 6A, 01, 6A, 00, E8, 83, E5, 00, 00, 83, C4, 0C, E9, 64, E4, 00, 00, 8B, FF, 55, 8B, EC, 8B, 45, 08, 66, 8B, 08, 40, 40, 66, 85, C9, 75, F6, 2B, 45, 08, D1, F8, 48, 5D, C3, 8B, FF, 55, 8B, EC, 8B, 55, 08, 53, 56, 57, 33, FF, 3B, D7, 74, 07, 8B, 5D, 0C, 3B...
 
[+]

Entropy:
6.5376

Code size:
452 KB (462,848 bytes)

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

http://install2.ez-download.com/o/.../Firefox_setup.exe

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