firefox_setup.exe

SetupManager.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 29 anti-malware scanners. The program is a setup application that uses the Adknowledge Fusion installer. Accoriding to the detections, it is a variant of Zbot (Zeus), a trojan that attempts to steal confidential information (online credentials, and banking details) from a compromised computer and send it to online criminals via a command-and-control server. 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:
SetupManager  (signed by Optimum Installer)

Product:
SetupManager.exe

Description:
Firefox Setup

Version:
3.4.7

MD5:
5db79227e7acda1965c234c4ff39c0f5

SHA-1:
0f655814d5bd037fca8a40e70ae8e833869b5aa4

SHA-256:
b4c7d6d80b9186fcc6b86466eaa1262705a961280d952f08e767927e1852ad6f

Scanner detections:
29 / 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:
4/30/2024 9:56:47 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.Agent
14.09.30

Avira AntiVirus
ADWARE/Adware.Gen7
7.11.144.160

avast!
Win32:Installer-J [PUP]
140929-0

AVG
Adware Generic5.YJH
2014.0.4025

Clam AntiVirus
WIN.Adware.Ibryte-110
0.98/19454

Comodo Security
ApplicUnwnt.Win32.AdWare.iBryte.H
18141

Dr.Web
Adware.Downware.1085
9.0.1.05190

ESET NOD32
Win32/Adware.iBryte.G application
7.0.302.0

Fortinet FortiGate
Riskware/IBryte
9/30/2014

F-Prot
W32/Ibryte.C.gen
4.6.5.141

G Data
Win32.Adware.OptimumInst
14.9.24

IKARUS anti.virus
not-a-virus:AdWare.Win32.Agent
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.176.11806

Kaspersky
not-a-virus:AdWare.Win32.Agent
15.0.0.494

Malwarebytes
PUP.Optional.Ibryte
v2014.09.30.08

McAfee
Adware-FOO!B9009FC00D92
5600.6992

NANO AntiVirus
Riskware.Win32.Agent.csnqmj
0.28.0.59288

Norman
Agent.ASWDM
11.20140930

nProtect
Trojan-Clicker/W32.Agent.909608
14.03.18.01

Qihoo 360 Security
Malware.QVM10.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.OptimumInstaller.N
14.9.30.8

Rising Antivirus
PE:Malware.iBryte!6.247
23.00.65.14928

SUPERAntiSpyware
Trojan.Agent/Gen-Ibryte
10328

Total Defense
Win32/Zbot.HIE
37.0.10826

Vba32 AntiVirus
SScope.Adware.OptimusInstaller.26607
3.12.26.0

VIPRE Antivirus
Optimum Installer
28454

Zillya! Antivirus
Adware.Agent.Win32.8162
2.0.0.1938

File size:
766.3 KB (784,680 bytes)

Product version:
3.4.7

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
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:
4/2/2013 5:30:30 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:6t6sQDGakts4bKYUg2AkDfmUIZsMS0jnHsduKSwV6NdDkrfEB8v4socSd6DUOJno:6tlqS2CUfEB8v4VNd6oO9Mei7WM/P

Entry address:
0x52FA5

Entry point:
E8, 01, 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, 7A, E2, 00, 00, 83, C4, 14, 5D, C3, FF, 35, F4, 9C, 4A, 00, E8, F6, 4E, 00, 00, 59, 85, C0, 74, 02, FF, D0, 6A, 19, E8, 21, A5, 00, 00, 6A, 01, 6A, 00, E8, 79, E5, 00, 00, 83, C4, 0C, E9, 5A, 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:
6.5490

Code size:
458 KB (468,992 bytes)

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

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