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update.exe

INSTALL DOT EXE

This adware bundler is distributed through Adknowledge's advertising supported software managers. The application update.exe, “Premium Installer ” by INSTALL DOT EXE has been detected as adware by 38 anti-malware scanners. The program is a setup application that uses the Adknowledge Fusion installer. This program installs potentially unwanted software on your PC at the same time as the software you are trying to install, without adequate consent. The file has been seen being downloaded from secure.4-pn-installer.com and multiple other hosts.
Publisher:
Premium Installer   (signed by INSTALL DOT EXE)

Product:
Premium Installer

Description:
Premium Installer

Version:
2.4.8.1

MD5:
c4d66a6fc1e50fe405e54a776e370cc3

SHA-1:
1710895555d4f5742edd62605d941f24e64ca90a

SHA-256:
8dc43093e014d99f52b8001964468b3865b8446a630c73d1c3a8105d07a1178f

Scanner detections:
38 / 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:
4/19/2024 4:12:00 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.OptimumInstaller.1
6336451

Agnitum Outpost
PUA.Agent
7.1.1

AhnLab V3 Security
Trojan/Win32.Buzus
15.01.11

Avira AntiVirus
Adware/iBryte.qoemnb
7.11.141.246

avast!
IBryte-CC [PUP]
150102-1

AVG
Adware Skodna.Generic
2016.0.3232

Bitdefender
Application.Generic.593289
1.0.20.55

Clam AntiVirus
Win.Adware.Agent-6804
0.98/21411

Comodo Security
Application.Win32.iBryte.R
18069

Dr.Web
Trojan.Packed.25441
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.OptimumInstaller
9.0.0.4799

ESET NOD32
Win32/AdWare.iBryte.Q application
7.0.302.0

Fortinet FortiGate
Riskware/IBryte
1/11/2015

F-Prot
W32/Backdoor2.HTKO
v6.4.7.1.166

F-Secure
Riskware.Gen:Variant.Application.Bundler
5.13.68

G Data
Win32.Application.OptimumInstaller
15.1.24

IKARUS anti.virus
Win32.AdWare
t3scan.2.2.29

K7 AntiVirus
Unwanted-Program
13.176.11696

Kaspersky
HEUR:Trojan.Win32.Generic
14.0.0.2657

Malwarebytes
PUP.Optional.OptimumInstaller.A
v2015.01.11.02

McAfee
Artemis!5032EA165D47
5600.6888

MicroWorld eScan
Application.Generic.593289
16.0.0.33

NANO AntiVirus
Trojan.Win32.Buzus.ctabuf
0.28.0.59048

Norman
Gen:Variant.Application.Bundler.OptimumInstaller.1
03.12.2014 13:20:04

nProtect
Trojan/W32.Buzus.1708840
14.05.12.01

Panda Antivirus
PUP/iBryte
15.01.11.02

Qihoo 360 Security
Malware.QVM10.Gen
1.0.0.1015

Quick Heal
Adware.iBryte.DK4
1.15.14.00

Reason Heuristics
PUP.Installer.INSTALLDOTEXE.G
15.1.11.14

Rising Antivirus
PE:PUF.PremiumInstaller!1.9F73
23.00.65.15109

Sophos
PUA 'iBryte Optimum Installer'
5.09

SUPERAntiSpyware
Adware.OptimumInstaller/Variant
10122

Total Defense
Win32/Tnega.EHeKKHD
37.0.10885

Trend Micro House Call
TROJ_GEN.F47V0127
7.2.11

Trend Micro
TROJ_BUZUS_DD300467.UVPA
10.465.11

Vba32 AntiVirus
SScope.Malware-Cryptor.iBryte
3.12.26.0

VIPRE Antivirus
Optimum Installer
28128

Zillya! Antivirus
Trojan.Buzus.Win32.120254
2.0.0.1775

File size:
1.7 MB (1,741,608 bytes)

Product version:
2.4.8.1

Copyright:
Copyright (C) 2013 Premium Installer

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

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

Digital Signature
Signed by:
INSTALL DOT EXE

Authority:
VeriSign, Inc.

Valid from:
10/3/2013 5:00:00 PM

Valid to:
9/20/2014 4:59:59 PM

Subject:
CN=INSTALL DOT EXE, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=INSTALL DOT EXE, 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:
4C8303B332693FCF64E1E7DFD7841493

File PE Metadata
Compilation timestamp:
2/10/2014 9:03:53 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
24576:u/KRpAoEaNmfr0chSGck/4e8ZluppSTQYAXRdnV37xc4DrNeeatvuyqRn:CKRpAoHUoU9wequppSQXNxaeyvzqF

Entry address:
0x38D55

Entry point:
E8, 5A, 8E, 00, 00, E9, 78, FE, FF, FF, 6A, 0C, 68, E0, 7C, 47, 00, E8, C1, 35, 00, 00, 83, 65, E4, 00, 8B, 75, 08, 3B, 35, D8, 32, 5A, 00, 77, 22, 6A, 04, E8, 5D, 90, 00, 00, 59, 83, 65, FC, 00, 56, E8, BF, 9D, 00, 00, 59, 89, 45, E4, C7, 45, FC, FE, FF, FF, FF, E8, 09, 00, 00, 00, 8B, 45, E4, E8, CD, 35, 00, 00, C3, 6A, 04, E8, 40, 8F, 00, 00, 59, C3, 8B, FF, 55, 8B, EC, 83, 3D, 14, 1F, 5A, 00, 00, 75, 18, E8, 95, 83, 00, 00, 6A, 1E, E8, BD, 81, 00, 00, 68, FF, 00, 00, 00, E8, D7, 4C, 00, 00, 59, 59, A1...
 
[+]

Entropy:
7.1224

Code size:
404 KB (413,696 bytes)

The file update.exe has been seen being distributed by the following 4 URLs.

http://secure.4-pn-installer.com/o/.../update.exe

https://install.fusioninstall.com/o/.../update.exe

http://secure.oinstaller.com/o/.../update.exe

http://downloadju.com/direct/.../update.exe

Remove update.exe - Powered by Reason Core Security
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