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windows_8_update.exe

WARP INSTALL

The software uses the Optimum Installer/Fusion Installer (Adknowledge) to download and install an offer stack of adware including toolbars, coupon extensions and various unwanted utilities. This installer is just a stub to present offers and download the expected software. The application windows_8_update.exe, “Premium Installer ” by WARP INSTALL has been detected as adware by 30 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.
Publisher:
Premium Installer   (signed by WARP INSTALL)

Product:
Premium Installer

Description:
Premium Installer

Version:
1.3.7.2

MD5:
c37086e4802f31f5c2af285939d6fe58

SHA-1:
b1edd95923e6f5ae03da5c51a8016cf29dd0e91d

SHA-256:
ec91718847aaf24e566e2b90310df0862916e3150e62e00202a3259a06ba7575

Scanner detections:
30 / 68

Status:
Adware

Explanation:
This setup/installer bundles various adware components (toolbars, shopping extensions, utility offers).

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:
4/20/2024 10:17:31 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.OptimumInstaller.1
6426481

Avira AntiVirus
Adware/iBryte.bxoq
7.11.211.154

avast!
Win32:Somoto-N [PUP]
150203-1

AVG
Generic
2016.0.3193

Bitdefender
Gen:Variant.Application.Bundler.OptimumInstaller.1
1.0.20.250

Clam AntiVirus
Win.Adware.Agent-6738
0.98/20079

Comodo Security
Application.Win32.IBryte.S
21139

Dr.Web
Trojan.Packed.28561
9.0.1.05190

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

ESET NOD32
Win32/AdWare.iBryte.S application
7.0.302.0

Fortinet FortiGate
Riskware/Generic.AC.13751
2/19/2015

F-Prot
W32/DomaIQ.G2.gen
v6.4.7.1.166

F-Secure
Gen:Variant.Application.Bundler
11.2015-19-02_5

G Data
Gen:Variant.Application.Bundler.OptimumInstaller
15.2.25

IKARUS anti.virus
not-a-virus:Downloader.Win32.Agent
t3scan.1.8.6.0

K7 AntiVirus
Unwanted-Program
13.197.15026

Kaspersky
not-a-virus:Downloader.Win32.Agent
15.0.0.543

Malwarebytes
PUP.Optional.OptimumInstaller.A
v2015.02.19.04

McAfee
Program.IBryte-FSU
16.8.708.2

MicroWorld eScan
Gen:Variant.Application.Bundler.OptimumInstaller.1
16.0.0.150

NANO AntiVirus
Trojan.Win32.Downware.cvgamb
0.30.0.126

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

Panda Antivirus
Trj/Genetic.gen
15.02.19.04

Quick Heal
Adware.iBryte.DK4
2.15.14.00

Reason Heuristics
PUP.Installer.Adknowledge
15.2.19.16

Rising Antivirus
PE:Malware.iBryte!6.14B5
23.00.65.15217

Sophos
PUA 'iBryte Optimum Installer'
5.10

Vba32 AntiVirus
Downloader.Agent
3.12.26.3

VIPRE Antivirus
Threat.4778314
36694

Zillya! Antivirus
Downloader.Agent.Win32.185526
2.0.0.2075

File size:
216.3 KB (221,472 bytes)

Product version:
1.3.7.2

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\windows_8_update.exe

Digital Signature
Signed by:
WARP INSTALL

Authority:
VeriSign, Inc.

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

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

Subject:
CN=WARP INSTALL, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=WARP INSTALL, 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:
52A35E3AC3B67E8CD7BB42D490658BBA

File PE Metadata
Compilation timestamp:
3/19/2014 10:07:54 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
3072:l4GkDg9Lc0bZvBJi13zTnyqJzqoVB5UOwj8G65I2nyjB5qWpyX:jkIg09kCSf5UOW8GDaWpyX

Entry address:
0xD2AB

Entry point:
E8, 0C, 48, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, AC, 72, 42, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, 5C, 70, 42, 00, C9, C2, 08, 00, 8B, FF, 55, 8B, EC, 51, 53, 8B, 45, 0C, 83, C0, 0C, 89, 45, FC, 64, 8B, 1D, 00, 00, 00, 00, 8B, 03, 64, A3, 00, 00, 00, 00, 8B, 45, 08, 8B, 5D, 0C, 8B, 6D, FC, 8B, 63...
 
[+]

Entropy:
6.4017

Code size:
152 KB (155,648 bytes)

The file windows_8_update.exe has been seen being distributed by the following URL.

http://secure.pn-installer2.com/o/.../Windows_8_Update.exe

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