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express_installer.exe

Premium Installer

This is published and distributed via an Adknowledge's advertising supported (adware) software installer. The application express_installer.exe by Premium Installer has been detected as adware by 34 anti-malware scanners. The program is a setup application that uses the Adknowledge Fusion installer. The file has been seen being downloaded from install.optimum-installer.com.
Publisher:
ExpressInstaller  (signed by Premium Installer)

Product:
ExpressInstaller

Version:
3, 7, 1, 0

MD5:
465b1f7d1dffe58702be601fd9efa466

SHA-1:
8ba7187d1e230b4cc553577457063aedaf32cc35

SHA-256:
673d2b7afaca603bd220549d9a557ea26cec92a07f41f2bc15bdd52a2d85f52f

Scanner detections:
34 / 68

Status:
Adware

Explanation:
This setup/installer bundles various adware components.

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:
4/25/2024 7:07:34 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Jatif.89
387

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.IBryte
2014.10.03

Avira AntiVirus
Adware/iBryte.jcs.14
7.11.176.92

avast!
Win32:Installer-K [PUP]
2014.9-160114

AVG
Adware AdInstaller.ExpressInstall
2017.0.2865

Bitdefender
Gen:Variant.Adware.Jatif.89
1.0.20.70

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Ibryte-328
0.98/19265

Comodo Security
Application.Win32.iBryte.M
19685

Dr.Web
Adware.Downware.1503, Adware.Downware.1479
9.0.1.014

Emsisoft Anti-Malware
Gen:Variant.Adware.Jatif.89
8.16.01.14.10

ESET NOD32
Win32/AdWare.iBryte.K.gen application
10.7.0.302.0

Fortinet FortiGate
Riskware/PremiumInstaller
1/14/2016

F-Prot
W32/A-495a7e06
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.Jatif
11.2016-14-01_5

G Data
Gen:Variant.Adware.Jatif.89
16.1.25

IKARUS anti.virus
Trojan.Win32.Buzus
t3scan.1.7.8.0

K7 AntiVirus
Riskware
13.183.13550

Kaspersky
not-a-virus:AdWare.Win32.iBryte
14.0.0.818

Malwarebytes
PUP.Optional.iBryte
v2016.01.14.10

MicroWorld eScan
Gen:Variant.Adware.Jatif.89
17.0.0.42

NANO AntiVirus
Trojan.Win32.Downware.cqiqwb
0.28.2.62440

Norman
Gen:Variant.Adware.Jatif.89
11.20160114

nProtect
Trojan-Clicker/W32.iBryte.1747608
14.10.02.01

Panda Antivirus
PUP/MultiToolbar.A
16.01.14.10

Qihoo 360 Security
Malware.QVM10.Gen
1.0.0.1015

Quick Heal
PUA.iBryte.DC4
1.16.14.00

Reason Heuristics
PUP.Adknowledge.PremiumInstaller.Installer (M)
16.1.14.10

Rising Antivirus
PE:Malware.iBryte!6.453
23.00.65.16112

Sophos
iBryte Optimum Installer
4.98

Vba32 AntiVirus
BScope.Malware-Cryptor.iBryte
3.12.26.3

VIPRE Antivirus
Threat.4778314
33520

Zillya! Antivirus
Trojan.Buzus.Win32.118729
2.0.0.1941

File size:
1.6 MB (1,668,248 bytes)

Product version:
3, 7, 1, 0

Copyright:
Copyright (C) 2013 ExpressInstaller

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

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

Digital Signature
Signed by:
Premium Installer

Authority:
VeriSign, Inc.

Valid from:
7/13/2013 1:00:00 AM

Valid to:
8/3/2014 12:59:59 AM

Subject:
CN=Premium Installer, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Premium Installer, L=Wilmington, S=Delaware, 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:
35BB74B905C01CE61DA131BA49337F33

File PE Metadata
Compilation timestamp:
9/20/2013 9:31:39 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
24576:XcgmxAdkrm7jgu9IxXXLfvj8aXZKnyMUdQ8W32+9Bcfw:iaKqwjj8AZKfv32Cv

Entry address:
0x4A3C

Entry point:
E8, FB, 35, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 5C, C2, 41, 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, 44, C0, 41, 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:
5.1629

Code size:
107 KB (109,568 bytes)

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

http://install.optimum-installer.com/o/.../Express_Installer.exe

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