browser_update.exe

Google Chrome

Air Software

Warning, this is not the legitimate setup program for Google Chrome. The setup is bootstrapped by the Air Installer 'download manager' (a pay-per-install monetization download manager) that bundles unwanted software (adware, toolbars, extensions) during setup while deciving the user into thinking they are downloading the stadard installation setup from Google Chrome. The application browser_update.exe, “Google Chrome ” by Air Software has been detected as adware by 31 anti-malware scanners. The program is a setup application that uses the AirInstaller Download Manager 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:
AirInstaller   (signed by Air Software)

Product:
Google Chrome

Description:
Google Chrome

Version:
2.0.4.60

MD5:
4a9e756c6ae7512bd6205b4136f9fd8e

SHA-1:
388fc806cee7e00a04713f4476f3e850602f549b

Scanner detections:
31 / 68

Status:
Adware

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:
4/26/2024 5:36:00 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Bundler.L
377

Agnitum Outpost
PUA.AirAdInstaller
7.1.1

AhnLab V3 Security
Adware/Win32.AirAdInstaller
16.01.24

Avira AntiVirus
Adware/Airinstall.J
7.11.131.194

avast!
PUP-gen [PUP]
2014.9-160124

AVG
Adware Generic_r
2017.0.2855

Bitdefender
Application.Bundler.L
1.0.20.120

Clam AntiVirus
Win.Adware.Airadinstaller-84
0.98/19265

Comodo Security
Application.Win32.Agent.AJ
17787

Dr.Web
Trojan.SMSSend.4662
9.0.1.024

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.AirInstaller
8.16.01.24.10

ESET NOD32
Win32/AirAdInstaller.A potentially unwanted application
10.7.0.302.0

F-Prot
W32/AirInstall.A8.gen
v6.4.7.1.166

F-Secure
Application.Bundler.L
11.2016-24-01_1

G Data
Win32.Adware.Airadinstaller
16.1.24

IKARUS anti.virus
AdWare.Airinstall
t3scan.2.2.29

K7 AntiVirus
Unwanted-Program
13.1712403

Kaspersky
not-a-virus:AdWare.Win32.AirAdInstaller
14.0.0.768

Malwarebytes
PUP.Optional.AirInstaller
v2016.01.24.10

MicroWorld eScan
Application.Bundler.L
17.0.0.72

NANO AntiVirus
Riskware.Win32.AirAdInstaller.cwcgrr
0.28.0.60253

nProtect
Trojan-Clicker/W32.AirAdInstaller.836520
14.06.16.01

Panda Antivirus
Adware/AirInstaller
16.01.24.10

Qihoo 360 Security
Malware.QVM01.Gen
1.0.0.1015

Quick Heal
Adware.AirAdInstaller.C5
1.16.14.00

Reason Heuristics
PUP.Air Software.AirSoftware.Bundler (M)
16.1.24.10

Rising Antivirus
PE:PUF.Airinstall!1.9C4C
23.00.65.16122

Sophos
AirInstaller
4.97

Vba32 AntiVirus
AdWare.AirAdInstaller
3.12.24.3

VIPRE Antivirus
Threat.4782985
29708

Zillya! Antivirus
Adware.AirAdInstaller.Win32.122
2.0.0.1828

File size:
816.4 KB (836,008 bytes)

Product version:
2.0.4.60

Copyright:
(c) AirInstaller

Original file name:
setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

Common path:
C:\Documents and Settings\{user}\My documents\downloads\browser_update.exe

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
1/24/2013 7:00:00 PM

Valid to:
3/26/2015 7:59:59 PM

Subject:
CN=Air Software, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Air Software, L=Victoria, S=British Columbia, C=CA

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:
3AC786E09219DF82DA830E461D4FC39F

File PE Metadata
Compilation timestamp:
10/28/2013 12:14:04 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:3pfkL+1vdXMy2D7oROSIuYQ6iwKNHxtwB:3pcCj8yKKOqYL+RI

Entry address:
0x25D2A0

Entry point:
60, BE, 00, B0, 59, 00, 8D, BE, 00, 60, E6, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Entropy:
7.8796

Packer / compiler:
UPX 2.90LZMA

Code size:
780 KB (798,720 bytes)

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

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