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wintoflash_downloader_by_betterinstaller.exe

Somoto Ltd.

Somoto uses a monetization platform known as the 'Better Installer' to provide the ability of 3rd party developers to bundle various adware packages through an affiliate pay-per-install program. The application wintoflash_downloader_by_betterinstaller.exe, “Powered by BetterInstaller” by Somoto has been detected as adware by 50 anti-malware scanners. The program is a setup application that uses the Somoto BetterInstaller installer. Includes the Somoto BetterInstaller, an adware installer that will bundle offers for additional third party applications, mostly adware toolbars, with legitimate softare and may be installed without adequate user consent.
Publisher:
Somoto Ltd.  (signed and verified)

Description:
Powered by BetterInstaller

Version:
2.1.0.0

MD5:
b10a1f11a1332b7f38474a47c01f3554

SHA-1:
5446eba4a260f9f6a57f660064fb21ff4d11b055

SHA-256:
0b53ac7980ceb116c5c0f6c58677038eda247d13502edbfe592b3b5a7a17c553

Scanner detections:
50 / 68

Status:
Adware

Explanation:
Uses the Somoto 'BetterInstaller' to bundle additional (unwanted) software during install without adequate consent.

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:
4/19/2024 2:14:52 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Bundler.Somoto.A
976

Agnitum Outpost
PUA.Somoto
7.1.1

Avira AntiVirus
APPL/Somoto.cnu
7.11.151.172

avast!
Win32:Somoto-F [PUP]
2014.9-140604

AVG
AdInstaller.Somoto
2015.0.3454

Baidu Antivirus
Adware.Win32.Somoto
4.0.3.1464

Bitdefender
Application.Bundler.Somoto.A
1.0.20.775

Bkav FE
W32.Clod59f.Trojan
1.3.0.4959

Clam AntiVirus
Adware.Somoto-1
0.98/213

Comodo Security
Application.Win32.Somoto.A
18339

Dr.Web
Adware.Somoto.17
9.0.1.0155

ESET NOD32
Win32/Somoto
8.9853

Fortinet FortiGate
Riskware/Somoto
6/4/2014

F-Prot
W32/SomotoBetterInstaller.A
v6.4.7.1.166

F-Secure
Application.Bundler.Somoto
11.2014-04-06_4

G Data
Application.Bundler.Somoto
14.6.24

Kaspersky
not-a-virus:Downloader.NSIS.Agent
14.0.0.3763

Malwarebytes
PUP.Optional.Somoto
v2014.06.04.11

MicroWorld eScan
Application.Bundler.Somoto.A
15.0.0.465

NANO AntiVirus
Trojan.Win32.Agent.cruvhh
0.28.0.59921

Panda Antivirus
PUP/MultiToolbar.A
14.06.04.11

Qihoo 360 Security
Win32/Virus.Downloader.832
1.0.0.1015

Reason Heuristics
PUP.BetterInstaller.Somoto.i
14.8.7.17

Sophos
Somoto BetterInstaller
4.98

SUPERAntiSpyware
Adware.Somoto
10564

VIPRE Antivirus
BetterInstaller
29654

File size:
159.6 KB (163,408 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Somoto BetterInstaller

Language:
Language Neutral

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

Digital Signature
Signed by:
Somoto Ltd.

Authority:
COMODO CA Limited

Valid from:
9/19/2011 9:00:00 PM

Valid to:
9/19/2014 8:59:59 PM

Subject:
CN=Somoto Ltd., O=Somoto Ltd., STREET=PO Box 58096, L=Tel Aviv, S=--, PostalCode=61580, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00841D099D16B738F34172FEEFE1D2574F

File PE Metadata
Compilation timestamp:
12/17/2010 6:14:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
3072:O22ihA0m3BJf0AkshBBxjcWMvuSJWpcr1WKy1IXnNAet8SLFQec8:BA0m3T0Akshx4tDZ11y1IXNdtd

Entry address:
0x39AC

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, 7C, 01, 00, 00, E8, 97, 46, 00, 00, 83, EC, 0C, 68, 01, 80, 00, 00, E8, 42, 43, 00, 00, 6A, 00, E8, AB, 46, 00, 00, 6A, 08, A3, 88, 4C, 42, 00, E8, B1, 28, 00, 00, 6A, 00, 68, 60, 01, 00, 00, A3, 38, 4D, 42, 00, 8D, 85, 90, FE, FF, FF, 50, 6A, 00, 68, A4, A2, 40, 00, E8, F0, 45, 00, 00, 83, EC, 0C, 68, A5, A2, 40, 00, 68, 68, 4D, 42, 00, E8, EF, 2A, 00, 00, 83, C4, 18, E8, FE, 42, 00, 00, 52, 52, 50, 68, 00, D0, 42, 00, E8, DA, 2A, 00, 00, 57, 6A, 00, E8, 39, 42, 00, 00, 83...
 
[+]

Code size:
28.5 KB (29,184 bytes)

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

http://downloadserver3.wintoflash.com/.../Wintoflash_downloader_by_betterinstaller.exe

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