home

yontoosetup-s.exe

Yontoo

Yontoo LLC

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application yontoosetup-s.exe by Yontoo has been detected as adware by 16 anti-malware scanners. This is a setup and installation application and has been known to bundle potentially unwanted software. It is also typically executed from the user's temporary directory.
Publisher:
Yontoo LLC  (signed and verified)

Product:
Yontoo

Description:
Installer

Version:
2012.5.16.1137

MD5:
e8f0c3af81a302e9e1580f851ad84c5f

SHA-1:
9bc097429b54da7d4e36d169ebaa39e01dae1300

SHA-256:
056dea23f3eeb7a28d3274b094180f56dbac459fb3d45a6a007d48d7956ea595

Scanner detections:
16 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/26/2024 8:25:47 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Adware.Yontoo
7.1.1

Avira AntiVirus
ADWARE/Yontoo.Gen
7.11.115.110

Baidu Antivirus
AdWare.Win32.Yontoo
4.0.3.131223

Boost by Reason
Optional.Yontoo.N
188838

Comodo Security
UnclassifiedMalware
17332

Dr.Web
Adware.Siggen.24249
9.0.1.0357

ESET NOD32
Win32/Adware.Yontoo (variant)
7.9087

IKARUS anti.virus
AdWare.Yontoo
t3scan.2.2.29

Malwarebytes
PUP.Optional.Yontoo.A
v2013.12.23.05

MicroWorld eScan
Adware/Yontoo.E.1
15.0.0.21

NANO AntiVirus
Trojan.Win32.Siggen.bkcmvz
0.26.0.53954

Reason Heuristics
PUP.Installer.Yontoo.N
14.8.7.17

Rising Antivirus
Trojan.InstallRex!562A
23.00.65.131221

Trend Micro House Call
TROJ_FAKEAV.BMC
7.2.357

Trend Micro
TROJ_FAKEAV.BMC
10.465.23

VIPRE Antivirus
Yontoo
23700

File size:
1 MB (1,051,840 bytes)

Product version:
1.10.02

Copyright:
Copyright (c) 2011 Yontoo LLC. All rights reserved.

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\yontoosetup-s.exe

Digital Signature
Signed by:
Yontoo LLC

Authority:
VeriSign, Inc.

Valid from:
12/7/2011 3:00:00 AM

Valid to:
12/7/2012 2:59:59 AM

Subject:
CN=Yontoo LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Yontoo LLC, L=Carlsbad, S=California, 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:
4F8617352536F013088C9B5533AA4440

File PE Metadata
Compilation timestamp:
8/9/2011 1:55:34 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
12288:30nOsDZc70sG9dzvBAqgAHNHcrBzskW45FBLRQm1CBYU9Hc29YnwylVVhJNmXdY1:dYU0V5HosS5FBdLDeHyVVhaXdp7cp

Entry address:
0x1627

Entry point:
55, 8B, EC, 81, EC, 58, 0B, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, A8, F4, FF, FF, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 00, 40, 40, 00, FF, 15, 70, 30, 40, 00, 89, 45, F8, 8D, 85, B8, FC, FF, FF, 50, C7, 85, B8, FC, FF, FF, 14, 01, 00, 00, FF, 15, 6C, 30, 40, 00, 85, C0, 75, 21, FF, 15, 14, 30, 40, 00, 50, 68, 30, 34, 40, 00, E8, 40, FA, FF, FF, 59, C7, 05, 04, 40, 40, 00, FF, 00, 00, 00, E9, C5, 01, 00, 00, 68, 1C, 34, 40, 00, 68, 0C, 34, 40, 00, FF, 15, 68, 30, 40, 00, 50, FF, 15, 64, 30, 40, 00, 3B...
 
[+]

Entropy:
7.9954

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

Remove yontoosetup-s.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.