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YontooIEClient.dll

Yontoo Layers Runtime

Yontoo LLC

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module YontooIEClient.dll by Yontoo has been detected as adware by 25 anti-malware scanners. It is installed within the context of Internet Explore as a BHO (Browser Helper Object) under the name ‘Yontoo Layers’. This file is typically installed with the program Yontoo Layers Runtime 1.10.01 by Yontoo Technology, Inc. which is a potentially unwanted software program.
Publisher:
Yontoo LLC  (signed and verified)

Product:
Yontoo Layers Runtime

Version:
1.10.01

MD5:
7502705b21df8ac9ec045790f9ffba3c

SHA-1:
1481b8b23617d788e9f4ecb65d7512b48343cc27

SHA-256:
0dfdac0043c643ff1e322c7f56a41b37552fe739ae2400e1ba6e44a70cc105ca

Scanner detections:
25 / 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:
4/24/2024 4:18:05 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Generic.574246
578

Agnitum Outpost
Adware.Yontoo
7.1.1

Avira AntiVirus
Adware/Yontoo.A.23
7.11.182.186

Baidu Antivirus
Adware.Win32.Yontoo
4.0.3.1576

Bitdefender
Application.Generic.574246
1.0.20.935

Bkav FE
W32.YontooBho.Trojan
1.3.0.6185

Clam AntiVirus
Win.Adware.Yontoo-2
0.98/21411

Comodo Security
Application.Win32.Yontoo.a
19960

Dr.Web
Adware.Siggen.24249
9.0.1.0187

Emsisoft Anti-Malware
Adware.Win32.Yontoo.AMN
8.15.07.06.11

ESET NOD32
Win32/Adware.Yontoo
9.10656

Fortinet FortiGate
Riskware/Yontoo
7/6/2015

G Data
Application.Generic.574246
15.7.24

IKARUS anti.virus
Win32.SuspectCrc
t3scan.1.8.3.0

K7 AntiVirus
Adware
13.185.13866

Malwarebytes
Adware.Yontoo
v2015.07.06.11

McAfee
Artemis!7502705B21DF
5600.6712

MicroWorld eScan
Application.Generic.574246
16.0.0.561

Qihoo 360 Security
Win32/Virus.Adware.0cb
1.0.0.1015

Reason Heuristics
PUP.Yontoo (M)
15.7.6.23

Trend Micro House Call
TROJ_GEN.R0C1C0OGC13
7.2.187

Trend Micro
TROJ_GEN.R0C1C0OGC13
10.465.06

Vba32 AntiVirus
Adware.Yontoo
3.12.26.3

VIPRE Antivirus
Yontoo
34444

Zillya! Antivirus
Adware.Yontoo.Win32.23
2.0.0.1974

File size:
190.3 KB (194,848 bytes)

Product version:
1.10.01

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

Original file name:
YontooIEClient.dll

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\Program Files\yontoo layers runtime\yontooieclient.dll

Digital Signature
Signed by:
Yontoo LLC

Authority:
GoDaddy.com, Inc.

Valid from:
5/9/2011 2:10:37 PM

Valid to:
5/9/2012 2:10:37 PM

Subject:
CN=Yontoo LLC, O=Yontoo LLC, L=Carlsbad, S=CA, C=US

Issuer:
SERIALNUMBER=07969287, CN=Go Daddy Secure Certification Authority, OU=http://certificates.godaddy.com/repository, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
07E1F9EBCCC1AC

File PE Metadata
Compilation timestamp:
6/7/2011 5:03:03 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:SMMDvRZfB7LP0GHNL8T+Z2Ll6dqYUOvigKU7KobcrAFfmTOuz:SMkRLh++Z2J6oYU2KZl

Entry address:
0x125C7

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, C5, 65, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, 8B, FF, 55, 8B, EC, 8B, 45, 08, A3, D0, 8D, 02, 10, 5D, C3, 8B, FF, 55, 8B, EC, FF, 35, D0, 8D, 02, 10, FF, 15, 58, 01, 02, 10, 85, C0, 74, 0F, FF, 75, 08, FF, D0, 59, 85, C0, 74, 05, 33, C0, 40, 5D, C3, 33, C0, 5D, C3, 6A, 00, 68, 00, 10, 00, 00, 6A, 00, FF, 15, 50, 01, 02, 10, 33, C9, 85, C0, 0F, 95, C1, A3, D8, 8D, 02, 10, 8B, C1, C3, FF, 35, D8, 8D, 02, 10, FF, 15...
 
[+]

Entropy:
6.3452

Code size:
119.5 KB (122,368 bytes)

Internet Explorer BHO
Display name:
Yontoo Layers

CLSID:
{FD72061E-9FDE-484D-A58A-0BAB4151CAD8}


The file YontooIEClient.dll has been discovered within the following program.

Yontoo Layers Runtime 1.10.01  by Yontoo Technology, Inc.
Yontoo Layers Runtime is a web browser toolbar and extension that allows users to personalize their web experience when utilizing Internet Explorer, Mozilla Firefox, and Chrome.
www.yontoo.com
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