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YontooIEClient.dll

Yontoo 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 26 anti-malware scanners. It is installed within the context of Internet Explore as a BHO (Browser Helper Object) under the name ‘Yontoo Layers’. By plugging into the web browser, this extension will inject advertisements both banner and context hyperlinks based on the web sites being visited. It can be installed from the program's website or it may be bundled by third-party software installation programs.
Publisher:
Yontoo LLC  (signed and verified)

Product:
Yontoo Runtime

Version:
1.10.01

MD5:
a0fdbcb6fd84031ea08991e001a76e31

SHA-1:
c54ed8fb46effab92626e033b3ab9c119f9553e3

SHA-256:
27f01431a2be496b89735049836aa8938d689735021fd04f75891c074ad09416

Scanner detections:
26 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/25/2024 9:41:42 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Generic.573891
814

Agnitum Outpost
Adware.WebCake
7.1.1

Baidu Antivirus
Adware.Win32.WebCake
4.0.3.141112

Bitdefender
Application.Generic.573891
1.0.20.1580

Bkav FE
W32.Clod973.Trojan
1.3.0.4613

Clam AntiVirus
Win.Adware.Yontoo-4
0.98/21155

Comodo Security
Application.Win32.Yontoo.a
16955

Dr.Web
Adware.Plugin.11
9.0.1.0316

ESET NOD32
Win32/Adware.Yontoo (variant)
8.8812

Fortinet FortiGate
Adware/WebCake
11/12/2014

F-Prot
W32/Adware.AKRZ
v6.4.7.1.166

G Data
Application.Generic.573891
14.11.24

IKARUS anti.virus
not-a-virus:AdWare.Win32.WebCake
t3scan.1.6.1.0

K7 AntiVirus
Adware
13.1712319

Kaspersky
not-a-virus:AdWare.Win32.WebCake
14.0.0.2956

McAfee
Artemis!A0FDBCB6FD84
5600.6948

MicroWorld eScan
Application.Generic.573891
15.0.0.948

NANO AntiVirus
Trojan.Win32.Siggen.cocwct
0.28.0.57630

Quick Heal
AdWare.WebCake.r6 (Not a Virus)
11.14.14.00

Reason Heuristics
PUP.BHO.Yontoo.O
14.11.12.20

Rising Antivirus
Trojan.Win32.Generic.137177DE
23.00.65.141110

SUPERAntiSpyware
Adware.Yontoo
10241

Trend Micro House Call
TROJ_GEN.R0C1C0OAL14
7.2.316

Trend Micro
TROJ_GEN.R0C1C0OAL14
10.465.12

Vba32 AntiVirus
AdWare.WebCake
3.12.26.0

VIPRE Antivirus
Yontoo
29996

File size:
190.4 KB (194,928 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\yontooieclient.dll

Digital Signature
Signed by:
Yontoo LLC

Authority:
VeriSign, Inc.

Valid from:
12/6/2011 7:00:00 PM

Valid to:
12/6/2012 6:59:59 PM

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:
10/16/2012 7:26:49 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:8vWMjk7cpgC5sMGweABHpBWeJn+oST8l3pKU7FV/QFfmufJp4:8TS2/5r7BdJn+fapKCA4

Entry address:
0x12587

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, B5, 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:
6.3441

Code size:
119.5 KB (122,368 bytes)

Internet Explorer BHO
Display name:
Yontoo Layers

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

CLSID name:
Yontoo


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