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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 18 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:
3eb0bc72d47f0cc37000ab1055e5143d

SHA-1:
d03f66ea0f9033c320455d2c99260f64b9f8005d

SHA-256:
e32902e0e1c372b9ae0b7d76051e3b6ce824873331d0773a4f580551413bd11e

Scanner detections:
18 / 68

Status:
Adware

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

Analysis date:
4/25/2024 2:51:36 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Adware
7.1.1

Avira AntiVirus
Adware/BHO.K.1
7.11.90.238

Baidu Antivirus
Adware.Win32.Yontoo
4.0.3.1443

Bkav FE
W32.Clodbe8.Trojan
1.3.0.4959

Boost by Reason
Optional.BHO.Yontoo.O
188838

Comodo Security
Application.Win32.Yontoo.a
17862

Dr.Web
Adware.Siggen.24249
9.0.1.093

ESET NOD32
Win32/Adware.Yontoo (variant)
8.9485

IKARUS anti.virus
not-a-virus:AdWare.Win32.WebCake
t3scan.2.2.29

K7 AntiVirus
Unwanted-Program
13.174.10644

Kaspersky
not-a-virus:AdWare.Win32.WebCake
14.0.0.4073

McAfee
Artemis!3EB0BC72D47F
5600.7172

NANO AntiVirus
Trojan.Win32.Siggen.cocwct
0.28.0.57029

Reason Heuristics
PUP.BHO.Yontoo.O
14.8.7.17

SUPERAntiSpyware
Adware.Yontoo
10688

Trend Micro House Call
TROJ_GEN.R0CBH05BB14
7.2.93

Trend Micro
ADW_YONTOO
10.465.03

VIPRE Antivirus
Yontoo
26938

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\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:
12/7/2011 6:13:01 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:O0Kgjk/O8i3I1isii1uwD1T+c23IjseBhyv4HcKU7kFqQFfmuf1E2:O0KwPki0V+c24j1BkIcKbt

Entry address:
0x12587

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:
6.3442

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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