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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 21 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:
20494f0692e46461414c5bf83f549816

SHA-1:
1af13c15cb85976c8583d579c0295007122cbe4b

SHA-256:
fa674f0f46769bd3d54d674ff787b1235c2b272e395e603df376796fd208cdcb

Scanner detections:
21 / 68

Status:
Adware

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

Analysis date:
4/26/2024 12:22:32 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Yontoo
7.1.1

Avira AntiVirus
Adware/BHO.K.1
7.11.90.238

AVG
Yontoo
2016.0.2903

Baidu Antivirus
Adware.Win32.Yontoo
4.0.3.15127

Bkav FE
W32.Clodbe8.Trojan
1.3.0.4959

Comodo Security
Application.Win32.Yontoo.a
21939

Dr.Web
Adware.Siggen.24249
9.0.1.0341

ESET NOD32
Win32/Adware.Yontoo (variant)
9.11553

Fortinet FortiGate
Riskware/Yontoo
12/7/2015

G Data
Win32.Application.Agent.AWEQ89
15.12.25

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
14.0.0.1008

McAfee
Artemis!4EF28B83561A
5600.6559

NANO AntiVirus
Riskware.Win32.Siggen.cyptve
0.30.24.1357

Reason Heuristics
PUP.Yontoo (M)
15.12.7.9

SUPERAntiSpyware
Adware.Yontoo
9462

Total Defense
Win32/Yontoo.V
37.1.62.1

Trend Micro House Call
TROJ_GEN.R0C1H05AO15
7.2.341

Trend Micro
ADW_YONTOO
10.465.07

VIPRE Antivirus
Yontoo
39798

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:
11/23/2011 2:30:24 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:U0Kgjk/O8i3I1isii1Ow4VT+c23IU8e6RyW8HbKU7XFNQFfmuf1j:U0KwPkiUO+c24UF60PbKcS

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:
6.3436

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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