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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. 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. It is also typically executed from the user's temporary directory.
Publisher:
Yontoo LLC  (signed and verified)

Product:
Yontoo Runtime

Version:
1.10.01

MD5:
a160c20755f5c0d64e336c0b202bc3f9

SHA-1:
c9a0d9de3c3486b157a9079abb51b853d838aa05

SHA-256:
075abb1e24235c0d63dea19951007393d972f7bb89dc9871934955167cba34ba

Scanner detections:
21 / 68

Status:
Adware

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

Analysis date:
12/23/2024 5:40:49 PM 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
2016.0.2914

Baidu Antivirus
Adware.Win32.Yontoo
4.0.3.151126

Bkav FE
W32.Clodbe8.Trojan
1.3.0.4959

Comodo Security
Application.Win32.Yontoo.a
21939

Dr.Web
Adware.Siggen.24249
9.0.1.0330

ESET NOD32
Win32/Adware.Yontoo (variant)
9.11553

Fortinet FortiGate
Riskware/Yontoo
11/26/2015

G Data
Win32.Application.Agent.AWEQ89
15.11.25

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
14.0.0.1064

McAfee
Artemis!4EF28B83561A
5600.6570

NANO AntiVirus
Riskware.Win32.Siggen.cyptve
0.30.24.1357

Reason Heuristics
PUP.Yontoo (M)
15.11.26.3

SUPERAntiSpyware
Adware.Yontoo
9485

Total Defense
Win32/Yontoo.V
37.1.62.1

Trend Micro House Call
TROJ_GEN.R0C1H05AO15
7.2.330

Trend Micro
ADW_YONTOO
10.465.26

VIPRE Antivirus
Yontoo
27812

File size:
774.3 KB (792,864 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:\users\{user}\appdata\local\temp\yontooieclient.dll

Digital Signature
Signed by:
Yontoo LLC

Authority:
GoDaddy.com, Inc.

Valid from:
5/9/2011 12:10:37 PM

Valid to:
5/9/2012 12:10:37 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:
3/12/2012 12:51:24 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:TWSe8S49OLp7Y75eLuc6Hh4rwVfi6GQ+C4tfCxMvuQ9Eng:aSetp7Y7ULu3oGi6GZrf2g

Entry address:
0x47B8B

Entry point:
E9, 90, 88, 04, 00, E9, AB, BB, 00, 00, E9, 68, 1F, 03, 00, E9, 51, BA, 04, 00, E9, BC, 98, 00, 00, E9, F7, 5A, 08, 00, E9, 12, 97, 01, 00, E9, 5D, 32, 03, 00, E9, 98, FB, 04, 00, E9, E3, B7, 00, 00, E9, 1E, 7A, 07, 00, E9, 19, 0A, 03, 00, E9, 74, FC, 02, 00, E9, 4F, C9, 03, 00, E9, 7A, 4C, 01, 00, E9, 15, 50, 00, 00, E9, 30, 8A, 02, 00, E9, 8B, 53, 05, 00, E9, 26, CB, 06, 00, E9, C1, 49, 04, 00, E9, 6C, DE, 03, 00, E9, 77, 89, 08, 00, E9, 22, 00, 01, 00, E9, 9D, 1D, 01, 00, E9, D8, 58, 01, 00, E9, 43, 87...
 
[+]

Entropy:
5.6593

Developed / compiled with:
Microsoft Visual C++ 8.0 (Debug)

Code size:
586.5 KB (600,576 bytes)

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