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ClearThink.BOAS.dll

ClearThink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module ClearThink.BOAS.dll by ClearThink has been detected as adware by 11 anti-malware scanners. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
ClearThink  (signed and verified)

Version:
1.0.5375.33123

MD5:
9c4c776fe2291814c1ef2e3be2329fe8

SHA-1:
0be7c56c47f808e1a23266d8e6844ad106d64f53

SHA-256:
b1d064794540b9fed97b41f5cd3b58d3c97b13db26b35492a8d4e560972ffcd8

Scanner detections:
11 / 68

Status:
Adware

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

Analysis date:
4/18/2024 11:11:07 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.173.134

AVG
Generic
2015.0.3345

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.14920

ESET NOD32
MSIL/BrowseFox (variant)
8.10444

Kaspersky
not-a-virus:HEUR:AdWare.MSIL.Kranet
14.0.0.3221

Malwarebytes
PUP.Optional.Sanbreel.A
v2014.09.20.08

McAfee
BrowseFox
5600.7001

Panda Antivirus
Trj/Chgt.G
14.09.20.08

Reason Heuristics
PUP.ClearThink.O
14.9.20.20

Sophos
Browse Fox
4.98

VIPRE Antivirus
Yontoo
33290

File size:
2.7 MB (2,815,216 bytes)

Product version:
1.0.5375.33123

Original file name:
ClearThink.BOAS.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\clearthink\bin\plugins\clearthink.boas.dll

Digital Signature
Signed by:
ClearThink

Authority:
VeriSign, Inc.

Valid from:
8/4/2014 8:00:00 PM

Valid to:
8/5/2015 7:59:59 PM

Subject:
CN=ClearThink, O=ClearThink, L=Santa Monica, 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:
1200063ED04B1DA36F7FE204B3DD8617

File PE Metadata
Compilation timestamp:
9/19/2014 3:24:21 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
49152:FISGbH0PErdiaEuSEbuJDDiFkYF5Q9vLfNNDb1+Za231E2MqSn44:FISCDrYcSBJn9bP1Qam1EjqS44

Entry address:
0x2AF342

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
7.9125

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
2.7 MB (2,806,784 bytes)

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