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ClearThink.PurBrowse.dll

ClearThink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module ClearThink.PurBrowse.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:
1.0.5381.41904

MD5:
7525163d893610964ad7beb4b864cff0

SHA-1:
92049d5a7ca204a17c51a6d29cd72024168498ea

SHA-256:
3bb002a70aeac274a264ea0781b4b5f663325f747680f2b19b2bf1b1c42d72f8

Scanner detections:
11 / 68

Status:
Adware

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

Analysis date:
4/19/2024 10:14:47 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.175.218

AVG
Generic
2015.0.3335

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.14101

Dr.Web
Trojan.BPlug.232
9.0.1.05190

ESET NOD32
MSIL/BrowseFox.G potentially unwanted application
7.0.302.0

Kaspersky
not-a-virus:HEUR:AdWare.MSIL.Kranet
14.0.0.3170

Malwarebytes
PUP.Optional.Sanbreel.A
v2014.10.01.12

McAfee
BrowseFox.a
5600.6991

Reason Heuristics
Adware.Yontoo.ClearThink.T
14.10.1.0

Sophos
Browse Fox
4.98

VIPRE Antivirus
Threat.4741131
33520

File size:
833.2 KB (853,232 bytes)

Product version:
1.0.5381.41904

Original file name:
ClearThink.PurBrowse.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

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

Digital Signature
Signed by:
ClearThink

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 5:30:00 AM

Valid to:
8/6/2015 5:29:59 AM

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:
9/26/2014 5:47:06 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
24576:jWI5l+Avyy9oYdVkPY+biEMAWXCTqBPRs:jWyl+A6MkP1WfvXC4Pa

Entry address:
0xD0346

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:
7.3849

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

Code size:
825 KB (844,800 bytes)

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