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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 10 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:
1.0.5355.15798

MD5:
473aa25bf2246ddd2875c08b2899b9e9

SHA-1:
0123c8a4114b914f0484d166ad0d220bc471850b

SHA-256:
12fd3694e7fc4d39548f30e9d895ca8bc3a05bbeb9b830630aaddf0cc43ca6f4

Scanner detections:
10 / 68

Status:
Adware

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

Analysis date:
4/24/2024 2:12:37 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Kranet
7.1.1

AVG
Generic
2015.0.3363

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.1492

Dr.Web
Trojan.BPlug.206
9.0.1.05190

ESET NOD32
MSIL/BrowseFox.G potentially unwanted application
7.0.302.0

Kaspersky
not-a-virus:HEUR:AdWare.MSIL.Kranet
14.0.0.3311

Malwarebytes
PUP.Optional.Sanbreel.A
v2014.09.02.05

Panda Antivirus
Trj/Chgt.E
14.09.02.05

Qihoo 360 Security
HEUR/Malware.QVM23.Gen
1.0.0.1015

Reason Heuristics
Adware.Yontoo.ClearThink.T
14.9.2.16

File size:
786.7 KB (805,616 bytes)

Product version:
1.0.5355.15798

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 10:00:00 AM

Valid to:
8/6/2015 9:59:59 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:
8/30/2014 7:46:50 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
24576:KqlebNbeG8YkRqNnvhzR8ApCp5o0UPUcdTA:KqEbNKtsvj8ApCp5cXm

Entry address:
0xC48DA

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:
7.3056

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

Code size:
778.5 KB (797,184 bytes)

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