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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 14 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:
1.0.5371.6254

MD5:
c6eaf36be64ceffaf3ee017be9df07e5

SHA-1:
ff8ccf56a552a151c7f139be410624adc754c3da

SHA-256:
40d64a6bf6be693583cd9aa0995dcfd5adf3de2fa2a089dde2144e6071cbb751

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/26/2024 3:51:09 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.173.16

AVG
Generic
2015.0.3346

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.14919

Comodo Security
ApplicUnwnt
19547

ESET NOD32
MSIL/BrowseFox (variant)
8.10435

K7 AntiVirus
Trojan
13.183.13407

Kaspersky
not-a-virus:HEUR:AdWare.MSIL.Kranet
14.0.0.3225

Malwarebytes
PUP.Optional.Sanbreel.A
v2014.09.19.10

McAfee
Artemis!C6EAF36BE64C
5600.7002

Panda Antivirus
Trj/Chgt.F
14.09.19.10

Qihoo 360 Security
HEUR/Malware.QVM23.Gen
1.0.0.1015

Reason Heuristics
PUP.ClearThink.O
14.9.15.10

Sophos
Generic PUA PP
4.98

VIPRE Antivirus
Yontoo
33220

File size:
2.7 MB (2,816,240 bytes)

Product version:
1.0.5371.6254

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:
8/5/2014 1:00:00 AM

Valid to:
8/6/2015 12:59:59 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:
9/15/2014 5:28:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
49152:ifLoCRZKFT47Pebe7QfLeDgvRDsbid2S51zT+UQ2HDWpkU3YRuDdJA8TQ/qiGhyT:ifLn7H7M6DgpDIurjTVHqecDdNxCT

Entry address:
0x2AF72A

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:
7.9121

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

Code size:
2.7 MB (2,807,808 bytes)

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