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ClearThink.GCUpdate.dll

ClearThink

This is the Google Chrome extension manager/updater for the Yontoo ClearThink branded web browser plugin which injects banners, text-link and popup ads in the Chorme browser. The module ClearThink.GCUpdate.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:
1.0.5377.11551

MD5:
abc507d3b637bb3a80c5239d9236dddc

SHA-1:
2f371a595dfb128821780417266cf31a72249356

SHA-256:
43d87d2891ef1cbadbc639d9dd0a0962e56feae29e410098f8b73e2f750472ef

Scanner detections:
11 / 68

Status:
Adware

Explanation:
Part of the Yontoo distributed ad-supported web browser extension for Chrome.

Analysis date:
4/19/2024 6:59:23 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.173.140

AVG
Generic
2015.0.3344

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.14922

ESET NOD32
MSIL/BrowseFox (variant)
8.10446

Kaspersky
not-a-virus:HEUR:AdWare.MSIL.Kranet
14.0.0.3213

McAfee
BrowseFox
5600.7000

Panda Antivirus
Trj/Chgt.G
14.09.22.10

Qihoo 360 Security
HEUR/Malware.QVM23.Gen
1.0.0.1015

Reason Heuristics
Adware.Yontoo.ClearThink.S
14.9.22.10

Sophos
Browse Fox
4.98

VIPRE Antivirus
Yontoo
33318

File size:
913.7 KB (935,664 bytes)

Product version:
1.0.5377.11551

Original file name:
ClearThink.GCUpdate.dll

File type:
Dynamic link library (Win32 DLL)

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

Digital Signature
Signed by:
ClearThink

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 2:00:00 AM

Valid to:
8/6/2015 1:59:59 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:
9/21/2014 9:25:15 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
24576:YGvq0kbhe3wEo7YtIMucjqowROE1noIqlins76jtIdIs:YG6tutIMVjqowRfoIqOjtY

Entry address:
0xE441A

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...
 
[+]

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

Code size:
905.5 KB (927,232 bytes)

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