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ClearThink.PurBrowseG.dll

ClearThink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module ClearThink.PurBrowseG.dll by ClearThink has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
ClearThink  (signed and verified)

Version:
1.0.5401.883

MD5:
882af8ba1d386a2927713c806d878efb

SHA-1:
d61a631f08ee0b908e4f3e1fc028db67f708a106

SHA-256:
4e18d629def88c19f4d65ec912c1f17c3da56aa08a51dbc402499038f47e2616

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
5/26/2024 8:14:55 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.12.11

File size:
933.7 KB (956,144 bytes)

Product version:
1.0.5401.883

Original file name:
ClearThink.PurBrowseG.dll

File type:
Dynamic link library (Win32 DLL)

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

Digital Signature
Signed by:
ClearThink

Authority:
VeriSign, Inc.

Valid from:
10/9/2014 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:
59B72B1DB71CE323997B1EAF80E12AAE

File PE Metadata
Compilation timestamp:
10/15/2014 10:29:33 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0xE934E

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, 02, 00, 00, 00, 73, 00, 00, 00, 90, 93, 0E, 00, 90, 75, 0E, 00, 52, 53, 44, 53, 68, 0B, 95, BD, 8F, 2F, 34, 46, AF, 7C, 84, A8, A2, AA, 17, 52, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 77, 70, 33, 64, 63, 6C, 73, 65, 2E, 76, 62, 73, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

Entropy:
7.1698

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

Code size:
925.5 KB (947,712 bytes)

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