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clearthink.ofsvc.dll

esuack

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

Version:
1.0.5539.16895

MD5:
76e218db79c134610b67fa2fbd5009e5

SHA-1:
5cd129e0ef3fc92ed0d81b5bedaf7fae5665f729

SHA-256:
e1e1064ed38ca626267e93355a1c93b97c1af17f1db3bdbdae70669ff006d64d

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:
12/23/2024 11:23:26 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.3.22

File size:
2.4 MB (2,480,408 bytes)

Product version:
1.0.5539.16895

Original file name:
ClearThink.OfSvc2015030217.dll

File type:
Dynamic link library (Win32 DLL)

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

Digital Signature
Signed by:
esuack

Authority:
VeriSign, Inc.

Valid from:
4/21/2014 7:00:00 PM

Valid to:
4/22/2015 6:59:59 PM

Subject:
CN=esuack, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=esuack, 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:
3E15E68E1D2AB32D262B79022F0F0D6E

File PE Metadata
Compilation timestamp:
3/2/2015 12:23:19 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x25D64E

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:
2.4 MB (2,471,936 bytes)

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