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webporpoise.OfSvc.dll

Webporpoise

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

Version:
1.0.5417.35773

MD5:
eb688ed76eba9a29346953ba5b984b4b

SHA-1:
2e456b375035aba2e9fe1610b70a2e8484ab0a91

SHA-256:
e44d3a9f0020b5a309561750716347b21518b7da316bb1250ca0c8f1bbb3e809

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:
4/25/2024 7:27:12 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.4.3

File size:
1.4 MB (1,418,528 bytes)

Product version:
1.0.5417.35773

Original file name:
webporpoise.OfSvc.dll

File type:
Dynamic link library (Win32 DLL)

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

Digital Signature
Signed by:
Webporpoise

Authority:
VeriSign, Inc.

Valid from:
3/14/2014 1:00:00 AM

Valid to:
3/15/2015 12:59:59 AM

Subject:
CN=Webporpoise, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Webporpoise, 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:
77E73438E8DB62CBB923965C646E769F

File PE Metadata
Compilation timestamp:
10/31/2014 9:52:38 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

Entry address:
0x15A3CA

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, 01, 00, 10, 00, 00, 00, 18, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 01, 00, 00, 00, 30, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 00, 00, 00, 00, 48, 00, 00, 00, 54, C0...
 
[+]

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

Code size:
1.3 MB (1,410,048 bytes)

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