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Webfuii.OfSvc.dll

Webfuii

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

Version:
1.0.5311.18522

MD5:
34edd5882953114af8321dbed6bd5444

SHA-1:
3dcd2fe5ec2189030f2c1e963a122555d69a8e2f

SHA-256:
b0d85faef476069ac31011b83172682f9ceb1f24c0200aa4320d70eff2dc745c

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:
5/5/2024 2:41:30 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.Webfuii (M)
16.2.9.10

File size:
1 MB (1,089,816 bytes)

Product version:
1.0.5311.18522

Original file name:
Webfuii.OfSvc.dll

File type:
Dynamic link library (Win32 DLL)

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

Digital Signature
Signed by:
Webfuii

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 3:00:00 AM

Valid to:
10/8/2014 2:59:59 AM

Subject:
CN=Webfuii, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Webfuii, L=San Diego, 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:
658C92DE4B1AFFD7A1D69F49D0D049BA

File PE Metadata
Compilation timestamp:
7/17/2014 2:17:35 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
24576:6SB1OtfOwQcF5g+l9LNwMQPeeoUl0wdZ3Fn8GxtILPir:vBrLcxLNwxPeidBFn8Utim

Entry address:
0x109ECA

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:
1 MB (1,081,344 bytes)

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