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Desktop.OS.dll

Desktop

Yontoo LLC

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module Desktop.OS.dll by Yontoo has been detected as adware by 8 anti-malware scanners.
Publisher:
Yontoo LLC  (signed and verified)

Product:
Desktop

Description:
VGCDesktop.OS

Version:
1.0.0.0

MD5:
c7f336bf9e38a763598b7df3222975a2

SHA-1:
36031587696ea0d420cc3f41b843d01d7040f23b

SHA-256:
6083b358bde542a74b7f0471a145c26559b4239d22cf42b4177d47bcded29d5e

Scanner detections:
8 / 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:
4/26/2024 2:55:49 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
AdInject.Yontoo
2017.0.2838

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Adware.Plugin.172
9.0.1.040

McAfee
Artemis!5CA1D935D6BD
5600.6494

Reason Heuristics
PUP.Yontoo (M)
16.2.9.17

Trend Micro House Call
TROJ_GEN.R047H05CA15
7.2.40

Trend Micro
TROJ_SPNV.03J713
10.465.09

VIPRE Antivirus
Yontoo
39048

File size:
60.8 KB (62,240 bytes)

Product version:
1.0.0.0

Original file name:
Desktop.OS.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\users\{user}\desktop.os.dll

Digital Signature
Signed by:
Yontoo LLC

Authority:
VeriSign, Inc.

Valid from:
10/24/2012 5:30:00 AM

Valid to:
12/24/2013 5:29:59 AM

Subject:
CN=Yontoo LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Yontoo LLC, L=Carlsbad, 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:
4A49FB7E6B0BCF398A1ACF39EA80D982

File PE Metadata
Compilation timestamp:
6/15/2013 12:05:40 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
11.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
1536:bxbH3RuCTDsiXO/EXGQrJUAIm9IsLQZ8Bw5YbmLRU:b50/EXG0+AIm9IsBKLRU

Entry address:
0xF13E

Entry point:
FF, 25, 00, 20, 00, 10, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
5.9473

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

Code size:
52.5 KB (53,760 bytes)

Remove Desktop.OS.dll - Powered by Reason Core Security
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