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Whilokii.BOAS.dll

Whilokii

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

Version:
1.0.5395.15905

MD5:
20ce84abc2c4b0e12681f8095c5259fc

SHA-1:
e99bf0b4e5d2a01244a03261a8b3fa1883f7328b

SHA-256:
526e1d3de109c2c955201656e558c5ded12ea7bd3d87525ed02a88890fbb6e5b

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 1:21:12 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.Whilokii (M)
16.2.13.5

File size:
2.7 MB (2,815,256 bytes)

Product version:
1.0.5395.15905

Original file name:
Whilokii.BOAS.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\whilokii\bin\plugins\whilokii.boas.dll

Digital Signature
Signed by:
Whilokii

Authority:
VeriSign, Inc.

Valid from:
9/18/2013 7:00:00 PM

Valid to:
9/19/2015 6:59:59 PM

Subject:
CN=Whilokii, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Whilokii, 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:
5D49818D94FEA0AEA7D9B885C9BACBD7

File PE Metadata
Compilation timestamp:
10/9/2014 4:50:36 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
49152:03sxBD+PZMnx9d0ELWbvy05G3NmTPOGUg7l+M0JfXwUdBrGAIlcMXwc:03s/CZMnTd0uW+3d8POGU0lG1BrGAO

Entry address:
0x2AF316

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...
 
[+]

Entropy:
7.9122

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

Code size:
2.7 MB (2,806,784 bytes)

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