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Kozaka.BRT.Helper.exe

kozaka

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

Version:
1.0.0.0

MD5:
5be651a48ff36d7a188e83d1b8fa5fd2

SHA-1:
ed07ed53e0cca1c9c71b9b286a5ea72ec53a67a8

SHA-256:
6899b8c84479026f5ea5df8c26d969b0bbc44c0dfc0c0546d25c97e1a3bc378d

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:
4/18/2024 1:19:10 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.1.12.21

File size:
158.3 KB (162,072 bytes)

Product version:
1.0.0.0

Original file name:
Kozaka.BRT.Helper.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\kozaka\bin\kozaka.brt.helper.exe

Digital Signature
Signed by:
kozaka

Authority:
VeriSign, Inc.

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

Valid to:
10/8/2014 6:59:59 AM

Subject:
CN=kozaka, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=kozaka, 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:
1B38C0B5B092B91BC43EB30DCF78B962

File PE Metadata
Compilation timestamp:
8/18/2014 12:22:26 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

Entry address:
0x275EE

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, 02, 00, 10, 00, 00, 00, 20, 00, 00, 80, 18, 00, 00, 00, C8, 02, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 01, 00, 00, 00, 38, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 00, 00, 00, 00, 50, 00, 00, 00, 5C, 80, 02, 00, 6C, 02, 00, 00, 00, 00, 00, 00, 6C, 02, 34, 00, 00, 00, 56, 00, 53, 00, 5F, 00, 56, 00, 45, 00, 52, 00...
 
[+]

Entropy:
6.1558

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

Code size:
149.5 KB (153,088 bytes)

Windows Firewall Allowed Program
Name:
kozaka.brt.helper.exe


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