brownbark.gcupdate.dll

brown bark

This is the Google Chrome extension manager/updater for the Yontoo brown bark branded web browser plugin which injects banners, text-link and popup ads in the Chorme browser. The module brownbark.gcupdate.dll by brown bark has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
brown bark  (signed and verified)

Version:
1.0.5498.13909

MD5:
6eb1c9e50c260e4bd7cb81d28fb03a39

SHA-1:
8c240efb87412778196903581d88f1a68657d210

SHA-256:
7d2f6c58ffe640d12618acf6676b7d37d9c064fa105625b596a397c24a54773e

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Part of the Yontoo distributed ad-supported web browser extension for Chrome.

Analysis date:
5/21/2024 12:55:18 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.13.4

File size:
1.6 MB (1,648,880 bytes)

Product version:
1.0.5498.13909

Original file name:
brownbark.GCUpdate2015012015.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\brown bark\bin\plugins\brownbark.gcupdate.dll

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
8/4/2014 9:00:00 PM

Valid to:
8/5/2015 8:59:59 PM

Subject:
CN=brown bark, O=brown bark, 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:
0656C30F8D16BCF3A8FDB0181DC60FCD

File PE Metadata
Compilation timestamp:
1/20/2015 1:43:43 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x1925DE

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:
1.6 MB (1,640,448 bytes)

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