updatebrownbark.exe

brown bark

Part of the Yontoo web browser plugin (delivers advertisements to the web browser in the form of injected banners, text-links, popups, etc.) the updater mechanism for brown bark will automatically keep the extension patched by downloaded new functionality which is auto-enabled by default. The application updatebrownbark.exe by brown bark has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “Update brown bark”.
Publisher:
brown bark  (signed and verified)

Version:
1.0.5408.13500

MD5:
ef6a0d576851ea133cc6bc6ba0fe380e

SHA-1:
72e2fee17ce60feb1f899460454d1eca8e5c510c

SHA-256:
db57ebce178be98b851740eb8423d48ba294f5cae696f7f4a3da2a9ca1d2f53d

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Part of the Yontoo adware web browser extension update process.

Analysis date:
5/21/2024 9:52:55 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.15.20

File size:
511.7 KB (524,016 bytes)

Product version:
1.0.5408.13500

Original file name:
brownbark.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\brown bark\updatebrownbark.exe

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:
10/22/2014 1:30:04 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x7FA5E

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, 02, 00, 00, 00, 5C, 00, 00, 00, A0, FA, 07, 00, A0, DC, 07, 00, 52, 53, 44, 53, 39, 4F, C4, 80, A3, A4, E4, 4E, AA, F6, FD, 67, C8, 31, 88, 65, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 65, 76, 67, 6D, 74, 33, 61, 34, 2E, 7A, 6F, 31, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

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

Code size:
503 KB (515,072 bytes)

Service
Display name:
Update brown bark

Type:
Win32OwnProcess


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