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BrowseMark.GCUpdate.dll

BrowseMark

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

Version:
1.0.5419.26681

MD5:
9b363c1a028fc48787d4c5c84f8c9d7e

SHA-1:
c918e6db758ab9c4312f8e8125491590bd61bdf2

SHA-256:
acfc497a0a119b9a81127ca1f01ba9210a47b0cccf526d55bb5125f1b684de66

Scanner detections:
1 / 68

Status:
Adware

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

Analysis date:
5/10/2024 12:34:24 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.7.2

File size:
1.6 MB (1,648,928 bytes)

Product version:
1.0.5419.26681

Original file name:
BrowseMark.GCUpdate.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\browsemark\bin\plugins\browsemark.gcupdate.dll

Digital Signature
Signed by:
BrowseMark

Authority:
VeriSign, Inc.

Valid from:
2/3/2014 6:00:00 PM

Valid to:
2/4/2015 5:59:59 PM

Subject:
CN=BrowseMark, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=BrowseMark, 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:
61D3176BC90758B1B3F2AF5F8E4B7075

File PE Metadata
Compilation timestamp:
11/2/2014 4:49:29 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x192602

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, 6F, 00, 00, 00, 44, 26, 19, 00, 44, 08, 19, 00, 52, 53, 44, 53, B3, CB, 20, E7, CC, 60, 7F, 4A, AE, 1C, BF, 9B, 51, 21, 92, D5, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 61, 71, 6E, 79, 6B, 6E, 64, 79, 2E, 6D, 70, 79, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

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

Code size:
1.6 MB (1,640,448 bytes)

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