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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 9 anti-malware scanners. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
BrowseMark  (signed and verified)

Version:
1.0.5416.39223

MD5:
a1c43fd2d0b677871634d6b0dc0a4e52

SHA-1:
22c415ed04b89c5d22ddc57cb42eacc524aeebdd

SHA-256:
2d178ea3d462d37c3d26699b9dd1bcd7589bd8a2e4d63c3f397b5adb4ac7ffe6

Scanner detections:
9 / 68

Status:
Adware

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

Analysis date:
4/26/2024 3:03:56 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
Bromrak
2015.0.3305

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141031

ESET NOD32
MSIL/BrowseFox (variant)
8.10648

F-Prot
W32/A-44ec90a9
v6.4.7.1.166

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.8.3.0

Malwarebytes
PUP.Optional.BrowseMark
v2014.10.31.04

Reason Heuristics
Adware.Yontoo.BrowseMark.S
14.10.31.4

Sophos
Browse Fox
4.98

VIPRE Antivirus
Yontoo
34392

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

Product version:
1.0.5416.39223

Original file name:
BrowseMark.GCUpdate.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

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

Digital Signature
Signed by:
BrowseMark

Authority:
VeriSign, Inc.

Valid from:
2/4/2014 1:00:00 PM

Valid to:
2/5/2015 12:59:59 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:
10/31/2014 6:47:33 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
24576:Flv49BYYJoJGYTsFrW1QDWzoqh3Lr4VwaZgF2yro3pJNlRNYmzQmc6O1OrF0pKQY:UqWaaZgUbJNlZI6OQrFnWQkfMyw

Entry address:
0x192582

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, C4, 25, 19, 00, C4, 07, 19, 00, 52, 53, 44, 53, D4, 3E, 28, 74, 18, 8B, FD, 47, BB, 4F, CC, 01, 7D, 17, C3, 6B, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 77, 79, 33, 6A, 30, 30, 6C, 78, 2E, 79, 34, 6E, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

Entropy:
7.3207

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

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

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