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browsestudiobho.dll

BrowseStudio

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module browsestudiobho.dll by BrowseStudio has been detected as adware by 20 anti-malware scanners. It is installed within the context of Internet Explore as a BHO (Browser Helper Object) under the name ‘BrowseStudio’. This file is typically installed with the program BrowseStudio by Yontoo Technology, Inc. which is a potentially unwanted software program. 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:
BrowseStudio  (signed and verified)

Product:
BrowseStudio

Version:
1.0.0.3

MD5:
e9c3f0020ef4adb815301c6793c6f670

SHA-1:
d8d9c5cc0b75e16e42ac4021080a9898289b0c60

SHA-256:
9d201033b4494b1e862b1e1085dbac28701727180e813e2dc734694d71964251

Scanner detections:
20 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
1/9/2025 6:07:47 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
ADWARE/BrowseFox.Gen2
7.11.185.228

AVG
Adware BrowseFox.F
2014.0.4189

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141117

Clam AntiVirus
Win.Adware.Agent-19674
0.98/21411

Comodo Security
Application.Win32.BrowseFox.JM
20084

Dr.Web
Trojan.BPlug.167
9.0.1.05190

ESET NOD32
Win32/BrowseFox.O potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/BrowseFox
11/17/2014

K7 AntiVirus
Unwanted-Program
13.185.14021

Malwarebytes
PUP.Optional.BrowseStudio.A
v2014.11.17.08

McAfee
BrowseFox-FRR
5600.6944

NANO AntiVirus
Trojan.Win32.BPlug.dfohwl
0.28.6.63362

Qihoo 360 Security
HEUR/QVM30.1.Malware.Gen
1.0.0.1015

Reason Heuristics
Adware.Yontoo.BHO.P
14.11.21.23

Sophos
Generic PUA GL
4.98

Trend Micro House Call
Suspicious_GEN.F47V1117
7.2.325

Vba32 AntiVirus
AdWare.LinkSwift
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
34722

Zillya! Antivirus
Backdoor.PePatch.Win32.48226
2.0.0.1982

File size:
244.7 KB (250,608 bytes)

Product version:
1.0.0.3

Copyright:
(c) BrowseStudio. All rights reserved.

Original file name:
BrowseStudioIEClient.dll

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\Program Files\browsestudio\browsestudiobho.dll

Digital Signature
Signed by:
BrowseStudio

Authority:
VeriSign, Inc.

Valid from:
9/2/2014 2:00:00 AM

Valid to:
9/3/2015 1:59:59 AM

Subject:
CN=BrowseStudio, O=BrowseStudio, 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:
11AE532A33120159E1078A0D3EDE88C9

File PE Metadata
Compilation timestamp:
11/16/2014 9:40:11 PM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:xn6oqa7ZcJ83Z2qJC0SzN+3aR4id15+s+xIaIzY9RJL6H:xOa7Zce3BCR/wxI0TJLE

Entry address:
0x12854

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 41, 8D, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, 90, 30, 03, 10, E8, BD, 01, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 44, 78, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, 1C, A5, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

Internet Explorer BHO
Display name:
BrowseStudio

CLSID:
{1e9e0e98-4ab7-40b0-a0ce-69105c1b7c92}


The file browsestudiobho.dll has been discovered within the following program.

BrowseStudio  by Yontoo Technology, Inc.
BrowseStudio is an adware program (supported by various types of advertising) that is usually bundled by third party installers and download managers.
browsestudio.com/support
81% remove it
 
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The file browsestudiobho.dll has been seen being distributed by the following URL.

http://install-cdn.browsestudio.com/bed?bet=3

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