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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:
30b2c946fa34f6aa7b9e5e562347a331

SHA-1:
56e497b4169a1be16253a8069f5b8c44038cc788

SHA-256:
f2ffbe6a45343bc721c67614376aa15a9427ce42357e209f3e531a67a987a06c

Scanner detections:
20 / 68

Status:
Adware

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

Analysis date:
1/10/2025 3:15:12 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CS
801

Avira AntiVirus
Adware/BrowseFox.aol
7.11.188.212

AVG
BrowseFox.F
2015.0.3279

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141125

Bitdefender
Adware.SwiftBrowse.CS
1.0.20.1645

Comodo Security
Application.Win32.BrowseFox.JM
20196

Dr.Web
Trojan.BPlug.167
9.0.1.0329

Emsisoft Anti-Malware
Adware.SwiftBrowse.CS
8.14.11.25.03

ESET NOD32
Win32/BrowseFox (variant)
8.10779

F-Secure
Adware.SwiftBrowse.CS
11.2014-25-11_3

G Data
Adware.SwiftBrowse.CS
14.11.24

K7 AntiVirus
Trojan
13.185.14134

Malwarebytes
PUP.Optional.BrowseStudio.A
v2014.11.25.03

McAfee
BrowseFox-FRR
5600.6935

MicroWorld eScan
Adware.SwiftBrowse.CS
15.0.0.987

NANO AntiVirus
Trojan.Win32.BPlug.dfohwl
0.28.6.63726

nProtect
Adware.SwiftBrowse.CS
14.11.25.01

Qihoo 360 Security
Win32/Virus.Adware.240
1.0.0.1015

Reason Heuristics
PUP.BHO.BrowseStudio.P
14.11.25.15

Vba32 AntiVirus
AdWare.SwiftBrowse
3.12.26.3

File size:
244.7 KB (250,608 bytes)

Product version:
1.0.0.3

Copyright:
(c) BrowseStudio. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

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

Digital Signature
Signed by:
BrowseStudio

Authority:
VeriSign, Inc.

Valid from:
9/2/2014 4:00:00 AM

Valid to:
9/3/2015 3:59:59 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:
11/24/2014 10:33:25 PM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:Tn6oqa7ZcJ83Z2qJC0SzN+3aR4id15+s+xIaIwYvwPLju:TOa7Zce3BCR/wxIzIPLy

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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