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browsestudiouninstall.exe

BrowseStudio

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application browsestudiouninstall.exe by BrowseStudio has been detected as adware by 8 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. This is the uninstaller utility registered in the Windows Control Panel for the program BrowseStudio by BrowseStudio. 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)

MD5:
a072c83a271e41118c4e3014315d8f1b

SHA-1:
91b6affa0596f7c42f16c5d83e6592f07f10ae51

SHA-256:
c8137af676c8f8b4ecee2129320f1f5e98721e696455734f8ef4a6b7fd1819d2

Scanner detections:
8 / 68

Status:
Adware

Explanation:
This is the installer/uninstaller for the Yontoo branded (browsestudio) adware program. The main protgram is desigend to deliver advertisements to the user's web browser through injection.

Analysis date:
4/18/2024 9:00:56 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
Adware/BrowseFox.aol
7.11.188.28

avast!
BrowseFox-D [PUP]
141119-1

AVG
Generic
2015.0.3283

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141121

ESET NOD32
Win32/BrowseFox.C potentially unwanted application
7.0.302.0

Qihoo 360 Security
Win32/Virus.Adware.240
1.0.0.1015

Reason Heuristics
PUP.BrowseStudio.V
14.11.21.23

VIPRE Antivirus
Threat.4150696
34948

File size:
253 KB (259,104 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Program Files\browsestudio\browsestudiouninstall.exe

Digital Signature
Signed by:
BrowseStudio

Authority:
VeriSign, Inc.

Valid from:
9/1/2014 8:00:00 PM

Valid to:
9/2/2015 7:59:59 PM

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:
12/5/2009 5:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:SZ+11ChbHW2jy/1RWBT5SwueEwZm/G/HcnE:Udjs1s15Kp/G/8E

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.8703

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

Program Uninstaller
Program name:
BrowseStudio

Display publisher:
BrowseStudio

Display version:
2014.11.20.202202

Uninstall string:
C:\Program Files (x86)\BrowseStudio\BrowseStudiouninstall.exe


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