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browsestudioun.exe

BrowseStudio

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application browsestudioun.exe by BrowseStudio has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is the uninstaller utility registered in the Windows Control Panel for the program BrowseStudio by BrowseStudio. The file has been seen being downloaded from install.browsestudio.com.
Publisher:
BrowseStudio  (signed and verified)

Version:
1.0.0.0

MD5:
10f8ba2231c8abd38e390233b0373851

SHA-1:
2532985e23418fcc62672094c71280229e49f6d5

SHA-256:
0270c43bbabd7484fd015257f131b63a1b282c2643dd06ca8a01d7a462f38bd5

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
11/5/2024 10:59:47 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.BrowseStudio (M)
16.2.23.2

File size:
536.7 KB (549,616 bytes)

Product version:
1.0.0.0

Original file name:
BrowseStudio Uninstaller.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

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

Digital Signature
Signed by:
BrowseStudio

Authority:
VeriSign, Inc.

Valid from:
9/2/2014 1:00:00 AM

Valid to:
9/3/2015 12:59:59 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:
11/11/2014 7:22:35 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:rPzDqj93uGitaTRw11Ao190tmFiacUKbNK87pthhvdpCx:Katf8Ri9spthJPCx

Entry address:
0x84322

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, 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, 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...
 
[+]

Entropy:
6.1127

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

Code size:
521 KB (533,504 bytes)

Program Uninstaller
Program name:
BrowseStudio

Display publisher:
BrowseStudio

Display version:
2014.11.11.092051

Uninstall string:
C:\Program Files\BrowseStudio\BrowseStudioUn.exe REP_


The file browsestudioun.exe has been seen being distributed by the following URL.

http://install.browsestudio.com/ud

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