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browsestudiouninstaller.exe

BrowseStudio

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

Version:
1.0.0.0

MD5:
4f09b4b560aee139fbcb4219307685c3

SHA-1:
ebc292f43a005586e4869a6f2a195a3338ba2728

SHA-256:
53ef4dfe8d87f8bd031abda3a498a488138d0ddea101eda3f6f5a3bd3cd9a9c4

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 10:57:02 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.BrowseSt (M)
16.5.11.20

File size:
547.2 KB (560,368 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:\users\{user}\downloads\browsestudiouninstaller.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:
4/10/2015 5:30:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:nPzDmjZCkD5kpB043V0XJGnrhcdqpLhTvcrC:u8p+DJGnrRpLhzUC

Entry address:
0x86C10

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:
6.1482

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

Code size:
531.5 KB (544,256 bytes)

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

http://install.browsestudio.com/ud

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