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utilbrowsefox.exe

Browse Fox

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utilbrowsefox.exe by Browse Fox has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “Util BrowseFox”.
Publisher:
Browse Fox  (signed and verified)

Version:
1.0.5371.18843

MD5:
9473659d4ec85d05c5cab085d7708f9d

SHA-1:
49f537b6bde1eb8d28c79217de9ed52cffad2317

SHA-256:
74f755004ab8f50f8f043bef2146d15f18a8034d0a26ab9906075ed827ecdf7a

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:
4/29/2024 10:03:57 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.2.14

File size:
315.7 KB (323,312 bytes)

Product version:
1.0.5371.18843

Original file name:
BrowseFox.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\browsefox\bin\utilbrowsefox.exe

Digital Signature
Signed by:
Browse Fox

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 2:00:00 AM

Valid to:
9/5/2015 1:59:59 AM

Subject:
CN=Browse Fox, O=Browse Fox, L=Santa Monica, 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:
01384FB7929C948C4A9ACD0BC2F3E8C0

File PE Metadata
Compilation timestamp:
9/15/2014 1:28:22 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

Entry address:
0x4EBA2

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, 02, 00, 10, 00, 00, 00, 20, 00, 00, 80, 18, 00, 00, 00, D8, 02, 00, 80, 00, 00...
 
[+]

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

Code size:
307 KB (314,368 bytes)

Service
Display name:
Util BrowseFox

Type:
Win32OwnProcess


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