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browsefox_1208-784bb9a0.exe

Browse Fox

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application browsefox_1208-784bb9a0.exe by Browse Fox has been detected as adware by 9 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. 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. It is also typically executed from the user's temporary directory.
Publisher:
Browse Fox  (signed and verified)

MD5:
458ccfa013e82ccfa949b882b7986426

SHA-1:
ffcba83758f2c9be966e54b7286d52fb2a07e981

SHA-256:
0b9c71887d0457179e26fcd2826ca4de5502b65e71e1ede69ea753f4df26197c

Scanner detections:
9 / 68

Status:
Adware

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

Analysis date:
4/25/2024 10:41:28 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.Skodna.BrowseFox
2014.0.3618

Dr.Web
Adware.Searcher.2574
9.0.1.0356

ESET NOD32
Win32/BrowseFox
7.9120

herdProtect (fuzzy)
variant of webconnect.exe (Adware)
2013.12.25.1

Malwarebytes
PUP.Optional.BrowseFox.A
v2013.12.22.01

Reason Heuristics
PUP.BrowseFox.X
14.8.7.21

Rising Antivirus
NS:PUA.SilenceInstaller!1.9DDF
23.00.65.131220

SUPERAntiSpyware
Trojan.Agent/Gen-BHO
10893

VIPRE Antivirus
Yontoo
23934

File size:
171.2 KB (175,304 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\browsefox_1208-784bb9a0.exe

Digital Signature
Signed by:
Browse Fox

Authority:
VeriSign, Inc.

Valid from:
7/29/2013 9:00:00 PM

Valid to:
7/30/2014 8:59:59 PM

Subject:
CN=Browse Fox, OU=Digital ID Class 3 - Microsoft Software Validation v2, 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:
3DA9F504A9E9628C2224F40C9EA90C86

File PE Metadata
Compilation timestamp:
12/5/2009 8:50:41 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:uLk395hYXJsCRnTttaSr19anH7l1m/GqMHJGULvkG:uQqDdBtaS5YnH7nm/G/HcfG

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, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
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Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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