home

setup.exe

BrowseSmart

This is the installer and setup program from the BrowseSmart branded Yontoo adware web browser extension. This adware injects various forms of advertisements in the user's web browser based on the HTML content and URLs viewed. Ad include banners, in-line context text links, coupons, and search. The program will install an auto-updating background service that will update the software with additional features. The application setup.exe by BrowseSmart has been detected as adware by 14 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.
Publisher:
BrowseSmart  (signed and verified)

MD5:
eb843c4578e89efd4063de941dd36c6c

SHA-1:
f738c0503f0a2869a909f04a70bcb06d4b23286d

SHA-256:
0522f278a3e192120b29b2f4be3e1ac9d63eb3d2ce03ebf27a3cdc6fcb17f155

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/26/2024 3:56:49 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.BrowseSmart
2014.0.3620

Comodo Security
Application.Win32.Altbrowse.AK
17455

Dr.Web
Trojan.BPlug.4
9.0.1.0353

ESET NOD32
Win32/BrowseFox
7.9183

Fortinet FortiGate
Adware/Agent
12/19/2013

K7 AntiVirus
Unwanted-Program
13.174.10548

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.4596

McAfee
Artemis!18379A354FC1
5600.7276

NANO AntiVirus
Riskware.Win32.Agent.cqvnby
0.28.0.56692

Reason Heuristics
PUP.Installer.BrowseSmart.F
14.8.7.21

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.131217

Sophos
Generic PUA BD
4.96

Trend Micro House Call
TROJ_GEN.F47V1208
7.2.353

Vba32 AntiVirus
AdWare.Agent
3.12.24.3

File size:
849.3 KB (869,704 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\setup.exe

Digital Signature
Signed by:
BrowseSmart

Authority:
VeriSign, Inc.

Valid from:
9/27/2013 2:00:00 AM

Valid to:
9/28/2015 1:59:59 AM

Subject:
CN=BrowseSmart, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=BrowseSmart, 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:
2324196045B471D3A6A37CF9331711AB

File PE Metadata
Compilation timestamp:
12/5/2009 11:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:nJRIAb6F8qWyAhDRiYwR+Q+CpL54SwxRIAb6l8P:LHWF8FyAdRiOy8SwTHWl8P

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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

http://wpc.0952.edgecastcdn.net/800952/.../setup.exe

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to wac.edgecastcdn.net  (72.21.81.13:80)

TCP (HTTP):
Connects to service.yontoo.com  (8.25.35.148:80)

TCP (HTTP):
Connects to api.yontoo.com  (8.25.35.15:80)

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