home

setup.exe

Mega Browse

This is the installer and setup program from the Mega Browse 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 Mega Browse has been detected as adware by 18 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:
Mega Browse  (signed and verified)

MD5:
7989f928772a88f7a4d5fcdda89ec5d8

SHA-1:
fa5aed655b675cbe13b9280d6052cc660e88dd69

Scanner detections:
18 / 68

Status:
Adware

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

Analysis date:
5/19/2024 1:48:14 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Agent
7.1.1

avast!
Win32:Adware-gen [Adw]
2014.9-140527

Comodo Security
Application.Win32.Altbrowse.AK
18075

Dr.Web
Trojan.BPlug.28
9.0.1.0147

ESET NOD32
Win32/BrowseFox (variant)
8.9656

IKARUS anti.virus
not-a-virus:AdWare.Win32.Agent
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.176.11711

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.3802

Malwarebytes
PUP.Optional.MegaBrowse.A
v2014.05.27.03

McAfee
Artemis!7989F928772A
5600.7117

NANO AntiVirus
Riskware.Win32.Agent.cqycvd
0.28.0.59048

Quick Heal
AdWare.Agent.ahbx (Not a Virus)
5.14.12.00

Reason Heuristics
PUP.Installer.MegaBrowse.F
14.5.27.15

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14525

Sophos
Generic PUA OF
4.98

Trend Micro House Call
TROJ_GEN.F47V0314
7.2.147

Vba32 AntiVirus
AdWare.Agent
3.12.26.0

VIPRE Antivirus
Yontoo
28164

File size:
2.8 MB (2,926,224 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Documents and Settings\{user}\Local settings\temporary internet files\content.ie5\{random}\setup.exe

Digital Signature
Signed by:
Mega Browse

Authority:
VeriSign, Inc.

Valid from:
1/21/2014 5:00:00 PM

Valid to:
1/22/2015 4:59:59 PM

Subject:
CN=Mega Browse, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Mega Browse, 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:
151F3F44EFA5ADB264205FBF9F779B3D

File PE Metadata
Compilation timestamp:
12/5/2009 3:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:vaWF85AdRiOPykz0gVjz5VwZZn2sM4DASWCfW1I+fmBInlmjFrXWl80:vaWu5WR/jz0Ejz5VCtbS1I+uil8TWO0

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...
 
[+]

Entropy:
7.9987

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://install-cdn.megabrowse.biz/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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