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 15 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:
9c7ce7bb2a43d9ec2a996b3f79b68146

SHA-1:
aee02aed763e0b573694cdb2abbb25fde8c30d1e

SHA-256:
e60cf1f5cc4b0426a104da701c941bdc353a4f28d9fa8075394f832acbe54b46

Scanner detections:
15 / 68

Status:
Adware

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

Analysis date:
11/27/2024 3:52:15 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Agent
7.1.1

Comodo Security
Application.Win32.Altbrowse.AK
17960

Dr.Web
Trojan.BPlug.28
9.0.1.079

ESET NOD32
Win32/BrowseFox (variant)
8.9565

Fortinet FortiGate
Adware/Agent
3/20/2014

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.4143

Malwarebytes
PUP.Optional.MegaBrowse.A
v2014.03.20.11

McAfee
Artemis!9C7CE7BB2A43
5600.7186

NANO AntiVirus
Riskware.Win32.Agent.cqycvd
0.28.0.58491

Reason Heuristics
PUP.Installer.MegaBrowse.F
14.3.20.11

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14318

Sophos
Generic PUA AA
4.98

Trend Micro House Call
TROJ_GEN.F47V0319
7.2.79

Vba32 AntiVirus
AdWare.Agent
3.12.24.3

VIPRE Antivirus
Yontoo
27562

File size:
2.8 MB (2,926,176 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:
Mega Browse

Authority:
VeriSign, Inc.

Valid from:
1/22/2014 12:00:00 AM

Valid to:
1/22/2015 11:59:59 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 10:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:fEWF85AdRiOD6r/VIz0gnLmoDucbqr8ld51He5OF1voZMEmN2wbUPfFCA8LSamXZ:fEWu5WR/mr/yz0wp4qd51Hey11E8QPfv

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://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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