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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 16 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:
22010145a3cdfa7e57e505a0e118f5a7

SHA-1:
26ebf32250d6afdc540e4373027d31ea7731ac3a

SHA-256:
4f02643a8e9d452eee0eed84dc9ab64893d0ae26c0d12ec45fb0f8f117d09ecb

Scanner detections:
16 / 68

Status:
Adware

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

Analysis date:
5/29/2024 3:54:44 AM UTC  (today)

Scan engine
Detection
Engine version

Comodo Security
Application.Win32.Altbrowse.AK
17943

Dr.Web
Trojan.BPlug.10
9.0.1.077

ESET NOD32
Win32/BrowseFox (variant)
8.9550

Fortinet FortiGate
Adware/Agent
3/18/2014

IKARUS anti.virus
not-a-virus:AdWare.Win32.Agent
t3scan.2.2.29

K7 AntiVirus
Unwanted-Program
13.176.11451

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.4151

Malwarebytes
PUP.Optional.MegaBrowse.A
v2014.03.18.08

McAfee
Artemis!22010145A3CD
5600.7187

NANO AntiVirus
Riskware.Win32.Agent.cqycvd
0.28.0.58394

Reason Heuristics
PUP.Installer.MegaBrowse.F
14.3.19.0

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14316

Sophos
Generic PUA JP
4.98

Trend Micro House Call
TROJ_GEN.F47V0311
7.2.77

Vba32 AntiVirus
AdWare.Agent
3.12.24.3

VIPRE Antivirus
Yontoo
27462

File size:
2.7 MB (2,839,936 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 1:00:00 AM

Valid to:
1/23/2015 12:59:59 AM

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 11:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:/iWF85AdRiO31bz0gFBf2sVleje5dwItC7XrkGuntE5Iz5OqvebWl8L:6Wu5WR/31z0SFllAGdwtruS5Itv6WOL

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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