home

mxsetup.exe

Maxthon Cloud Browser

RICH MEDIA SYSTEMS INC.

The application mxsetup.exe by RICH MEDIA SYSTEMS INC has been detected as a potentially unwanted program by 16 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The installer uses the OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. The file has been seen being downloaded from maxthon.1800download.com and multiple other hosts.
Publisher:
RICH MEDIA SYSTEMS INC.  (signed and verified)

Product:
Maxthon Cloud Browser

Version:
1.0.0.0

MD5:
23879ac4752eee89a64a5b6fade264f2

SHA-1:
5bf7d87b1eb9736e70d6c4ce0bc49ff81f5164f7

SHA-256:
ed64453c47f36287ebfdd7320576c92583c928b7312d1e75ede00d88a1bee570

Scanner detections:
16 / 68

Status:
Potentially unwanted

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
10/12/2025 12:39:55 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.OpenCandy
2015.05.21

AVG
OpenCandy
2016.0.2953

Baidu Antivirus
Adware.Win32.OpenCandy
4.0.3.151018

Clam AntiVirus
Win.Trojan.Agent-855157
0.98/21511

Dr.Web
Adware.Downware.10304
9.0.1.0291

ESET NOD32
Win32/OpenCandy.C potentially unsafe (variant)
9.11661

Fortinet FortiGate
Riskware/OpenCandy
10/18/2015

G Data
Win32.Adware.OpenCandy
15.10.25

IKARUS anti.virus
AdWare.Win32.OpenCandy
t3scan.1.8.9.0

K7 AntiVirus
Trojan
13.204.15982

Malwarebytes
PUP.Optional.OpenCandy
v2015.10.18.09

McAfee
Artemis!23879AC4752E
5600.6609

NANO AntiVirus
Riskware.Win32.Downloader.dqybkl
0.30.24.1636

Panda Antivirus
PUP/OpenCandy
15.10.18.09

Reason Heuristics
PUP.RICHMEDIASYSTEMS.Installer (M)
15.10.18.9

Sophos
OpenCandy
4.98

File size:
415.7 KB (425,696 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States d'America)

Common path:
C:\users\{user}\downloads\mxsetup.exe

Digital Signature
Signed by:
RICH MEDIA SYSTEMS INC.

Authority:
Symantec Corporation

Valid from:
2/17/2015 1:00:00 AM

Valid to:
2/18/2016 12:59:59 AM

Subject:
CN=RICH MEDIA SYSTEMS INC., O=RICH MEDIA SYSTEMS INC., L=HENDERSON, S=Nevada, C=US

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
3F87144C25AF8BCF29F29C5A1FEEF4BA

File PE Metadata
Compilation timestamp:
5/20/2013 1:53:00 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:giujxw5VgDXpOiVHGKMlfXXiAUFif1vWbMQbqDPu6tpm:8jx0VgNhVHGxBCXUNwbqCMm

Entry address:
0x331C

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, 30, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, BC, 70, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 08, A3, 98, 92, 42, 00, E8, A8, 2E, 00, 00, A3, E4, 91, 42, 00, 55, 8D, 44, 24, 34, 68, B4, 02, 00, 00, 50, 55, 68, 90, 06, 42, 00, FF, 15, 7C, 71, 40, 00, 68, 7C, 93, 40, 00, 68, E0, 81, 42, 00, E8, 13, 2B, 00, 00, FF, 15, 34, 71, 40, 00, BB, 00, 40, 43, 00, 50, 53, E8, 01, 2B, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

The file mxsetup.exe has been seen being distributed by the following 2 URLs.

http://maxthon.1800download.com/get_azure_file/wUiS4WnYccXAwj uQbjxCggnkkU3LTPkEhnyas6H7KB2sTS35you2dBNJ0DteuatdzfknwpKOSCGGOO1WOxj0bIjzsWXFQ6V/T3zT0zxsmnp1KmF 5vKmiBBo58ihVJQXzWtDjRnwpp1qznxGWmYQbZOlY iYnNCKKdnZ00dOOz9VXBtIZeaNBBhhqPuACUmao6x2 s/.../FqounBcHrtGpn1OhZKt9nG sAMVPqJ7vUXKquZeaiC4iZbVEQJY2enUhuvD4XghqzRy33c8DSnK1WUqwsZGp

http://1800dcdn.blob.core.windows.net/dir195/wi/18/33/1/.../mxsetup.exe

Remove mxsetup.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.