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msessentials.exe

OutBrowse

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application msessentials.exe by OutBrowse has been detected as adware by 15 anti-malware scanners. The program is a setup application that uses the OutBrowse Revenyou installer. The setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs.
Publisher:
OutBrowse  (signed and verified)

MD5:
f6fafc6baed22cc5a6f35e59ccc80a40

SHA-1:
a367d72857c0c1eabecaf9888b1b3fba27852558

SHA-256:
ab34faa76604ae091cb7edfc10eae36207959bedafc083705270b59c70283969

Scanner detections:
15 / 68

Status:
Adware

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/24/2024 3:30:40 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.OutBrowse
2015.0.3509

Bkav FE
W32.Clod033.Trojan
1.3.0.4613

Dr.Web
Adware.Downware.1664
9.0.1.099

ESET NOD32
Win32/OutBrowse (variant)
8.9190

Fortinet FortiGate
Riskware/NSIS_OutBrowse
4/9/2014

IKARUS anti.virus
not-a-virus:Downloader.NSIS
t3scan.2.2.29

K7 AntiVirus
Unwanted-Program
13.174.10560

Kaspersky
not-a-virus:Downloader.NSIS.OutBrowse
14.0.0.4041

Malwarebytes
PUP.Optional.Smart
v2014.04.09.08

McAfee
Artemis!F6FAFC6BAED2
5600.7165

Reason Heuristics
PUP.OutBrowse.M
14.8.7.20

Sophos
Generic PUA AA
4.96

Trend Micro House Call
TROJ_GEN.F47V1118
7.2.99

Vba32 AntiVirus
Downloader.OutBrowse
3.12.24.3

VIPRE Antivirus
OutBrowse
24516

File size:
612 KB (626,728 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
OutBrowse

Authority:
VeriSign, Inc.

Valid from:
10/23/2013 8:00:00 PM

Valid to:
10/24/2014 7:59:59 PM

Subject:
CN=OutBrowse, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=OutBrowse, L=Ramat Gan, S=Ramat Gan, C=IL

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:
56A6FE571611B68C9224798AD62913CA

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:So+ogQt+XfYqKrwbHk84yWbhc+PzSDkrihck7nW3TewrYmR22XZrq2u:SBJPfHwG+PzS2wPnoyw1LVbu

Entry address:
0x30FA

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, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9773

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://cdn.app2desktop.com/misc/.../msessentials.exe

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