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DefaultTabCnetSmart.exe

OutBrowse LTD

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application DefaultTabCnetSmart.exe by OutBrowse has been detected as adware by 16 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:
DefaultTab  (signed by OutBrowse LTD)

Product:
DefaultTab

Version:
1.0

MD5:
e29f00c7bf3b5b21779912e145a7706e

SHA-1:
f09bbc9a5bffeb5ae2826fd5efe3e2600045cf3c

SHA-256:
3e2438e350c26761584601b04be7e736fe3e0735ccdac576a09123e0e1b3492e

Scanner detections:
16 / 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:
11/5/2024 2:23:12 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Adware-gen [Adw]
2014.9-130828

Baidu Antivirus
Trojan.Win32.Agent
4.0.3.131220

Boost by Reason
Trojan.Adw.OutBrowse.T
2013.8.28.1

Dr.Web
Adware.Plugin.48
9.0.1.0240

ESET NOD32
Win32/Toolbar.DefaultTab (variant)
7.8519

F-Secure
Dropped:Adware.Agent.NPP
11.2013-28-08_4

G Data
Win32.Trojan.Agent.T8NWTU
13.12.22

herdProtect (fuzzy)
variant of DefaultTab.exe (Adware)
2013.12.20.16

IKARUS anti.virus
AdWare.Agent
t3scan.2.0.3.0

Malwarebytes
PUP.DefaultTab
v2013.08.28.01

MicroWorld eScan
Dropped:Adware.Agent.NPP
14.0.0.720

Norman
Suspicious_Gen4.EFFXV
11.20131220

Panda Antivirus
Suspicious file
13.12.20.04

Reason Heuristics
PUP.OutBrowse.T
14.8.7.17

Trend Micro House Call
TROJ_GEN.F47V0605
7.2.240

VIPRE Antivirus
Trojan.Win32.Generic
24192

File size:
2.8 MB (2,903,992 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
English (United States)

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

Digital Signature
Signed by:
OutBrowse LTD

Authority:
Symantec Corporation

Valid from:
2/25/2013 4:00:00 PM

Valid to:
2/26/2014 3:59:59 PM

Subject:
CN=OutBrowse LTD, O=OutBrowse LTD, L=Ramat Gan, S=Ramat Gan, C=IL, SERIALNUMBER=514686914, OID.2.5.4.15=Private Organization, OID.1.3.6.1.4.1.311.60.2.1.3=IL

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

Serial number:
06C1C2AE3E180ADDA27BBF2BD8EAC0E7

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:d0WDL1a9st1XvkdGBYSKgKShAuzZEQCy45FzcK2ZQpD8gaHiSb7W/n4qrFk+Nwd:dRH1T1XvuGdKShAl1FP204RH1b7k4YHw

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:
7.9925

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://cdn.ppdownload.com/Installer/.../DefaultTabCnetSmart.exe

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