82,399,351 programs installed

Should I remove Beta Rez?

What percent of users and experts removed it?
85% remove it15% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
United States Rank #46,468
Reach 0.0006%
Lifespan of installation (until removal)
< 6.24 days
82.80 days >
Average installed length: 43.51 days


2014.12.03.122336 11.11%
2014.09.22.174016 11.11%
2014.09.10.132644 11.11%
2014.09.01.195832 11.11%
2014.08.13.232835 11.11%
2014.07.15.055538 22.22%
2014.07.03.172040 11.11%
2014.05.21.003350 11.11%

Beta Rez

What is Beta Rez?

Beta Rez is an adware program that integrates into the user's web browsers (IE, Chrome, Firefox) and will perform a number of functions mostly designed to generate advertising supported or affiliate revenue. In order to do so the program will display a number of different ad formats by injecting the ads directly in the user's browser based on either the activity of the user's past and present behavior or based on the context of the web page. Ads are displayed as banners, text-links, search related adverts or in many cases malvertising in order to get a user to download and install additional software, mostly bundled adware. This adware will also track and report back the user's surfing behavior including web pages and domains visited as well as the advertisements displayed and clicked.


The most used version is 2014.07.15.055538, with over 98% of all installations currently using this version. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. It adds a Browser Helper Object (BHO) to Internet Explorer. The main program executable is BetaRezBHO.dll. Typically most users end up uninstalling this just after a few days. The software installer includes 8 files and is usually about 2.39 MB (2,505,553 bytes).
  • Possible malware installed by this program
  • Loads into the web browser
  • Adds a background Windows Service
  • Installed as part of a co-bundle
  • Injects advertisements unassociated with the underlying web page
  • Generally known to have a low reputation
  • The experts agree, you should remove it!
Warning, multiple anti-virus scanners have detected possible malware in Beta Rez.
BetaRezBHO.dll (72ffcfd598439cd7e947d0b84799f6a8) has been flagged by the following 32 scanners:
Anti-Virus softwareVersionDetection
Lavasoft Ad-Aware 912 Gen:Variant.Adware.BHO.Agent.4
Agnitum Outpost 7.1.1 PUA.Agent
Avira AntiVir APPL/BrowseFox.Gen2
Antiy-AVL GrayWare[AdWare:not-a-virus]/Win32.Agent
AVG 2015.0.3390 BrowseFox.F
Baidu-International Adware.Win32.BrowseFox.BF
Bitdefender Gen:Variant.Adware.BHO.Agent.4
Comodo Security 18747 Application.Win32.Altbrowse.AK
Dr.Web Trojan.BPlug.28
Emsisoft Anti-Malware Gen:Variant.Adware.BHO.Agent
ESET-NOD32 8.10036 a variant of Win32/BrowseFox.F
Fortinet FortiGate 8/6/2014 Adware/Agent
F-Secure 11.2014-06-08_4 Gen:Variant.Adware.BHO.Agent.4
G Data 14.8.24 Gen:Variant.Adware.BHO.Agent
Jiangmin KV140806 Adware/Agent.izz
K7 AntiVirus 13.180.12598 Unwanted-Program
K7GW 13.180.12598 Unwanted-Program ( 00454f261 )
Kaspersky not-a-virus:AdWare.Win32.Agent
Kingsoft AntiVirus 331020.49267 Win32.Troj.Agent.ah.(kcloud)
Malwarebytes v2014.08.06.08 PUP.Optional.BetaRez.A
McAfee 5600.7046 Artemis!72FFCFD59843
McAfee-GW-Edition 7.7046 Artemis!72FFCFD59843
MicroWorld-eScan Gen:Variant.Adware.BHO.Agent.4
NANO AntiVirus Riskware.Win32.Agent.cuenda
Panda Antivirus Trj/OCJ.E
Qihoo-360 Win32/Virus.Adware.891
Sophos 4.98 Generic PUA PK
SUPERAntiSpyware 10437 Adware.BrowseFox/Variant
TrendMicro-HouseCall 7.2.218 TROJ_GEN.F47V0502
Vba32 AntiVirus AdWare.Agent
VIPRE Antivirus 30902 Yontoo (fs)
Zillya Adware.Agent.Win32.9565
       View all 32 all detections
Beta Rez has been found to be bundled with 3rd party software. If you have not purposefully installed this, you should be safe uninstalling it.
Find out how to remove Beta Rez.

Program detailsProgram details

Displayed publisher: Beta Rez
URL: betarez.net/support
Help link: mailto:[email protected]
Installation folder: C:\Program Files\Beta Rez
Uninstaller: C:\Program Files\Beta Rez\BetaRezuninstall.exe
Estimated size: 2.39 MB

Program filesFiles installed by Beta Rez

Program module:BetaRezBHO.dll (Malware detected)
Name:Beta Rez
Path:C:\Program Files\Beta Rez\BetaRezBHO.dll
Additional files:
  • (Malware detected) BetaRezbho.dll - Beta Rez
  • 7za.exe (by Igor Pavlov) - 7-Zip (7-Zip Standalone Console)
  • BetaRezUninstall.exe
  • updateBetaRez.exe

Program behaviorsBehaviors exhibited

Internet Explorer BHO
  • BetaRezbho.dll is installed in Internet Explorer as a BHO (Browser Helper Object) under the name 'Beta Rez' with the class of {0e0e3540-d4fa-453b-a33c-2afea6763da9}.
  • updateBetaRez.exe runs as a service named 'Update Beta Rez' (Update Beta Rez).

How do I remove Beta Rez?

Quickly and completely remove Beta Rez from your computer by downloading "Should I Remove It?", its 100% FREE and installs in seconds (click the button below).
Download "Should I Remove It?", it's FREE!Remove Beta Rez from your computer.
Or, you can uninstall Beta Rez from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program Beta Rez, click it, and then do one of the following:
    • Windows Vista/7/8: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove Beta Rez.
  4. If for some reason uninstallation fails, please install Microsoft's uninstall fixer utility which will help fix problems with programs that can't be uninstalled at support.microsoft.com.

How do I reset my web browser?

If your web browser homepage and search settings have been modfied by Beta Rez you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome
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Win 7 (SP1) 44%
Win 7 11%
Windows Service? Yes
(Installs a service)
Uninstall it 85%
Keep it 15%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 55.56%
Windows 8 44.44%
Which OS releases does it run on?
Windows 7 Home Premium 55.56%
Windows 8.1 22.22%
Windows 8.1 Pro 22.22%

Distribution by countryGeography

86.96% of installs come from the United States
Which countries install it?
  United States 86.96%
  United Arab Emirates 4.35%
  United Kingdom 4.35%
  Mexico 4.35%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 55.56%
ASUS 22.22%
Lenovo 11.11%
Acer 11.11%
Common models
Gateway DX4831 12.50%
ASUSTeK Computer IN ET201... 12.50%
Hewlett-Packard 810-145qe 12.50%
ASUSTeK X550LD 12.50%
HP Pavilion dv6 Notebook ... 12.50%
LENOVO Lenovo H330 12.50%

About Yontoo Technology

Yontoo, a subsidiary/alias of ad-hijacker Sambreel, is a publisher of ad-supported web browser extensions designed to inject and display advertisements within the browser.
Publisher URL: www.yontoo.com


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