84,488,480 programs installed

Should I remove GrabRez?

What percent of users and experts removed it?
83% remove it17% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #19,050
United States Rank #28,476
Reach 0.0120%
Lifespan of installation (until removal)
< 5.38 days
158.83 days >
Average installed length: 83.46 days


2014.03.07.191837 0.42%
2014.03.05.221816 1.27%
2014.02.28.212019 1.27%
2014.02.26.051729 18.64%
2014.02.24.180254 2.97%
2014.02.24.180248 2.12%
2014.02.21.044812 7.63%
2014.02.19.232202 1.69%
2014.02.18.221939 6.36%
2014.02.18.174830 0.42%
2014.02.14.172742 11.02%
2014.02.13.012613 2.54%
2014.02.11.223523 3.81%
2014.02.11.194528 0.85%
2014.02.11.165306 0.85%
2014.02.07.225305 6.36%
2014.02.07.164718 9.32%
2014.02.05.221441 7.63%
2014.02.05.153917 1.27%
2014.02.04.044224 1.27%
2014.02.01.021226 4.24%
2014.01.29.231828 4.66%
2014.01.28.010755 3.39%


What is GrabRez?

GrabRez is an adware web browser extension that will display various popup and banner ads as well as modify the user's web browser search and home page settings. In some cases, the program will monitor a user's behavior and will inject rival advertisements over existing one or just inject new ones all together.


The most used version is 2014.02.26.051729, 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 GrabRez.FirstRun.exe. Typically most users end up uninstalling this just after a few days. The software installer includes 9 files and is usually about 1.06 MB (1,113,314 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
  • Hijacks the web browser's home 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 GrabRez.
GrabRezBHO.dll (ee7885eb233aced5b129a72fa0aeddff) has been flagged by the following 34 scanners:
Anti-Virus softwareVersionDetection
Lavasoft Ad-Aware 805 Adware.Agent.NYV
AhnLab-V3 2014.09.20 PUP/Win32.BrowseFox
Antiy-AVL GrayWare[AdWare:not-a-virus]/Win32.Agent
avast! 2014.9-141121 Win32:BrowseFox-AX [PUP]
AVG 2015.0.3283 BrowseFox.F
Avira ADWARE/BrowseFox.Gen2
AVware Yontoo (fs)
Baidu-International Adware.Win32.Agent.AR
Bitdefender Adware.Agent.NYV
Clam AntiVirus 0.98/21411 Win.Adware.Agent-7593
Comodo Security 19556 Application.Win32.Altbrowse.AK
Dr.Web Trojan.BPlug.28
Emsisoft Anti-Malware Adware.Agent.NYV
ESET-NOD32 8.10443 a variant of Win32/BrowseFox.F
F-Prot v6. W32/BadBHO.AW.gen
F-Secure 11.2014-21-11_6 Adware.Agent.NYV
G Data 14.11.24 Adware.Agent.NYV
Jiangmin KV141121 Adware/Agent.izz
K7 AntiVirus 13.183.13432 Unwanted-Program
K7GW 13.183.13432 Unwanted-Program ( 004a8e8b1 )
Kaspersky not-a-virus:AdWare.Win32.Agent
Kingsoft AntiVirus 331020.49267 Win32.Troj.Agent.ah.(kcloud)
Malwarebytes v2014.11.21.02 PUP.Optional.GrabRez.A
McAfee-GW-Edition 7.6939 BehavesLike.Win32.Trojan.dh
MicroWorld-eScan Adware.Agent.NYV
NANO AntiVirus Riskware.Win32.Agent.cuenda
nProtect Trojan-Clicker/W32.Agent.249624
Panda Antivirus Trj/CI.A
Qihoo-360 HEUR/Malware.QVM30.Gen
SUPERAntiSpyware 10224 Adware.BrowseFox/Variant
Symantec 11/21/2014 rev. 6 Trojan.ADH
Tencent Win32.Adware.Agent.Anfs
VIPRE Antivirus 33258 Yontoo (fs)
Zillya Adware.Agent.Win32.9046
updateGrabRez.exe (758d7c3f7317b284693927dad395d4bc) has been flagged by the following 30 scanners:
Anti-Virus softwareSoftware versionDetection
Lavasoft Ad-Aware Adware.Agent.NYV
Agnitum Outpost Riskware.Agent!
AhnLab-V3 2014.10.21.00 PUP/Win32.OutBrowse
Antiy-AVL Trojan/Win32.TSGeneric
AVG Generic.D20
Avira ADWARE/BrowseFox.Gen7
AVware Yontoo (fs)
Baidu-International Adware.Win32.BrowseFox.BH
Bitdefender 7.2 Adware.Agent.NYV
Comodo Security 19854 UnclassifiedMalware
Dr.Web Trojan.BPlug.250
Emsisoft Anti-Malware Adware.Agent.NYV (B)
ESET-NOD32 10593 a variant of Win32/BrowseFox.H
Fortinet FortiGate Adware/Kranet
F-Prot W32/A-db42cb3b!Eldorado
F-Secure 11.0.19100.45 Adware.Agent.NYV
G Data 24 Adware.Agent.NYV
K7 AntiVirus 9.184.13741 Trojan ( 0049f7ad1 )
K7GW 9.184.13741 Trojan ( 020000001 )
Malwarebytes PUP.Optional.GrabRez.A
McAfee BrowseFox.c
McAfee-GW-Edition v2014.2 BehavesLike.Win32.Dropper.fh
MicroWorld-eScan Adware.Agent.NYV
nProtect 2014-10-19.01 Adware.Agent.NYV
Sophos 4.98.0 Generic PUA HM
Symantec 20141.1.0.330 Trojan.Gen.2
Trend Micro 9.740.0.1012 TROJ_GEN.R0C1C0EJJ14
TrendMicro-HouseCall 9.700.0.1001 TROJ_GEN.R0C1C0EJJ14
VIPRE Antivirus 34106 Yontoo (fs)
Zillya Backdoor.PePatch.Win32.39756
       View all 64 all detections
GrabRez has been found to be bundled with 3rd party software. If you have not purposefully installed this, you should be safe uninstalling it.

Program detailsProgram details

Displayed publisher: GrabRez
URL: grabmyrez.co/support
Help link: mailto:[email protected]
Installation folder: C:\Program Files\GrabRez
Uninstaller: C:\Program Files\GrabRez\GrabRezuninstall.exe
Estimated size: 1.06 MB

Program filesFiles installed by GrabRez

Program executable:GrabRez.FirstRun.exe
Path:C:\Program Files\GrabRez\GrabRez.FirstRun.exe
Additional files:
  • (Malware detected) GrabRezBHO.dll - GrabRez
  • (Malware detected) updateGrabRez.exe

Program behaviorsBehaviors exhibited

Internet Explorer BHO
  • GrabRezBHO.dll is installed in Internet Explorer as a BHO (Browser Helper Object) under the name 'GrabRez' with the class of {e1420d09-acc8-4efd-9965-e7ae3c5b977c}.
  • updateGrabRez.exe runs as a service named 'Update GrabRez' (Update GrabRez).

How do I remove GrabRez?

You can uninstall GrabRez 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/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program GrabRez, click it, and then do one of the following:
    • Windows Vista/7/8/10: 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 GrabRez.
  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 GrabRez you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome

Win 7 (SP1) 48%
Win Vista (SP1) 0%
Windows Service? Yes
(Installs a service)
Uninstall it 83%
Keep it 17%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 56.78%
Windows 10 34.75%
Windows XP 5.51%
Windows Vista 2.54%
Windows Server 2003 0.42%
Which OS releases does it run on?
Windows 7 Home Premium 24.58%
Windows 7 Ultimate 18.22%
Windows 8.1 10.59%
Windows 7 Professional 9.75%
Windows 8 7.20%
Microsoft Windows XP 5.51%

Distribution by countryGeography

22.42% of installs come from the United States
Which countries install it?
  United States 22.42%
  Italy 8.97%
  India 4.93%
  United Kingdom 3.14%
  Saudi Arabia 3.14%
  Israel 3.14%
  Canada 2.69%
  Australia 2.24%
  Portugal 2.24%
  Spain 2.24%
  Netherlands 2.24%
  Mexico 1.79%
  Russia 1.79%
  Czech Republic 1.79%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 21.56%
Acer 21.56%
Hewlett-Packard 20.96%
ASUS 14.37%
Lenovo 7.78%
Samsung 4.79%
Toshiba 2.40%
Apple 1.20%
Intel 1.20%
MSI 1.20%
Common models
HP Pavilion g6 Notebook P... 5.79%
Acer Aspire E1-571 3.31%
Dell Inspiron 3521 3.31%
ASUSTeK K53SC 1.65%
Dell Latitude E6510 1.65%
Dell Inspiron N5050 1.65%

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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