82,399,351 programs installed

Should I remove Norpalla?

What percent of users and experts removed it?
79% remove it21% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #19,840
United States Rank #34,903
Reach 0.0125%
Lifespan of installation (until removal)
< 3.69 days
108.97 days >
Average installed length: 57.26 days


2014.07.30.062927 0.57%
2014.07.29.182923 0.57%
2014.07.29.142923 0.57%
2014.07.29.062923 1.14%
2014.07.29.022916 1.14%
2014.07.27.102855 0.57%
2014.07.27.062910 0.57%
2014.07.27.022900 0.57%
2014.07.25.142841 0.57%
2014.07.23.200808 0.57%
2014.07.23.080806 1.14%
2014.07.23.040806 0.57%
2014.07.22.120751 0.57%
2014.07.22.080756 0.57%
2014.07.22.040750 1.14%
2014.07.22.000743 0.57%
2014.07.21.200740 0.57%
2014.07.21.160742 0.57%
2014.07.21.120743 1.14%
2014.07.21.081402 1.70%
2014.07.21.000731 1.14%
2014.07.20.200732 0.57%
2014.07.20.080726 1.14%
2014.07.20.000719 0.57%
2014.07.19.200718 0.57%
2014.07.19.040711 0.57%
2014.07.18.160706 1.14%
2014.07.18.080700 0.57%
2014.07.17.145931 1.14%
2014.07.17.040651 0.57%
2014.07.16.200648 0.57%
2014.07.16.160648 2.84%
2014.07.16.135741 0.57%
2014.07.15.160639 0.57%
2014.07.15.120639 0.57%
2014.07.14.120629 0.57%
2014.07.13.160623 0.57%
2014.07.12.200607 0.57%
2014.07.12.120604 0.57%
2014.07.11.160605 0.57%
2014.07.11.120557 1.14%
2014.07.11.040549 0.57%
2014.07.09.160535 0.57%
2014.07.08.181400 0.57%
2014.07.07.181355 1.14%
2014.07.07.021341 0.57%
2014.07.06.221347 1.14%
2014.07.05.221335 0.57%
2014.07.05.181328 0.57%
2014.07.05.101331 1.14%
2014.07.05.061326 0.57%
123 versions


What is Norpalla?

This adware software (a branded version of the morphing Yontoo adware browser addon) injects itself into the user's web browser (IE, Chrome and Firefox) and will display out-of context advertising on web sites that are not associated with Yontoo or its affiliate partners. Advertisements will be displayed as banner and video ads, search related ads, transitional and in-text ads and links. The software will also periodically self-update and call home for instructions as well as additional ad feeds and reporting of how the user interacts with the software as well as what domains and web pages the user visits.


The most used version is 2014.07.16.160648, with over 35% 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 Norpalla.FirstRun.exe. Typically most users end up uninstalling this just after a few days. The software installer includes 24 files and is usually about 2.35 MB (2,459,373 bytes).
  • Possible malware installed by this program
  • Loads into the web browser
  • Adds a background Windows Service
  • Installed as part of a co-bundle
  • Generally known to have a low reputation
  • The wisdom of the crowd agrees, you should remove it!
Warning, multiple anti-virus scanners have detected possible malware in Norpalla.
Norpalla.FirstRun.exe (0a2560b3f7673c48e6889eccfcca186f) has been flagged by the following 3 scanners:
Anti-Virus softwareVersionDetection
Avira AntiVir APPL/BrowseFox.Gen
ESET-NOD32 8.9946 a variant of MSIL/BrowseFox.G
Malwarebytes v2014.06.20.09 PUP.Optional.Sambreel.A
NorpallaBHO.dll (1d47aa0f6fa6601007cafd7cfae95bd9) has been flagged by the following 42 scanners:
Anti-Virus softwareSoftware versionDetection
Lavasoft Ad-Aware Adware.SwiftBrowse.CN
Agnitum Outpost PUA.SwiftBrowse!
AhnLab-V3 2015.03.22.00 Win-PUP/BrowseFox.Gen
ALYac Adware.SwiftBrowse.CN
Antiy-AVL GrayWare[AdWare:not-a-virus]/Win32.SwiftBrowse
avast! 8.0.1489.320 Win32:BrowseFox-GD [PUP]
AVG BrowseFox.F
Avira Adware/BrowseFox.aov
AVware Yontoo (fs)
Baidu-International Adware.Win32.BrowseFox.O
Bitdefender 7.2 Adware.SwiftBrowse.CN
Bkav FE W32.HfsAdware.D309
CAT-QuickHeal 14.00 AdWare.Swiftbrowse.r5 (Not a Virus)
Comodo Security 21487 Application.Win32.BrowseFox.JM
Cyren W32/S-7bed2e86!Eldorado
Dr.Web Trojan.Yontoo.1741
Emsisoft Anti-Malware Adware.SwiftBrowse.CN (B)
ESET-NOD32 11356 a variant of Win32/BrowseFox.O potentially unwanted
Fortinet FortiGate 5.0.999.0 Adware/BrowseFox
F-Prot W32/S-7bed2e86!Eldorado
F-Secure 11.0.19100.45 Adware.SwiftBrowse.CN
G Data 25 Adware.SwiftBrowse.CN
Jiangmin 16.0.100 AdWare/SwiftBrowse.dj
K7 AntiVirus 9.202.15338 Trojan ( 0040f9921 )
K7GW 9.202.15338 Trojan ( 0040f9921 )
Kaspersky not-a-virus:AdWare.Win32.SwiftBrowse.ci
Malwarebytes PUP.Optional.Norpalla.A
McAfee BrowseFox
McAfee-GW-Edition v2014.2 BrowseFox
MicroWorld-eScan Adware.SwiftBrowse.CN
NANO AntiVirus Trojan.Win32.Yontoo.dmjhvx
nProtect 2015-03-20.01 Adware.SwiftBrowse.CN
Panda Antivirus Trj/CI.A
Qihoo-360 Win32/Virus.Adware.8e4
Sophos 4.98.0 Generic PUA NK
Symantec 20141.2.0.56 Yontoo.C
Tencent Trojan.Win32.Qudamah.Gen.10
Trend Micro 9.740.0.1012 TROJ_GEN.R0C1C0PLK14
TrendMicro-HouseCall 9.700.0.1001 TROJ_GEN.R0C1C0PLK14
Vba32 AntiVirus AdWare.SwiftBrowse
VIPRE Antivirus 38630 Yontoo (fs)
Zillya Adware.SwiftBrowse.Win32.4028
updateNorpalla.exe (7155060a02384916864e29e90dcf2e64) has been flagged by the following 37 scanners:
Anti-Virus softwareSoftware versionDetection
Lavasoft Ad-Aware Adware.SwiftBrowse.CN
AhnLab-V3 2015.03.27.00 PUP/Win32.BrowseFox
ALYac Adware.SwiftBrowse.CN
Antiy-AVL GrayWare[AdWare:not-a-virus]/Win32.SwiftBrowse
avast! 8.0.1489.320 Win32:BrowseFox-GD [PUP]
AVG Norpalla.131
Avira ADWARE/BrowseFox.aov
AVware Yontoo (fs)
Baidu-International Adware.Win32.BrowseFox.BG
Bitdefender 7.2 Adware.SwiftBrowse.CN
Bkav FE W32.HfsAdware.A742
Cyren W32/S-7b6eb46a!Eldorado
Dr.Web Trojan.Yontoo.1741
Emsisoft Anti-Malware Adware.SwiftBrowse.CN (B)
ESET-NOD32 11382 a variant of MSIL/BrowseFox.H potentially unwanted
Fortinet FortiGate 5.0.999.0 Adware/SwiftBrowse
F-Prot W32/S-7b6eb46a!Eldorado
F-Secure 11.0.19100.45 Adware.SwiftBrowse.CN
G Data 25 Adware.SwiftBrowse.CN
IKARUS anti.virus T3. PUA.MSIL.BrowseFox
K7 AntiVirus 9.202.15395 Unwanted-Program ( 0040f96b1 )
K7GW 9.202.15395 Unwanted-Program ( 0040f96b1 )
Kaspersky not-a-virus:AdWare.Win32.SwiftBrowse.ci
McAfee BrowseFox-FTQ
McAfee-GW-Edition v2015 BrowseFox-FTQ
MicroWorld-eScan Adware.SwiftBrowse.CN
NANO AntiVirus Riskware.Win32.SwiftBrowse.dlmxzt
nProtect 2015-03-26.01 Adware.SwiftBrowse.CN
Panda Antivirus Trj/CI.A
Qihoo-360 Win32/Virus.Adware.8e4
Sophos 4.98.0 Browse Fox
Symantec 20141.2.0.56 Trojan.Gen.2
Tencent Trojan.Win32.Qudamah.Gen.18
Trend Micro 9.740.0.1012 TROJ_GEN.F0C2C00AC15
TrendMicro-HouseCall 9.700.0.1001 TROJ_GEN.F0C2C00AC15
Vba32 AntiVirus AdWare.SwiftBrowse
VIPRE Antivirus 38804 Yontoo (fs)
1B39D0DC-4CF8-4DAA-8414-2C1DBA836526.dll (e3acf8d690085278db6c9c82e19621cd) has been flagged by the following 29 scanners:
Anti-Virus softwareSoftware versionDetection
Lavasoft Ad-Aware Gen:Variant.Adware.BHO.Agent.4
Agnitum Outpost PUA.Agent!
Avira AntiVir APPL/BrowseFox.Gen2
Antiy-AVL GrayWare[AdWare:not-a-virus]/Win32.Agent
AVG BrowseFox.F
Baidu-International Adware.Win32.BroseFox.45
Bitdefender 7.2 Gen:Variant.Adware.BHO.Agent.4
CAT-QuickHeal 14.00 AdWare.Agent.r5 (Not a Virus)
Comodo Security 18604 Application.Win32.Altbrowse.AK
Dr.Web Trojan.BPlug.28
Emsisoft Anti-Malware Gen:Variant.Adware.BHO.Agent.4 (B)
ESET-NOD32 9971 a variant of Win32/BrowseFox.F
Fortinet FortiGate Adware/Agent
F-Secure 11.0.19100.45 Gen:Variant.Adware.BHO.Agent.4
G Data 24 Gen:Variant.Adware.BHO.Agent.4
Jiangmin 16.0.100 Adware/Agent.izz
Kaspersky not-a-virus:AdWare.Win32.Agent.ahbx
Kingsoft AntiVirus 2013.4.9.267 Win32.Troj.Agent.ah.(kcloud)
Malwarebytes PUP.Optional.Norpalla.A
McAfee Artemis!E3ACF8D69008
McAfee-GW-Edition 2013 Artemis!E3ACF8D69008
MicroWorld-eScan Gen:Variant.Adware.BHO.Agent.4
NANO AntiVirus Riskware.Win32.Agent.cuenda
Panda Antivirus Trj/CI.A
Sophos 4.98.0 Generic PUA ML
SUPERAntiSpyware Adware.BrowseFox/Variant
TrendMicro-HouseCall 9.700.0.1001 TROJ_GEN.F47V0531
VIPRE Antivirus 30468 Yontoo (fs)
Zillya Adware.Agent.Win32.9009
       View all 111 all detections
Norpalla 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 Norpalla.

Program detailsProgram details

Displayed publisher: Norpalla
URL: norpalla.com/support
Help link: mailto:[email protected]
Installation folder: C:\Program Files\Norpalla
Uninstaller: C:\Program Files\Norpalla\Norpallauninstall.exe
Estimated size: 2.35 MB

Program filesFiles installed by Norpalla

Program executable:Norpalla.FirstRun.exe (Malware detected)
Path:C:\Program Files\Norpalla\Norpalla.FirstRun.exe
Additional files:
  • (Malware detected) 1B39D0DC-4CF8-4DAA-8414-2C1DBA836526.dll - Norpalla
  • (Malware detected) 4C5A45E7-DA12-43BA-BBD3-3534943C9DE0.dll
  • (Malware detected) 522AC6F1-212A-4173-92B9-BC0B62EB5F7D.dll
  • (Malware detected) 875C0DAB-E03F-4578-8A21-017A126F7620.dll
  • (Malware detected) 88AE542F-0C86-4F42-948D-DDD21548E84B.dll
  • (Malware detected) B2474A22-1F2C-4F8B-B282-C6630574BB82.dll
  • (Malware detected) B26A4098-9654-4875-B252-6FC470B13AB7.dll
  • (Malware detected) C163064B-E194-4020-B003-001337A6C196.dll
  • (Malware detected) D5C63841-5870-4964-9FB3-559C9D3E3414.dll
  • (Malware detected) E65B6D66-D6BC-4ACD-B85F-DDC24F2FEAC3.dll
  • (Malware detected) F204D805-FD27-4719-B76E-5D17991F442A.dll
  • (Malware detected) Norpallabho.dll
  • Norpalla.FirstRun.exe - FirstRun
  • 7za.exe (by Igor Pavlov) - 7-Zip (7-Zip Standalone Console)
  • NorpallaUn.exe
  • NorpallaUninstall.exe
  • (Malware detected) updateNorpalla.exe

Program behaviorsBehaviors exhibited

Internet Explorer BHO
  • NorpallaBHO.dll is installed in Internet Explorer as a BHO (Browser Helper Object) under the name 'Norpalla' with the class of {18b20944-f54e-4509-88fa-f0ad137bf8de}.
2 Services
  • updateNorpalla.exe runs as a service named 'Update Norpalla' (Update Norpalla).
  • updateNorpalla(218).exe runs as a service named 'Update Norpalla' (Update Norpalla).

How do I remove Norpalla?

Quickly and completely remove Norpalla 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 Norpalla from your computer.
Or, you can uninstall Norpalla 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 Norpalla, 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 Norpalla.
  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 Norpalla you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome
Scan your PC for malware
If you do not have a good anti-virus program, please consider installing one. Below are some we highly recommend.

Win 7 (SP1) 54%
Win Vista (SP1) 1%
Windows Service? Yes
(Installs a service)
Uninstall it 79%
Keep it 21%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 67.61%
Windows 8 27.84%
Windows XP 2.84%
Windows Vista 1.70%
Which OS releases does it run on?
Windows 7 Ultimate 27.59%
Windows 7 Home Premium 16.67%
Windows 7 Professional 16.09%
Windows 8 Pro 5.75%
Windows 8.1 Single Langua... 5.17%
Windows 8.1 5.17%

Distribution by countryGeography

11.11% of installs come from the United States
Which countries install it?
  United States 11.11%
  Indonesia 10.00%
  Saudi Arabia 7.78%
  Thailand 6.11%
  India 6.11%
  Mexico 3.33%
  Egypt 3.33%
  DZ 3.33%
  Canada 2.78%
  Malaysia 2.78%
  Australia 2.22%
  Brazil 2.22%
  BD 2.22%
  United Arab Emirates 1.67%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 22.63%
Acer 21.90%
Dell 13.14%
Toshiba 12.41%
Lenovo 10.95%
ASUS 8.03%
Samsung 5.11%
Intel 1.46%
Sony 0.73%
MSI 0.73%
Common models
HP 15 Notebook PC 2.75%
HP Pavilion g6 Notebook P... 1.83%
HP Pavilion dv6 Notebook ... 1.83%
LENOVO 20206 1.83%
Hewlett-Packard Presario ... 1.83%

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

comments1 comment

user comment
user comment
biplovover a year ago
How to remove norpalla from pc...i tried but not sucess...i have kaspersky anti virus in my pc..it show warning about norpalla to remove but its not being remove..i need suggestion to remove from my hard drive