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Yontoo is a deceptive browser extension for the Internet Explorer, Google Chrome, Mozilla Firefox but also OSX Safari browser. This deceptive browser extensions use popups and inline-text advertisements as “Ads by Yontoo” to promote malicious ads or web-traffic thru or to a specific website. The ads promoted by Yontoo are often used to send web-traffic to partners in order to make revenue using affiliates thru the superfish.com, m2pub.com domain and other suspicious advertisement networks.
What does Yontoo do ?
Adware like Yontoo can display and download advertisements and may be considered dangerous for your privacy. Adware is not harmful in any way like a backdoor or root-kit, but adware tracks your computer’s internet usage to promote to you unwanted pop-ups advertisements or redirect you to unwanted or even malicious webpages. The ads will display green or blue underlined keywords that will show pop-up advertisements, inline-text ads, obtrusive advertising, ad overlays or any other unwanted ads or pop-ups in your browsers. Possible pop-ups may vary from legit advertisements with offers, deals, coupons, price comparison or pop-ups that offer a Java, Media Player or Flash Player update in order to install more adware into your computer.
This are well known social engineering techniques to trick the computer user into installing malicious or ad-support software. Often this is where the problem persists, there is a thin line between legit, ad-support or Potentially Unwanted software (PUPs).
How to prevent Yontoo ?
It is advised to always read the End User License Agreements (EULA) or Terms and Agreements before installing software on your computer (We know, the EULA’s are often long..guess why..). Do never click too fast thru the installation process [Next] button of software as you will agree to software you might not want to install. If the installer offers a Advanced or Custom option button, click it to find out if there is any other malicious software offered and installed during the installation process. Also remember to check pre populated checkboxes during the installation, preview them before clicking to the next window of the installer.
Prevent installers as “Fusion Install”, “Bundlore Limited”, “InstallX LLC”, “WARP Install”, “Digital Pine”, “Firseria”, “Payments Interactive SL”, “Tuguu SL”. These predefined installation software often contain additional software we classify as adware or potentially unwanted. All tricks to make sure their software is installed is called Dark patterns, this are user interfaces designed to trick the user and are used more and more these days to make software valuable for its developer(s).
While these tricks might seem obvious to the most, many new or inexperienced users fall victim to these tricks and end up installing unwanted software. Did you, keep our tips in mind for the next time or download this great free software called unchecky which does the work for you.
Remove Yontoo adware
Quick menu to Remove Yontoo
Step 1 – Uninstall YontooStep 2 – Remove Yontoo Extension
Step 3 – Remove Yontoo with AdwCleaner
Step 4 – Remove Yontoo with MalwareBytes Anti-Malware
Optional : Reset browser settings
Remove Yontoo - Windows 7
Open Programs and Features by clicking the Start button , clicking Control Panel, clicking Programs, and then clicking Programs and Features.
Select Yontoo , and then click Uninstall. Some programs include the option to change or repair the program in addition to uninstalling it, but many simply offer the option to uninstall. To change a program, click Change or Repair. If you’re prompted for an administrator password or confirmation, type the password or provide confirmation.
Remove all recent installed software, sort by “Installed on” to easily find recent installed software.
Remove Yontoo - Windows 8
Swipe in from the right edge of the screen, and then tap Search.
(If you’re using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Search.)
Enter control panel in the search box, and then tap or click Control Panel.
Under View by: select Large Icons, and then tap or click Programs and features.
Tap or click Yontoo, and then tap or click Uninstall.
Follow the instructions on the screen. Make sure when you uninstall the malware that there is no extra software is offered during uninstallation and read every pop-up before clicking any button.
Remove all recent installed software, sort by “Installed on” to easily find recent installed software.
Remove Yontoo – Mac OSX
Open Finder
Select Go in the menu
Goto Applications
Remove Yontoo software and drag the item to the trash can.
If you can’t find it, remove any other suspicious items from the Applications folder.
Goto the next Step: Remove Extension from Safari (scroll down…)
Scan your Mac with the free tools as described in this instruction (click here – new window will open).
Remove Yontoo BHO from Internet Explorer
Open the desktop, and then tap or click the Internet Explorer icon on the taskbar.
Tap or click the Tools button , and then tap or click Manage add-ons.
Under Show, tap or click All add-ons, and then select Yontoo
Make sure to remove all BHO’s you do not know or need. If you don’t use any BHO remove everything listed in the Add-ons panel.
If the add-on can be deleted, you’ll see the Remove option. Tap or click Remove and then tap or click Close. Otherwise click Disable button.
Remove Yontoo Extension from Google Chrome
Uninstall an extension to remove it completely from the Google Chrome browser. Extensions are extra features and functionality that can easily be added to Google Chrome. By using extensions, you can customize Google Chrome with features you like, while keeping your browser free of things that you don’t use. Unfortunately there are also extensions that are used to collect personal and internet behaviour from your computer for revenue. Make sure you delete all extensions from Google Chrome that you do not need, know or trust. Keep the extensions in Google Chrome clean for the best and fastest internet experience while using Google Chrome.
Click the Chrome menu on the browser toolbar.
Click Tools.
Select Extensions.
Click the trash can icon by the Yontoo extension you’d like to completely remove.
Make sure to remove all extensions you do not know or need. If you don’t use any extension remove everything listed in the extensions panel.
A confirmation dialog appears, click Remove.
If the extension is Installed by Enterprise Policy follow this guide.
Remove Yontoo Extension from Mozilla Firefox
Click the menu button and choose Add-ons. The Add-ons Manager tab will open.
In the Add-ons Manager tab, select the Extensions or Appearance panel.
Select Yontoo
Make sure to remove all extensions you do not know or need. If you don’t use any extension remove everything listed in the extensions panel.
Click its Disable or Remove button. Remove button is preferred if available.
Click Restart now if it pops up. Your tabs will be saved and restored after the restart.
Remove Yontoo Extension from Safari (Mac OSX)
Click the Safari (finder) menu
Choose Preferences from the menu
Select Extensions tab
Remove Yontoo extension by clicking the Uninstall button
Take notice of the extensions, if there are extensions and you don’t use any, uninstall them all.
Restart Safari
Scan your Mac with the free tools as described in this instruction.
Remove Yontoo using AdwCleaner
AdwCleaner developed by Xplode is a very easy piece of software to remove unwanted toolbars, browser hijackers, redirects and potentially unwanted programs (PUPs) in Internet Explorer, Mozilla Firefox, Google Chrome or Opera. AdwCleaner requires no installation and can be ran in a instant to scan your computer for malicious software.
Nowadays many free downloadable software is bundled with all sorts of additional software such as toolbars and other dubious software that you do not want on your computer. The main cause of such unwanted software (PUPs) are the download sites that offer free software that is bundled with adware. CNET, Download.com, Softonic offer software with a custom installer. It’s this custom installer that offers additional software in order to keep the software and services they offer for free.
We strongly recommend using AdwCleaner several times a month to keep your computer clean from Adware, Pop-ups, Browser Hijackers, Toolbars or Potentially Unwanted Programs.
Download AdwCleaner (Download will open in a New Window)
Select AdwCleaner.exe with right mouse click and Run as Administrator
If User Account Control asks you to allow AdwCleaner.exe to make changes to your computer, press Yes to continue.
Start scanning your computer for any malicious threats by selecting the Scan button, please wait.
AdwCleaner will now start scanning your computer.
If AdwCleaner is done, it will display a list of malicious items detected, please uncheck the items you do not want to remove that might be detected as malicious.
If you have nothing to uncheck, continue to the removal process and select the Clean button.
Reboot your computer.
After the reboot a log file will open. The logfile in Windows XP and Windows 7 will open once the desktop is started.
To open the log file in Windows 8 you need to switch to the Desktop mode by selecting WINDOWS KEY + D on your keyboard.
If you want to check the AdwCleaner log for further analyse, you can find the report log in your system drive and then the Adwcleaner folder.
for example: C:\adwcleaner
Goto the next step.
Remove Yontoo with MalwareBytes Anti-Malware Free
Download MalwareBytes Anti-Malware
Malwarebytes Anti-Malware Free’s industry-leading scanner detects and removes malware like worms, Trojans, rootkits, rogues, spyware, and more. All you have to do is launch Malwarebytes Anti-Malware Free and run a scan. It’s that simple. Or if you want even better protection, consider Malwarebytes Anti-Malware Premium and its instant real-time scanner that automatically prevents malware and websites from infecting your PC. Either way you’re crushing malware and foiling hackers
Install MalwareBytes Anti-Malware using the installation wizard.
MalwareBytes Anti-Malware needs no configs or specific settings, just install and you are ready to scan your computer for malware and free removal.
Perform a Threat Scan
If you find malware in your free scan consider upgrading to our PRO Version. The PRO version stops malware dead in its tracks, never allowing it to access your PC.
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Automatic priority updates and scheduled scanning
Blazing fast flash scans
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Today’s cyber criminals build software designed to slip past antivirus programs undetected. Malwarebytes Anti-Malware Premium crushes these threats with innovative technologies designed to defend you while keeping your online experience fast and hassle free.
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Detects and protects against malware in real-time
Blocks hacking and phishing attempts
Schedules automatic scanning
Offers three flexible scanning modes
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Advanced malware removal
Antivirus compatibility
Goto the next step if the problem still persists.
(Optional) Reset Internet Explorer, Google Chrome or Mozilla Firefox to default settings
Occasionally it is advised to restore your browser to default settings, as this threat is installed by many different applications. Restoring is the easiest and fastest way to get rid of this threat. Please know when you restore to default settings all your personal settings will be lost. If you do agree to continue to reset your Internet Explorer, Google Chrome or Mozilla Firefox browser to default settings see our instructions.
Reset Internet Explorer to default settings
Open Internet Explorer
goto “wrench” icon in top right corner
Select Internet Options
Goto tab Advanced
Select Reset button
Enable Delete personal Settings
Click Reset button
Restart Internet Explorer
Reset Google Chrome to default settings
Open Google Chrome
Goto the three stripes in the right top corner (menu)
Select Settings
Scroll down to the end of the page, search for + Show advanced settings
Scroll down once again to the end of the page and click Reset browser settings button
Click Reset once more
Reset Mozilla Firefox to default settings
Open Mozilla Firefox
Goto the three stripes in the top right corner
Select the Question Mark
Select Troubleshooting Information in the menu.
Click the Reset Firefox button and confirm Reset Firefox again the pop-up.
Notice: Old data from Firefox will be placed on your Windows Desktop in a folder called “Old Firefox data”.
As restoring to default settings for Firefox didn’t work out as expected you can restore this folder, otherwise delete this folder from your desktop.
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