Nok App browser hijacker removal instructions
What is Nok App?
Typically, browser hijackers are designed to promote fake search engines (their addresses). They promote them by making changes in browser settings. Also, they often are designed to collect details relating to their browsing habits of their users. Most users download and install browser hijackers unknowingly. For this reason, applications like the Nok App browser hijacker are called potentially unwanted applications (PUAs). Nok App promotes the keysearchs.com address/fake search engine.
As a rule, browser hijackers change the address of a default search engine, homepage, and new tab to promote a fake search engine. They change those addresses (browser settings) to an address of a fake search engine. Research shows that Nok App can promote keysearchs.com without changing any settings. It can leave settings unchanged and open keysearchs.com only when it has detected that users entered a search query into the URL bar. Depending on the geolocation of its visitors/users, keysearchs.com redirects them either to google.com or to bing.com (through my-search.com and search-checker.com). It means that users of the Nok App application get search results from Google or Bing, legitimate search engines. However, they get them through keysearchs.com, which makes it completely useless. It is important to mention that not all fake search engines show results generated by legitimate search engines. Sometimes they generate their own results. Their results contain links to shady websites, deceptive ads. Also, Nok App is not the only browser hijacker promoting the keysearchs.com address. In one way or another, keysearchs.com can be removed from settings only when the installed browser hijacker that promotes it is no longer installed.
As mentioned in the first paragraph, it is common that browser hijackers collect various browsing-related data. Some examples of details that they target are IP addresses, entered search queries, URLs of visited websites, geolocations, and so on. Although, some browser hijackers could be capable of accessing personal details as well. It is important to know that PUAs collect data to generate revenue for their developers. All gathered information can be used for marketing purposes, sold to third parties (potentially cybercriminals), or monetized in other ways. A browser hijacker is a type of app that can be the reason behind issues with online privacy, browsing safety, or even identity theft.
|Threat Type||Browser Hijacker, Redirect, Search Hijacker, Toolbar, Unwanted New Tab|
|Browser Extension(s)||Nok App|
|Supposed Functionality||Improved browsing experience|
|Detection Names||Fortinet (Malware), Full List Of Detections (VirusTotal)|
|Serving IP Address (keysearchs.com)||18.104.22.168|
|Affected Browser Settings||Homepage, new tab URL, default search engine|
|Symptoms||Manipulated Internet browser settings (homepage, default Internet search engine, new tab settings). Users are forced to visit the hijacker's website and search the Internet using their search engines.|
|Distribution methods||Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers.|
|Damage||Internet browser tracking (potential privacy issues), display of unwanted ads, redirects to dubious websites.|
|Malware Removal (Windows)||
To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Malwarebytes.
More examples of potentially unwanted applications that hijack browsers are Tag Search, Direct Search Online, and Instant Safe Web. It is noteworthy that browser hijackers tend to be advertised as useful applications. They are supposed to include various features, improve the browsing experience, and so on. Although, most browser hijackers useless to their users and can cause various issues. Users who have an app of this type installed on a browser or the operating system should remove it as soon as possible.
How did Nok App install on my computer?
It is common that users cause unwanted downloads and installations when developers distribute potentially unwanted apps by bundling them together with other, mainly free programs. In other words, when PUAs are included in downloaders, installers as additional offers. In most cases, those offers can be found and declined using "Custom", "Advanced" and other similar settings, or through checkboxes that those downloaders, installers have. However, not all users check and change those settings. They agree with offers to download or install additional included apps (PUAs) by leaving them unchanged. Another examples of how users unintentionally download or install PUAs is by clicking on deceptive advertisements that can execute certain scripts.
How to avoid installation of potentially unwanted applications?
Always download software using only official and trustworthy websites (or other sources) and direct links. Various third-party tools such as third-party software installers, peer-to-peer networks, unofficial websites, etc., should not be used. Never skip any download or installation set-up steps without checking all the "Custom", "Advanced" and other options/settings. If there are any additionally included applications that you do not wish to install (or download) deselect them and only then finish the process. Avoid clicking on ads that appear while visiting questionable websites. It is common that such ads open other websites of this kind or cause unwanted downloads, installations. Remove all suspicious, unwanted extensions, add-ons, or plug-ins from a web browser and programs of this kind from the operating system. If your computer is already infected with Nok App, we recommend running a scan with Malwarebytes for Windows to automatically eliminate this browser hijacker.
Keysearchs.com redirects to google.com (GIF):
Website promoting Nok App browser hijacker:
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Malwarebytes is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
- What is Nok App?
- STEP 1. Uninstall Nok App application using Control Panel.
- STEP 2. Remove Nok App browser hijacker from Google Chrome.
- STEP 3. Remove keysearchs.com homepage and default search engine from Mozilla Firefox.
- STEP 4. Remove keysearchs.com redirect from Safari.
- STEP 5. Remove rogue plug-ins from Microsoft Edge.
- STEP 6. Remove keysearchs.com redirect from Internet Explorer.
Nok App browser hijacker removal:
Windows 7 users:
Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.
Windows XP users:
Click Start, choose Settings and click Control Panel. Locate and click Add or Remove Programs.
Windows 10 and Windows 8 users:
Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.
Mac OSX users:
Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.
In the uninstall programs window: look for any recently installed suspicious applications (for example, "Nok App"), select these entries and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted applications (which cause browser redirects to the keysearchs.com website), scan your computer for any remaining unwanted components. To scan your computer, use recommended malware removal software.
Nok App browser hijacker removal from Internet browsers:
Video showing how to remove browser redirects:
Remove malicious extensions from Google Chrome:
Click the Chrome menu icon (at the top right corner of Google Chrome), select "More tools" and click "Extensions". Locate "Nok App" and other recently-installed suspicious browser add-ons, and remove them.
Change your homepage:
Click the Chrome menu icon (at the top right corner of Google Chrome), select "Settings". In the "On startup" section, disable "Nok App", look for a browser hijacker URL (hxxp://www.keysearchs.com) below the “Open a specific or set of pages” option. If present click on the three vertical dots icon and select “Remove”.
Change your default search engine:
To change your default search engine in Google Chrome: Click the Chrome menu icon (at the top right corner of Google Chrome), select "Settings", in the "Search engine" section, click "Manage search engines...", in the opened list look for "keysearchs.com", when located click the three vertical dots near this URL and select "Remove from list".
If you continue to have problems with removal of the nok app redirect, reset your Google Chrome browser settings. Click the Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.
After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.
In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.
Remove malicious plugins from Mozilla Firefox:
Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click on "Extensions" and remove "Nok App", as well as all other recently installed browser plug-ins.
Change your homepage:
To reset your homepage, click the Firefox menu (at the top right corner of the main window), then select "Options", in the opened window disable "Nok App", remove hxxp://keysearchs.com and enter your preferred domain, which will open each time you start Mozilla Firefox.
Change your default search engine:
In the URL address bar, type about:config and press Enter.
Click "I'll be careful, I promise!".
In the search filter at the top, type: "extensionControlled"
Set both results to "false" by either double-clicking each entry or clicking the button.
Computer users who have problems with nok app redirect removal can reset their Mozilla Firefox settings.
Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.
Select Troubleshooting Information.
In the opened window, click the Refresh Firefox button.
In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.
Remove malicious extensions from Safari:
Make sure your Safari browser is active and click Safari menu, then select Preferences...
In the preferences window select the Extensions tab. Look for any recently installed suspicious extensions and uninstall them.
In the preferences window select General tab and make sure that your homepage is set to a preferred URL, if its altered by a browser hijacker - change it.
In the preferences window select Search tab and make sure that your preferred Internet search engine is selected.
Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...
In the opened window select all history and click the Clear History button.
Remove malicious extensions from Microsoft Edge:
Click the Edge menu icon (at the top right corner of Microsoft Edge), select "Extensions". Locate any recently-installed suspicious browser add-ons, and remove them.
Change your homepage and new tab settings:
Click the Edge menu icon (at the top right corner of Microsoft Edge), select "Settings". In the "On startup" section look for the name of the browser hijacker and click "Disable".
Change your default Internet search engine:
To change your default search engine in Microsoft Edge: Click the Edge menu icon (at the top right corner of Microsoft Edge), select "Privacy and services", scroll to bottom of the page and select "Address bar". In the "Search engines used in address bar" section look for the name of the unwanted Internet search engine, when located click the "Disable" button near it. Alternatively you can click on "Manage search engines", in the opened menu look for unwanted Internet search engine. Click on the puzzle icon near it and select "Disable".
If you continue to have problems with removal of the nok app redirect, reset your Microsoft Edge browser settings. Click the Edge menu icon (at the top right corner of Microsoft Edge) and select Settings.
In the opened settings menu select Reset settings.
Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.
- If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.
Remove malicious add-ons from Internet Explorer:
Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently installed suspicious extensions, select these entries and click "Remove".
Change your homepage:
Click the "gear" icon (at the top right corner of Internet Explorer), select "Internet Options", in the opened window remove hxxp://keysearchs.com and enter your preferred domain, which will open each time you launch Internet Explorer. You can also enter about: blank to open a blank page when you start Internet Explorer.
Change your default search engine:
Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". In the opened window, select "Search Providers", set "Google", "Bing", or any other preferred search engine as your default and then remove "Nok App".
If you continue to have problems with removal of the nok app redirect, reset your Internet Explorer settings to default.
Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.
Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.
Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.
In the opened window, select the Advanced tab.
Click the Reset button.
Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.
A browser hijacker is a type of adware infection that modifies Internet browser settings by assigning the homepage and default Internet search engine settings to some other (unwanted) website URL. Commonly, this type of adware infiltrates operating systems through free software downloads. If your download is managed by a download client, ensure that you decline offers to install advertised toolbars or applications that seek to change your homepage and default Internet search engine settings.
If you are experiencing problems while trying to remove nok app redirect from your Internet browsers, please ask for assistance in our malware support forum.
Post a comment:
If you have additional information on nok app redirect or it's removal please share your knowledge in the comments section below.