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How to remove the One search pro browser hijacker

Also Known As: tailsearch.com redirect
Damage level: Medium

What is the One search pro browser hijacker?

One search pro is a browser hijacker designed to promote tailsearch.com (a fake search engine). Typically, software within this classification promotes bogus search engines by making modifications to browser settings, however, One search pro operates slightly differently.

The common trait throughout browser hijackers is data tracking. One search pro specifically gathers search queries via tailsearch.com. Due to the dubious methods used to proliferate One search pro, it is classified as a Potentially Unwanted Application (PUA).

tailsearch.com browser hijacker GIF

Browser hijackers primarily target Google Chrome, Mozilla Firefox, Internet Explorer and other popular browsers with large user bases. The usual operation is assigning the browser homepage, default search engine and new tab/window URLs to the addresses of fake search engines.

Therefore, with this type of software installed, the homepage is changed, and new browser tabs/windows opened and search queries typed into the URL bar redirect to the promoted address, however, One search pro does not alter the homepage or the new tab/window URLs.

When users attempt to search (type a search query), they are redirected to search results provided by the Google search engine with tailsearch.com inserted into the redirection chain. Fake search engines are rarely able to generate unique results, and so they tend to redirect to genuine sites (e.g. Google, Yahoo, Bing, etc.).

Furthermore, some browser hijackers can restrict/deny access to the browser settings and/or undo any permitted changes made. As mentioned, most browser hijackers have data tracking capabilities. One search pro is no exception to this, as it collects search queries through tailsearch.com, which is a serious privacy concern.

One search pro might target other information relating to browsing activity. Data of interest usually includes IP addresses, geolocations, URLs visited, pages viewed, and even personally identifiable information. The gathered data is monetized by browser hijacker developers who share it with and/or sell it to third parties (potentially, cyber criminals).

To summarize, the presence of data-tracking software on browsers/systems can lead to serious privacy issues, financial loss and identity theft. To ensure device integrity and user safety, all suspect applications and browser extensions/plug-ins must be removed without delay.

Threat Summary:
Name One search pro
Threat Type Browser Hijacker, Redirect, Search Hijacker, Toolbar, Unwanted New Tab.
Browser Extension(s) One search pro
Promoted URL tailsearch.com
Serving IP Address (tailsearch.com) 172.67.194.248
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)

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Package Tracker GuruMyWeatherFree and Online Radio Finder Tab are some examples of other browser hijackers. They may seem normal and useful, and offer a wide variety of functionality, however, they are seldom operational. In fact, this information is true of most PUAs.

The sole purpose of these unwanted applications is to generate revenue for the developers. Regular users receive no real value and can instead experience serious problems. Rather than delivering any real value, PUAs can hijack browsers, cause redirects, deliver intrusive advertisements (e.g. pop-ups, banners, coupons, etc.) and collect private information.

How did One search pro install on my computer?

Certain PUAs (including One search pro) have "official" download web pages. These apps can also be downloaded/installed with other software. This deceptive marketing technique of packing regular programs with unwanted or malicious additions is called "bundling".

By rushing through download/installation processes (e.g. ignoring terms, skipping steps, using pre-set options, etc.), many users risk unintentionally allowing bundled content into the system. Intrusive advertisements proliferate PUAs as well. Once clicked, they can execute scripts to make stealthy downloads/installations.

How to avoid installation of potentially unwanted applications?

You are advised to research all software before download/installation and/or purchase. Use only official and verified download channels, since untrusted sources such as unofficial and free file-hosting websites, Peer-to-Peer sharing networks and other third party downloaders can offer deceptive and bundled content.

Download and installation processes must be treated with caution. Read the terms, study all available options, use the "Custom" or "Advanced" settings and decline offers to download/install additional apps, tools, features, etc. It is also important to exercise caution when browsing.

Intrusive ads may seem legitimate, however, they can redirect to dubious sites (e.g. gambling, pornography, adult-dating, and so on).

If you encounter ads or redirects of this kind, inspect your devices and immediately eliminate all suspicious applications and browser extensions/plug-ins. If your computer is already infected with One search pro, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate this browser hijacker.

One search pro browser hijacker asking for various permissions:

One search pro browser hijacker required permissions

Website promoting One search pro browser hijacker:

Website used to promote One search pro browser hijacker

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Quick menu:

One search pro browser hijacker removal:

Windows 11 users:

Accessing Apps and Features in Windows 11

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Accessing Programs and Features (uninstall) in Windows 8

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.

Windows 7 users:

Accessing Programs and Features (uninstall) in Windows 7

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Uninstall app in OSX (Mac)

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.

tailsearch.com browser hijacker uninstall via Control Panel

In the uninstall programs window: look for any recently installed suspicious applications (for example, "One search pro"), select these entries and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted applications that cause browser redirects to the tailsearch.com website, scan your computer for any remaining unwanted components. To scan your computer, use recommended malware removal software.

One search pro browser hijacker removal from Internet browsers:

Video showing how to remove browser redirects:

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing tailsearch.com related Internet Explorer extensions

Click the "gear" icon Internet Explorer options 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:

Removing tailsearch.com from Internet Explorer homepage

Click the "gear" icon Internet Explorer options icon (at the top right corner of Internet Explorer), select "Internet Options", in the opened window remove hxxp://tailsearch.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:

Removing tailsearch.com from Internet Explorer default search engine

Click the "gear" icon Internet Explorer options 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 "One search pro".

Optional method:

If you continue to have problems with removal of the tailsearch.com 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.

Resetting Internet Explorer settings to default on Windows XP

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.

Resetting Internet Explorer settings to default on Windows 7

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

Reseting Internet Explorer settings to default in Windows 8 - accessing

In the opened window, select the Advanced tab.

Resetting Internet Explorer settings to default on Windows 8 - Internet options advanced tab

Click the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - click the Reset button in the Internet options advanced tab

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - confirm settings reset to default by clicking the reset button

Google Chrome logoRemove malicious extensions from Google Chrome:

Removing tailsearch.com related Google Chrome extensions

Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome), select "More tools" and click "Extensions". Locate "One search pro" and other recently-installed suspicious browser add-ons, and remove them.

Change your homepage:

Removing tailsearch.com from Google Chrome homepage

Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome), select "Settings". In the "On startup" section, disable "One search pro", look for a browser hijacker URL (hxxp://www.tailsearch.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:

Removing tailsearch.com from Google Chrome default search engine

To change your default search engine in Google Chrome: Click the Chrome menu icon Google 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 "tailsearch.com", when located click the three vertical dots near this URL and select "Remove from list".

Optional method:

If you continue to have problems with removal of the tailsearch.com redirect, reset your Google Chrome browser settings. Click the Chrome menu icon Google 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.

Google Chrome settings reset step 1

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

Google Chrome settings reset step 2

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Google Chrome settings reset step 3

Mozilla Firefox logoRemove malicious plug-ins from Mozilla Firefox:

Removing tailsearch.com related Mozilla Firefox extensions

Click the Firefox menu firefox menu icon (at the top right corner of the main window), select "Add-ons". Click on "Extensions" and remove "One search pro", as well as all other recently installed browser plug-ins.

Change your homepage:

Removing tailsearch.com from Mozilla Firefox homepage

To reset your homepage, click the Firefox menu firefox menu icon (at the top right corner of the main window), then select "Options", in the opened window disable "One search pro", remove hxxp://tailsearch.com and enter your preferred domain, which will open each time you start Mozilla Firefox.

Change your default search engine:

Removing tailsearch.com from Mozilla Firefox 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 Mozilla Firefox switch about:config entry button button.

Optional method:

Computer users who have problems with tailsearch.com redirect removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, firefox menu icon in the opened menu, click Help.

Accessing settings (Reset Firefox to default settings step 1)

Select Troubleshooting Information.

Accessing Troubleshooting Information (Reset Firefox to default settings step 2)

In the opened window, click the Refresh Firefox button.

Clicking on Refresh Firefox button (Reset Firefox to default settings step 3)

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Confirm your want to reset Firefox settings to default (Reset Firefox to default settings step 4)

safari browser logoRemove malicious extensions from Safari:

Removing browser hijackers from safari step 1 - accessing preferences

Make sure your Safari browser is active and click Safari menu, then select Preferences...

removing browser hijacker from safari step 2 - removing extensions

In the preferences window select the Extensions tab. Look for any recently installed suspicious extensions and uninstall them.

Removing browser hijackers from safari step 3 - changing homepage

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.

removing browser hijackers from safari step 4 - changing the default Internet search engine

In the preferences window select Search tab and make sure that your preferred Internet search engine is selected.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

resetting safari step 1

In the opened window select all history and click the Clear History button.

resetting safari step 2

Microsoft Edge (Chromium) logoRemove malicious extensions from Microsoft Edge:

Removing browser hijackers from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) 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:

Removing browser hijackers from Microsoft Edge step 2

Click the Edge menu icon Microsoft Edge (chromium) 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:

Removing browser hijackers from Microsoft Edge step 3

To change your default search engine in Microsoft Edge: Click the Edge menu icon Microsoft Edge (chromium) 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 Microsoft Edge (Chromium) puzzle icon near it and select "Disable".

Optional method:

If you continue to have problems with removal of the tailsearch.com redirect, reset your Microsoft Edge browser settings. Click the Edge menu icon Microsoft Edge (chromium) menu icon (at the top right corner of Microsoft Edge) and select Settings.

Microsoft Edge (Chromium) reset step 1

In the opened settings menu select Reset settings.

Microsoft Edge (Chromium) reset step 2

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.

Microsoft Edge (Chromium) reset step 3

  • If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

declining installation of browser hijackers while downloading free software sampleA 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.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

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Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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