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Tudonav.com Redirect

Also Known As: tudonav.com browser hijacker
Damage level: Medium

What is tudonav.com?

tudonav.com is another fake search engine that supposedly enhances the browsing experience by generating improved results and providing quick access to various popular websites.

Judging on appearance alone, tudonav.com may seem legitimate and useful, however, this site is promoted using rogue download/installation set-ups that modify browser options without consent. Furthermore, note that tudonav.com gathers various information relating to users' Internet browsing activity.

tudonav.com browser hijacker

Rogue set-ups target Internet Explorer, Google Chrome, and Mozilla Firefox. Following infiltration, they assign tudonav.com as the new tab URL, default search engine, and homepage browser options. In addition, set-ups stealthily install a number of third party applications and browser plug-ins (so-called "helper objects").

Although these changes may seem insignificant, users are unable to revert them. Research shows that these apps and add-ons reassign browser settings when attempts are made to change them.

Therefore, returning browsers to their previous states becomes impossible and users are encouraged to visit tudonav.com when they open a new browser tab or search via the URL bar. These redirects significantly diminish the browsing experience. Be aware that tudonav.com (and "helper objects") continually records information that might be personally identifiable.

Once recorded, this information is shared with third parties (potentially, cyber criminals) who misuse it to generate revenue. Therefore, data tracking can lead to serious privacy issues or even identity theft. If you encounter redirects to tudonav.com, immediately remove all suspicious applications and browser plug-ins.

Threat Summary:
Name tudonav.com browser hijacker
Threat Type Browser Hijacker, Redirect, Search Hijacker, Toolbar, Unwanted New Tab
Symptoms Manipulated Internet browser(s) settings (homepage, default Internet search engine, new tab settings). User's are forced to visit 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 browsing tracking (potential privacy issues), displaying of unwanted ads, redirects to shady websites.
Malware Removal (Windows)

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tudonav.com shares many similarities with qogotte.com, bronav.com, qip.ru, and dozens of other fake search engines. By offering improved results and various other "useful features" (weather forecasts, latest news, shortcuts to popular sites, etc.) websites such as tudonav.com attempt to give the impression of legitimacy, however, their only purpose is to generate revenue for the developers.

Rather than delivering any real value for regular users, fake search engines cause unwanted redirects and gather sensitive information. Some even generate misleading results and intrusive advertisements (coupons, banners, etc.) Research shows that they typically redirect to malicious websites. Therefore, using fake search engines risks various computer infections.

How did tudonav.com install on my computer?

As mentioned above, tudonav.com is promoted using rogue downloaders/installers. This deceptive marketing method is called "bundling". Developers know that users often rush download/installation processes and skip steps.

Therefore, they hide information regarding modification of browser settings within "Custom/Advanced" options (or other sections) of the download/installation. By rushing and skipping steps, many users inadvertently grant set-ups permission to modify settings, expose their systems to risk of various infections, and compromise their privacy.

How to avoid installation of potentially unwanted applications?

Potentially unwanted programs are distributed using the "bundling" method and intrusive advertisements (which lead to malicious websites and execute scripts that stealthily download and install malware). Therefore, to prevent PUP infiltration, be very cautious when browsing the Internet and downloading/installing software.

Bear in mind that intrusive advertisements typically seem legitimate, since developers invest many resources into their design. Once clicked, however, they redirect to dubious websites (gambling, adult dating, pornography, and similar). Most are delivered by adware-type PUPs. If you experience suspicious redirects, remove all dubious applications and browser plug-ins.

You are strongly advised to carefully analyze each window of the download/installation dialogs and opt-out of all additionally-included programs.

Download apps only from official sources only, using direct download links. Third party downloaders/installers are monetized by promoting ("bundling") PUPs, and thus should never be used. The key to computer safety is caution.

IMPORTANT NOTE! Tudonav.com installs its Google Chrome extension as Administrator (read more here), thereby preventing removal. Therefore, before taking any further removal steps, perform these actions:

1) Open the Command Prompt by clicking the start menu button and typing "command prompt". Right click the "Command Prompt" result and select "Run as Administrator":

tudonav.com Run Command Prompt

2) Execute the following commands:

  • rd /S /Q "%WinDir%\System32\GroupPolicyUsers"
  • rd /S /Q "%WinDir%\System32\GroupPolicy"
  • gpupdate /force

tudonav.com Command Prompt commands

After performing these actions, you can proceed with further removal steps for this browser hijacker.

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Quick menu:

tudonav.com 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.

tudonav.com browser hijacker uninstall via Control Panel

In the uninstall programs window: look for any recently-installed suspicious applications, select these entries and click "Uninstall" or "Remove".

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

tudonav.com browser hijacker removal from Internet browsers:

Video showing how to remove browser redirects:

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing tudonav.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 tudonav.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://tudonav.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 tudonav.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 "tudonav.com".

Optional method:

If you continue to have problems with removal of the tudonav.com browser hijacker, 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 tudonav.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 all recently-installed suspicious browser add-ons and remove them.

Change your homepage:

Removing tudonav.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, look for a browser hijacker URL (hxxp://www.tudonav.com) below the “Open a specific or set of pages” option. If present, click the three vertical dots icon and select “Remove”.

Change your default search engine:

Removing tudonav.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 "tudonav.com", and 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 tudonav.com browser hijacker, 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 tudonav.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 "Extensions" and remove all recently-installed browser plug-ins.

Change your homepage:

Removing tudonav.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, remove hxxp://tudonav.com and enter your preferred domain, which will open each time you start Mozilla Firefox.

Change your default search engine:

Removing tudonav.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: "tudonav.com"
Right-click on the found preferences and select "Reset" to restore default values.

Optional method:

Computer users who have problems with tudonav.com browser hijacker 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 tudonav.com browser hijacker, 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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