Written by Tomas Meskauskas on (updated)
What is i-search.us.com?
I-search.us.com is described as a legitimate website, which can be used as a homepage and default search engine. This website is distributed using a deceptive free software marketing method called 'bundling' - stealth installation of third-party apps together with other software.
After successful infiltration on Internet Explorer, Google Chrome, and Mozilla Firefox, this browser hijacker assigns the default search engine, new tab URL, and homepage settings to i-search.us.com.
Additionally, it installs together with several applications called 'helper objects', which are developed to prevent users from reverting these changes. Users commonly install i-search.us.com together with software downloaded from freeware download websites.
Popular freeware download websites (for example, download.com, soft32.com, and softonic.com) monetize their traffic and free services by employing small 'download programs' (also called 'installers', 'downloaded managers', 'download clients', etc.) These applications offer installation of third-party apps (often categorized as adware or malware) together with the chosen free software.
Following computer infiltration, the user observes intrusive online advertisements that are likely to cause further computer infections.
Moreover, these rogue applications collect information that may be personally identifiable. Thus, the presence of this third-party software on your system may lead to serious privacy issues. You are strongly advised against the use of i-search.us.com as your default search engine, since the displayed search results can cause further infections.
I-search.us.com is similar to other regular browser hijackers. For example: searchult, dregol, and palikan. These browser hijackers have identical behavior to i-search.us.com and provide no real value to the user - they are developed to generate revenue by the display of ads, redirecting users to various dubious websites, and sharing collected data with third parties.
To avoid these infections, closely inspect each step when downloading free software and never accept offers to install additional apps. Furthermore, downloaded software should be installed using the 'Custom' or 'Advanced' installation options, rather than 'Quick' or 'Typical' - this will reveal any third-party apps included for installation and allow you to opt-out.
If your browser continually redirects you to the i-search.us.com website without your consent, the following removal guide will help you to eliminate this problem from your system.
Deceptive free software installer used in i-search.us.com browser hijacker distribution (this browser hijacker comes bundled with a program called "YT Accelerator"):
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
- What is i-search.us.com?
- STEP 1. Uninstall i-search.us.com application using Control Panel.
- STEP 2. Remove i-search.us.com redirect from Internet Explorer.
- STEP 3. Remove i-search.us.com browser hijacker from Google Chrome.
- STEP 4. Remove i-search.us.com homepage and default search engine from Mozilla Firefox.
- STEP 5. Remove i-search.us.com redirect from Safari.
- STEP 6. Remove rogue plug-ins from Microsoft Edge.
I-search.us.com browser hijacker removal:
Windows 11 users:
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:
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:
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:
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 “Youtube Accelerator” (and other recently-installed suspicious applications) , select these entries and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted programs that cause browser redirects to the i-search.us.com website, scan your computer for any remaining unwanted components. To scan your computer, use recommended malware removal software.
i-search.us.com browser hijacker removal from Internet browsers:
Video showing how to remove browser redirects:
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 "YTAHelper", and other 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://i-search.us.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 "Search".
If you continue to have problems with removal of the i-search.us.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.
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.
Remove malicious extensions from Google Chrome:
Click the Chrome menu icon (at the top right corner of Google Chrome), select "Tools" and click "Extensions". Locate "Youtube Accelerator", and and other recently-installed suspicious plug-ins, select these entries and click the trash can icon.
Change your homepage:
Click the Chrome menu icon (at the top right corner of Google Chrome), select "Settings". In the "On startup" section, click "set pages", hover your mouse over hxxp://i-search.us.com and click the x symbol. Now, you can add your preferred website as your homepage.
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" section, click "Manage Search Engines...", remove "Search" and add or select your preferred domain.
If you continue to have problems with removal of the i-search.us.com browser hijacker, 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 "Extensions" and remove "Youtube Accelerator Helper" (and 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, remove hxxp://i-search.us.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: "i-search.us.com"
Right-click on the found preferences and select "Reset" to restore default values.
Computer users who have problems with i-search.us.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, 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 i-search.us.com browser hijacker, 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.
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.
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