Remove HopStrem Browser Extension (Virus Removal Guide)

HopStrem is a browser extension that claims to be an adblocker but instead displays advertisements in the browser. This guide teaches you how to remove HopStrem browser extension for free by following easy step-by-step instructions.

HopStrem is a browser extension that displays pop-up ads and unwanted advertisements not originating from the sites you are browsing.

Image: HopStrem Chrome extension
Image: HopStrem Chrome extension

What is HopStrem?

HopStrem is a browser extension that claims to be an adblocker but instead displays advertisements in the browser. When installed, this extension will open new tabs in the browser that display advertisements trying to sell software, push fake software updates, and tech support scams.

When the HopStrem browser hijacker is installed on a computer, common symptoms include:

  • The HopStrem program or browser extension is installed on your computer.
  • Advertisements appear in places they shouldn’t be.
  • Website links redirect to sites different from what you expected.
  • Browser popups appear which recommend fake updates or other software.
  • Other unwanted programs might get installed without your knowledge.

How did HopStrem get on my computer?

The HopStrem extension is currently being distributed using advertisements similar to the one below.

Image: Malicious advertisement distributing HopStrem extension
Image: Malicious advertisement distributing HopStrem extension

Less than reputable sites can redirect your browser to these HopStrem ads to generate advertising revenue. If this happens, you can close the page and install a legitimate adblocker like AdGuard to remove ads from the sites you visit.
However, if you continuously see these HopStrem ads, then your computer might be infected with a malicious program, and we will need to scan your device for malware and remove it.

If you do not know how this extension was installed or are concerned other extensions or unwanted programs may be installed on your device, you can use the removal guide below.

Remove HopStrem browser hijacker (Virus Removal Guide)

This malware removal guide may appear overwhelming due to the number of steps and numerous programs that are being used. We have only written it this way to provide clear, detailed, and easy-to-understand instructions that anyone can use to remove malware for free.
Please perform all the steps in the correct order. If you have any questions or doubts at any point, stop and ask for our assistance.

HopStrem, malicious extensions, and other malware can infect Windows, Mac, or Android devices so we’ve covered below all these operating systems in this removal guide.

Remove HopStrem from Windows

To remove HopStrem from Windows, follow these steps:


STEP 1: Use AdwCleaner to remove HopStrem malicious browser policies

In this first step, we will use AdwCleaner to remove the malicious browser policies that were set by the HopStrem browser hijacker on your computer and delete malicious browser extensions.

AdwCleaner is a free popular on-demand scanner that can detect and remove malware that even the most well-known anti-virus and anti-malware applications fail to find. This on-demand scanner includes a lot of tools that can be used to fix the side effects of browser hijackers.

  1. Download AdwCleaner.

    You can download AdwCleaner by clicking the link below.

    ADWCLEANER DOWNLOAD LINK
    (The above link will open a new web page from where you can download AdwCleaner)
  2. Double-click on the setup file.

    Double-click on the file named “adwcleaner_x.x.x.exe” to start AdwCleaner. In most cases, downloaded files are saved to the Downloads folder.
    AdwCleaner Setup File
    You may be presented with a User Account Control dialog asking you if you want to run this file. If this happens, you should click “Yes” to continue with the installation.
    AdwCleaner and Windows User Account Control Pop-up

  3. Enable “Reset Chrome policies” to remove HopStrem browser policies.

    When AdwCleaner starts, on the left side of the window, click on “Settings” and then then enable “Reset Chrome policies“.
    Enable Reset Chrome policies to remove HopStrem malware

  4. Click on “Scan Now”.

    On the left side of the window, click on “Dashboard” and then click “Scan Now” to perform a system scan.
    AdwCleaner Scan Now button

  5. Wait for the AdwCleaner scan to complete.

    AdwCleaner will now scan your computer for the HopStrem browser hijacker and other malicious programs. This process can take a few minutes.
    AdwCleaner Scanning for HopStrem browser hijacker and other malicious programs

  6. Click on “Clean & Repair”.

    When AdwCleaner has finished it will display a list of all the malware that the program found. Click on the “Clean & Repair” button to remove the HopStrem browser hijacker and other malicious programs from your computer.
    Click Clean to remove HopStrem browser hijacker

  7. Click on “Clean & Restart Now”

    When the malware removal process is complete, AdwCleaner may need to restart your device. Click on the “Clean & Restart Now” button to finish the removal process.
    Click Clean & Restart Now to remove viruses


STEP 2: Remove HopStrem extension and search engine from the browser

In this second step, we will remove the HopStrem browser extension from your browser and change to default any settings that might have been changed by this browser hijacker.

ChromeFirefoxMicrosoft EdgeInternet Explorer

Remove HopStrem browser hijacker from Google Chrome

To remove HopStrem from Google Chrome, we will remove the browser extension and then check the settings.

  1. Remove the HopStrem browser extension.

    In the top right corner, click on Chrome’s main menu button, represented by three vertical dots. When the drop-down menu appears, click on “More tools“, then click on “Extensions“.

    Go to Extensions and remove HopStrem

    The “Extensions” screen will be displayed with a list of all the extensions installed on Chrome. Scroll through the list and search for the HopStrem browser extension, and then click on “Remove” to remove it.

    There may be other malicious extension installed on your browser. Look out for any suspicious browser extension that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine extension.

    Remove the HopStrem extension from Chrome

  2. Change the search engine to Google.

    In the top right corner, click on Chrome’s main menu button, represented by three vertical dots. When the drop-down menu appears, click on “Settings“.
    Open the Settings menu

    On the left side of the window, click on “Search engine“, then click “Manage search engines…“. In the opened list look for HopStrem, when located click the three vertical dots near this URL and select “Remove from list“.

    Find HopStrem and remove it as default search engine

    Next, find Google Search, click the three vertical dots and select “Make default“.

  3. Check the homepage and new tab settings.

    In the top right corner, click on Chrome’s main menu button, represented by three vertical dots. When the drop-down menu appears, click on “Settings“.
    Open the Settings menu

    In the “On startup” section, disable “HopStrem” or any other extension, then select “Open the New Tab page” as your preferred setting.
    Remove HopStrem as startup page

If your browser is still being redirected by the HopStrem extension after you’ve performed the above steps, we strongly recommend resetting Google Chrome to its default settings. To do this, type “chrome://settings/resetProfileSettings” in your browser URL bar, then click on “Reset settings“.

Remove HopStrem browser hijacker from Firefox

To remove the HopStrem extension from Firefox we will reset the browser settings to its default. The reset feature fixes many issues by restoring Firefox to its factory default state while saving your essential information like bookmarks, passwords, web form auto-fill information, browsing history, and open tabs.

  1. Click the menu icon, then click on “Help”.

    Click on Firefox’s main menu button, represented by three horizontal lines. When the drop-down menu appears, select the option labeled “Help“.
    Click on the Firefox Menu button then select Help button

  2. Click “Troubleshooting Information”.

    From the Help menu, click on “Troubleshooting Information“.
    Click on Troubleshooting Information button

  3. Click on “Refresh Firefox”

    Click the “Refresh Firefox” button in the upper-right corner of the “Troubleshooting Information” page.
    Click on the Refresh Firefox button

  4. Confirm.

    To continue, click on the “Refresh Firefox” button in the new confirmation window that opens.
    Click again on Refresh Firefox

  5. Click “Finish”.

    Firefox will close itself and will revert to its default settings. When it’s done, a window will list the information that was imported. Click on “Finish“.

    Your old Firefox profile will be placed on your desktop in a folder named “Old Firefox Data“. If the reset didn’t fix your problem you can restore some of the information not saved by copying files to the new profile that was created. If you don’t need this folder any longer, you should delete it as it contains sensitive information.

Remove HopStrem browser hijacker from Microsoft Edge

To remove the HopStrem extension from Microsoft Edge we will reset the browser settings to its default. This will reset your startup page, new tab page, search engine, and pinned tabs. It will also disable all extensions and clear temporary data like cookies. Your favorites, history and saved passwords will not be cleared.

  1. Open the “Settings” menu.

    In the top right corner, click on Microsoft Edge’s main menu button, represented by three horizontal dots. When the drop-down menu appears, click on “Settings“.”.
    Open the Settings menu

  2. Click on “Reset Settings”.

    On the left side of the window, click on “Reset Settings”.
    Click Reset Settings option

  3. Click on “Restore settings to their default values”.

    In the main window, click on “Restore settings to their default values”.
    Click on Restore settings to their default values option

  4. Click “Reset”.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue on with the reset process. To complete the restoration process, click on the “Reset” button.
    Click Reset to reset your browser

Remove HopStrem browser hijacker from Internet Explorer

To remove the HopStrem extension from Internet Explorer we will reset the browser settings to its default. You can reset Internet Explorer settings to return them to the state they were in when Internet Explorer was first installed on your computer.

  1. Go to “Internet Options”.

    Open Internet Explorer, click on the gear icon in the upper right part of your browser, then select “Internet Options“.

  2. Select the “Advanced” tab, then click “Reset”

    In the “Internet Options” dialog box, select the “Advanced” tab, then click on the “Reset” button.

  3. Click on “Reset”.

    In the “Reset Internet Explorer settings” section, select the “Delete personal settings” checkbox, then click on the “Reset” button.

  4. Click on “Close”.

    When Internet Explorer has completed its task, click on the “Close” button in the confirmation dialogue box.
    Close your browser and then you can open Internet Explorer again.

Now that we have removed HopStrem from your browser, we will scan the computer with Malwarebytes Anti-Malware to remove any malicious files or registry keys from your computer.


STEP 2: Use Malwarebytes to remove HopStrem browser hijacker

In this next step, we will install Malwarebytes to scan and remove the HopStrem malicious files and registry key from your computer.

Malwarebytes is one of the most popular and most used anti-malware software for Windows, and for good reasons. It is able to destroy many types of malware that other software tends to miss, without costing you absolutely nothing. When it comes to cleaning up an infected device, Malwarebytes has always been free and we recommend it as an essential tool in the fight against malware.

  1. Download Malwarebytes Free.

    You can download Malwarebytes by clicking the link below.

    MALWAREBYTES DOWNLOAD LINK
    (The above link will open a new page from where you can download Malwarebytes)
  2. Double-click on the Malwarebytes setup file.

    When Malwarebytes has finished downloading, double-click on the MBSetup file to install Malwarebytes on your computer. In most cases, downloaded files are saved to the Downloads folder.

    Double-click on MBSetup installer to install Malwarebytes
    You may be presented with an User Account Control pop-up asking if you want to allow Malwarebytes to make changes to your device. If this happens, you should click “Yes” to continue with the Malwarebytes installation.
    Windows asking for permission to run the Malwarebytes installer

  3. Follow the on-screen prompts to install Malwarebytes.

    When the Malwarebytes installation begins, you will see the Malwarebytes setup wizard which will guide you through the installation process. The Malwarebytes installer will first ask you on what type of computer are you installing this program, click either Personal Computer or Work Computer.
    Malwarebytes setup: Click on Personal Computer step 1

    On the next screen, click “Install” to install Malwarebytes on your computer.
    Malwarebytes Setup: Click on Install

    When your Malwarebytes installation completes, the program opens to the Welcome to Malwarebytes screen. Click the “Get started” button.

  4. Select “Use Malwarebytes Free”.

    After installing Malwarebytes, you’ll be prompted to select between the Free and the Premium version. The Malwarebytes Premium edition includes preventative tools like real-time scanning and ransomware protection; however, we will use the Free version to clean up the computer.
    Click on “Use Malwarebytes Free“.
    Click on Use Malwarebytes Free to continue with the install

  5. Click on “Scan”.

    To scan your computer with Malwarebytes, click on the “Scan” button. Malwarebytes will automatically update the antivirus database and start scanning your computer for HopStrem browser hijacker and other malicious programs.
    Click on Scan button for HopStrem

  6. Wait for the Malwarebytes scan to complete.

    Malwarebytes will scan your computer for HopStrem browser hijacker and other malicious programs. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
    Malwarebytes scanning for HopStrem virus

  7. Click on “Quarantine”.

    When the scan has completed, you will be presented with a screen showing the malware infections that Malwarebytes has detected. To remove the HopStrem extension and other malicious programs that Malwarebytes has found, click on the “Quarantine” button.
    Review the malicious programs and click on Quarantine to remove HopStrem

  8. Restart computer.

    Malwarebytes will now remove all the malicious files and registry keys that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your computer.
    Malwarebytes requesting to restart computer to complete the HopStrem removal process
    When the malware removal process is complete, you can close Malwarebytes and continue with the rest of the instructions.


STEP 4: Use HitmanPro to scan your computer for HopStrem and other malware

In this final step, we will scan the computer with HitmanPro to ensure that no other malicious programs are installed on your device.

HitmanPro is a second opinion scanner that takes a unique cloud-based approach to malware scanning. HitmanPro scans the behavior of active files and also files in locations where malware normally resides for suspicious activity. If it finds a suspicious file that’s not already known, HitmanPro sends it to its clouds to be scanned by two of the best antivirus engines today, which are Bitdefender and Kaspersky.

Although HitmanPro is shareware and costs $24.95 for 1 year on 1 PC, there is actually no limit in scanning. The limitation only kicks in when there is a need to remove or quarantine detected malware by HitmanPro on your system and by then, you can activate the one time 30-days trial to enable the cleanup.

  1. Download HitmanPro.

    You can download HitmanPro by clicking the link below.

    HITMANPRO DOWNLOAD LINK
    (The above link will open a new web page from where you can download HitmanPro)
  2. Install HitmanPro.

    When HitmanPro has finished downloading, double-click on “hitmanpro.exe” (for 32-bit versions of Windows) or “hitmanpro_x64.exe” (for 64-bit versions of Windows) to install this program on your PC. In most cases, downloaded files are saved to the Downloads folder.
    Double-click on the HitmanPro setup file - Help Guide
    You may be presented with an User Account Control pop-up asking if you want to allow HitmanPro to make changes to your device. If this happens, you should click “Yes” to continue with the installation.
    Windows asking for permissions to run the HitmanPro setup file - Help Guide

  3. Follow the on-screen prompts.

    When HitmanPro starts you will be presented with the start screen as shown below. Click on the “Next” button to perform a system scan.

    Click Next to install HitmanPro

    HitmanPro final installer screen

  4. Wait for the HitmanPro scan to complete.

    HitmanPro will now begin to scan your computer for HopStrem browser hijacker and other malicious programs.
    HitmanPro while scanning for HopStrem malware

  5. Click on “Next”.

    When HitmanPro has finished the scan, it will display a list of all the malware that the program has found. Click on the “Next” button to remove HopStrem adware and other malicious programs.
    HitmanPro scan summary. Click Next to remove HopStrem browser redirect

  6. Click on “Activate free license”.

    Click on the “Activate free license” button to begin the free 30 days trial and remove all the malicious files from your PC.
    Activate the free HitmanPro license keyEnter your email to complete the HitmanPro activation - Help Guide


Your computer should now be free of the HopStrem browser hijacker. If your current antivirus allowed this malicious program on your computer, you may want to consider purchasing Malwarebytes Premium to protect against these types of threats in the future.
If you are still having problems with your computer after completing these instructions, then please follow one of the steps:

Remove HopStrem from Mac

To remove HopStrem from Mac, follow these steps:


STEP 1: Remove malicious Profiles from your Mac

Profiles are used by IT admins in businesses to control the behavior of their Macs. These profiles can configure a Mac to do many different things, some of which are not otherwise possible.
When it comes to home users, adware and browser hijackers are using the configuration profile to prevent users from removing malicious programs from the computer. This also prevents the user from changing that behavior in the browser’s settings.
In this first step, we will check your computer to see if any configuration profiles are installed. To do this, follow the below steps:

  1. Open “System Preferences”

    From the Apple menu, select System Preferences.

  2. Search for “Profiles”

    When the System Preferences window opens, search for the Profiles icon.
    Search for Profiles in System Preferences

    If there isn’t a Profiles icon, you don’t have any profiles installed, which is normal and you can continue with the next steps.
  3. Remove the malicious profiles

    If there’s a Profile icon, click on it and select any suspicious profile that you want to remove, and then press the – (minus) button. Click Remove to remove the profile.
    Remove malicious profiles from your Mac


STEP 2: Remove HopStrem from Mac

In this next step, we will uninstall HopStrem and remove its files from your computer. Sometimes adware and browser hijackers can have a usable Uninstall entry that can be used to remove them.

  1. Quit “HopStrem”

    On the Apple menu bar, in the top-right corner, if you see the HopStrem icon, click on it and then select Quit.

  2. Open “Finder”

    Click the Finder application on your dock.
    Open Finder

  3. Click on “Applications”

    In the Finder left pane, click on “Applications“.
    Click on Applications

  4. Find and remove HopStrem.

    The “Applications” screen will be displayed with a list of all the app installed on your device. Scroll through the list until you find HopStrem, right-click it, and then click “Move to Trash”.

    There may be other malicious programs installed on your Mac. Look out for any suspicious program that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program.

    Find HopStrem and Remove It


STEP 3: Use Malwarebytes for Mac to remove HopStrem and other malware

In this third step, we will download, install and run a scan with Malwarebytes for Mac to remove HopStrem and other malware from your computer.

Malwarebytes for Mac is an on-demand scanner that takes out malware, adware, spyware, and other threats before they can infect your machine and ruin your day.

  1. Download Malwarebytes for Mac.

    You can download Malwarebytes for Mac by clicking the link below.

    MALWAREBYTES FOR MAC DOWNLOAD LINK
    (The above link will open a new page from where you can download Malwarebytes for Mac)
  2. Double-click on the Malwarebytes setup file.

    When Malwarebytes has finished downloading, double-click on the setup file to install Malwarebytes on your computer. In most cases, downloaded files are saved to the Downloads folder.

    Double-click on setup file to install Malwarebytes

  3. Follow the on-screen prompts to install Malwarebytes.

    When the Malwarebytes installation begins, you will see the Malwarebytes for Mac Installer which will guide you through the installation process. Click “Continue“, then keep following the prompts in order to continue with the installation process.

    Click Continue to install Malwarebytes for Mac

    Click again on Continue to install Malwarebytes for Mac for Mac

    Click Install to install Malwarebytes on Mac

    When your Malwarebytes installation completes, the program opens to the Welcome to Malwarebytes screen. Click the “Get started” button.

  4. Select “Personal Computer” or “Work Computer”.

    The Malwarebytes Welcome screen will first ask you on what type of computer are you installing this program, click either Personal Computer or Work Computer.
    Select Personal Computer or Work Computer mac

  5. Click on “Scan”.

    To scan your computer with Malwarebytes, click on the “Scan” button. Malwarebytes will automatically update the antivirus database and start scanning your computer for the HopStrem malware.
    Click on Scan button to start a system scan for HopStrem

  6. Wait for the Malwarebytes scan to complete.

    Malwarebytes will scan your computer for HopStrem and other malicious programs. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
    Wait for Malwarebytes for Mac to scan for HopStrem browser hijacker

  7. Click on “Quarantine”.

    When the scan has completed, you will be presented with a screen showing the malware infections that Malwarebytes has detected. To remove HopStrem and other malicious programs that Malwarebytes has found, click on the “Quarantine” button.
    Review the malicious programs and click on Quarantine HopStrem browser hijacker

  8. Restart computer.

    Malwarebytes will now remove HopStrem and other malicious files that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your computer.
    Malwarebytes For Mac requesting to restart computer
    When the malware removal process is complete, you can close Malwarebytes and continue with the rest of the instructions.


STEP 4: Remove HopStrem from Safari, Chrome, or Firefox

In this final step, we will remove the HopStrem browser extension, its search engine, and any spam browser notifications.

SafariChromeFirefox

Remove HopStrem browser hijacker from Safari

To remove HopStrem browser hijacker from Safari we will check if there are any malicious extensions install on your browser and what settings have been changed by this malicious program.

  1. Go to Safari’s “Preferences”.

    On the menu bar, click the “Safari” menu and select “Preferences”.
    On the Menu bar Click on Safari then Preference

  2. Check Homepage.

    This will open a new window with your Safari preferences, opened to the “General” tab. Some browser hijackers may change your default homepage, so in the Homepage field make sure it’s a web page you want to use as your start-up page.

    Change Homepage in Safari

  3. Click “Extensions”

    Next, click on the “Extensions” tab.
    Click on Extensions MacOS

  4. Find and uninstall HopStrem.

    The “Extensions” screen will be displayed with a list of all the extensions installed on Safari. Scroll through the list until you find the HopStrem extension, and then click on “Uninstall” to remove it.

    There may be other malicious extensions installed. Look out for any suspicious browser extension that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine extension. By default, there are no extensions installed on Safari so it’s safe to remove any extension.

    Click on Uninstall to remove HopStrem

  5. Remove spam notifications ads

    Click Preferences, click Websites, then click Notifications. Deselect “Allow websites to ask for permission to send push notifications”.

    Deselect Allow websites to ask for permission to send push notifications

If the above steps didn’t help you remove the HopStrem browser hijacker from Safari, you can follow the below steps:

  • Workaround for greyed out Safari’s homepage

    In some cases, after being changed by browser hijackers or malware, Safari’s home page can become stuck (greyed out). You will be able to edit the Homepage field in Safari’s preferences, but the change will not stick. This appears to be a bug, and there is an odd workaround. Try this:

    1. In Safari, choose Preferences from the Safari menu.
    2. In the window that opens, click the General icon (if necessary)
    3. Enter your desired home page in the “Homepage” field, but DO NOT press return!
    4. At the top of the window, click any of the other icons (eg, Tabs, AutoFill, etc).
    5. You may see a prompt asking for confirmation for changing the home page. If so, confirm.
    6. Switch back to the General page and check to make sure the home page has been changed.
  • Delete Safari’s preferences file to remove malicious changes

    Some malicious programs are known to install managed preferences to set the homepage and search engine settings in Safari. If the above options didn’t help you remove the malicious redirects, we’ll need to delete Safari’s preferences. To do this, follow the below steps:

    1. Quit Safari
    2. Click the desktop to make sure you’re in the Finder, choose “Go” then click on “Go to Folder“.
      Go to Folder mac
    3. Type or copy/paste the following path into the window that opens, then click Go: ~/Library/Preferences/com.apple.Safari.plist
    4. If the file is found, delete it, then re-open Safari

Remove HopStrem browser hijacker from Google Chrome

To remove HopStrem browser hijacker from Chrome we will reset the browser settings to its default. Resetting your browser settings will reset the unwanted changes caused by installing other programs. However, your saved bookmarks and passwords will not be cleared or changed.

  1. Open Chrome’s “Settings” menu.

    Click on Chrome’s main menu button, represented by three horizontal lines. When the drop-down menu appears, select the option labeled “Settings“.
    Click on the Chrome menu button then on the Settings button MacOS

  2. At the bottom, click “Advanced”.

    Chrome’s “Settings” should now be displayed in a new tab or window, depending on your configuration. Next, scroll to the bottom of the page and click on the “Advanced” link (as seen in the below example).
    Click on the Advanced button MacOS

  3. Under the section “Reset,” click “Reset”.

    Chrome’s advanced settings should now be displayed. Scroll down until the “Reset and clean up” section is visible, as shown in the example below. Next, click on the “Reset settings to their original defaults” button.
    Scroll down and click on the Reset button MacOS

  4. Confirm by clicking “Reset”.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue on with the reset process. To complete the restoration process, click on the “Reset Settings” button.
    Click on Reset Settings to restore Google Chrome to its default settings MacOS

If the above steps didn’t help you remove the HopStrem browser hijacker from Chrome, you can follow the below steps:

  • Remove the unwanted policies created by malware from Chrome

    In many cases, changes to Chrome may not be fixed with a simple browser reset. In such a case, a malicious program may have created unwanted policies on your browser. You can check if any unwanted policies are loaded into the browser by typing chrome://policy into the URL bar.
    To reset these policies, follow these steps:

    1. Open a new Terminal window. To do this, go to Finder > Go > Utilities > Terminal
    2. Enter the following commands, pressing enter after each line:
      • defaults write com.google.Chrome HomepageIsNewTabPage -bool false
      • defaults write com.google.Chrome NewTabPageLocation -string “https://www.google.com/”
      • defaults write com.google.Chrome HomepageLocation -string “https://www.google.com/”
      • defaults delete com.google.Chrome DefaultSearchProviderSearchURL
      • defaults delete com.google.Chrome DefaultSearchProviderNewTabURL
      • defaults delete com.google.Chrome DefaultSearchProviderName
      • defaults delete com.google.Chrome ExtensionInstallSources
    3. After running these commands, quit Chrome if you haven’t already done so, then launch it again and check chrome://policy to see if the same keys are still present (you may need to click the “Reload policies” button for changes to show up). If they’re gone, you should be able to change your search engine and home page back to your preferred defaults in Chrome’s settings.
  • Remove the “Managed by your organization” policy from Chrome

    Some malicious programs are known to install managed preferences to set the home page and search engine settings in Chrome. To check for these, do the following:

    1. Quit Chrome
    2. Click the desktop to make sure you’re in the Finder, choose “Go” then click on “Go to Folder“.
      Go to Folder mac
    3. Type or copy/paste the following path into the window that opens, then click Go: /Library/Managed Preferences/
    4. Paste the below path into the window that opens, then click Go:
      Look for the following files, where [username] is your username:

      • com.google.Chrome.plist
      • [username]/com.google.Chrome.plist
      • [username]/complete.plist

      These may be legitimate, so open these files with TextEdit and see if they have links to the troublesome site in them. If they do, delete them and restart Chrome.

  • Uninstall Google Chrome from your computer

    If the above options didn’t help you remove the malicious redirects, it is easier to completely remove Chrome and all data, then reinstall the browser. To do this, click the Finder icon, from the menu bar. Choose Go, and click Go to Folder, then paste one of the below paths into the window that opens.
    You will need to delete all of the below items, but before doing this be aware that this will delete all data for all Google apps you have installed, such as your bookmarks, so you will need to export them before doing this.

    • /Applications/Chrome.app
    • /Library/Application Support/Google/
    • /Library/Google/
    • ~/Library/Application Support/Google/
    • ~/Library/Google/
    • ~/Library/Preferences/com.google.Chrome.plist

    Note: The “~” indicates that it’s the current user’s Library which is often invisible in recent versions of macOS. To get to it you must hold down the Option (sometimes labeled Alt) key down and select Library from the Finder’s Go menu.

    After deleting all of the above files, restart your device. You can now download and re-install Google Chrome on your device. You will need to import any exported bookmarks or other data and may need to reinstall any other Google apps that you use.

Remove HopStrem browser hijacker from Firefox

To remove HopStrem browser hijacker from Firefox we will reset the browser settings to its default. The reset feature fixes many issues by restoring Firefox to its factory default state while saving your essential information like bookmarks, passwords, web form auto-fill information, browsing history, and open tabs.

  1. Go to the “Help” menu.

    Click on Firefox’s main menu button, represented by three horizontal lines. When the drop-down menu appears, select the option labeled “Help“.
    Click on the Firefox Menu button then select Help MacOS

  2. Click “Troubleshooting Information”.

    From the Help menu, click on “Troubleshooting Information“.

    If you’re unable to access the “Help” menu, type about:support in your address bar to bring up the Troubleshooting information page.

    Troubleshooting Information option in Firefox MacOS

  3. Click on “Refresh Firefox”

    Click the “Refresh Firefox” button in the upper-right corner of the “Troubleshooting Information” page.
    Click on the Refresh Firefox button MacOS

  4. Confirm.

    To continue, click on the “Refresh Firefox” button in the new confirmation window that opens.
    Click again on Refresh Firefox button macos

  5. Click on “Finish”.

    Firefox will close itself and will revert to its default settings. When it’s done, a window will list the information that was imported. Click on the “Finish“.

Your old Firefox profile will be placed on your desktop in a folder named “Old Firefox Data“. If the reset didn’t fix your problem you can restore some of the information not saved by copying files to the new profile that was created. If you don’t need this folder any longer, you should delete it as it contains sensitive information.

Your computer should now be free of the HopStrem browser hijacker. If your current antivirus allowed a malicious program on your computer, you might want to consider purchasing Malwarebytes Premium to protect against these types of threats in the future.
If you are still experiencing problems while trying to a malicious program from your computer, please ask for help in our Mac Malware Removal Help & Support forum.

Remove HopStrem from Android

To remove HopStrem from Android, follow these steps:

STEP 1: Uninstall the malicious apps from your Android phone

In this first step, we will check if any malicious apps are installed on your phone. Sometimes browser hijackers or adware apps can have usable Uninstall entries that can be used to remove these apps.

  1. Open the “Settings” menu.

    Tap on the “Settings” app from your phone menu or home screen.
    Settings app in Android

  2. Tap on “Apps”.

    When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
    Tap on Apps

  3. Find the malicious app.

    The “Apps” screen will be displayed with a list of all the applications that are installed on your phone. Scroll through the list until you find the unknown or malicious app. Look out for any suspicious app that could be behind all the drama – anything you don’t remember downloading or that doesn’t sound like a genuine program.
    Most often, cyber criminals hide malware inside the video or photo editing apps, weather apps, and camera apps.

    Here are some known malicious apps: ES File Explorer, Xender, Amber Weather Widget, GO Weather Forecast & Widgets, Kitty Play, Touchpal, Z Camera. If you cannot find the malicious app, we advise you to uninstall all the recently installed applications.

    Search trough the Apps list for the malicious app

  4. Uninstall the malicious app

    When you find a suspicious or malicious app, tap on it to uninstall it. This won’t start the app but will open up the app details screen. If the app is currently running press the “Force stop” button, then tap on “Uninstall”.
    Uninstall malicious app from Android

    A confirmation dialog should be displayed to confirm you want to uninstall the app, tap on “OK” to remove the malicious app from your phone.

    Confirm uninstall app from Android phone


STEP 2: Use Malwarebytes for Android to remove HopStrem adware

In this next step, we will install Malwarebytes for Android to scan and remove malicious apps from your phone.

Malwarebytes for Android Free is an on-demand scanner that searches all files and apps quickly and effectively for malware or potentially unwanted programs such as screen lockers or adware, freeing your phone from bloatware.

  1. Download Malwarebytes for Android.

    You can download Malwarebytes for Android by clicking the link below.

    MALWAREBYTES FOR ANDROID DOWNLOAD LINK
    (The above link open a Google Play Store from where you can download Malwarebytes for Android)
  2. Install Malwarebytes for Android on your phone.

    In the Google Play Store, tap “Install” to install Malwarebytes for Android on your device.

    Tap Install to install Malwarebytes for Android

    When the installation process has finished, tap “Open” to begin using Malwarebytes for Android. You can also open Malwarebytes by tapping on its icon in your phone menu or home screen.
    Malwarebytes for Android - Open App

  3. Follow the on-screen prompts to complete the setup process

    When the Malwarebytes will open, you will see the Malwarebytes Setup Wizard which will guide you through a series of permissions and other setup options.
    This is the first of two screens which explain the difference between the Premium and Free version. Swipe this screen to continue.
    Malwarebytes Setup Screen 1
    Tap on “Got it” to proceed to the next step.
    Malwarebytes Setup Screen 2
    Malwarebytes for Android will now ask for a set of permissions that are required to scan your device and protect it from malware. Tap on “Give permission” to continue.
    Malwarebytes Setup Screen 3
    Tap on “Allow” to give permission to Malwarebytes to access the files on your phone.
    Malwarebytes Setup Screen 4

  4. Update database and run a scan with Malwarebytes for Android

    You will now be prompted to update the Malwarebytes for Android database and run a full system scan.

    Malwarebytes fix issue

    Click on “Update database” to update the Malwarebytes for Android definitions to the latest version, then click on “Run full scan” to perform a system scan.

    Update database and run Malwarebytes scan on phone

  5. Wait for the Malwarebytes scan to complete.

    Malwarebytes will now start scanning your phone for adware and other malicious apps. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
    Malwarebytes scanning Android for HopStrem malware

  6. Click on “Remove Selected”.

    When the scan has completed, you will be presented with a screen showing the malware infections that Malwarebytes for Android has detected. To remove the malicious apps that Malwarebytes has found, tap on the “Remove Selected” button.
    Remove HopStrem fron Android with Malwarebytes

  7. Restart your phone.

    Malwarebytes for Android will now remove all the malicious apps that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your device.


STEP 3: Reset your browser settings to remove HopStrem browser hijacker

In this final step, if your phone is still redirected to the HopStrem ads, we will need to reset the web browser settings to their original defaults. This step should be performed only if the issues have not been solved by the previous steps.

Resetting the browser settings to their default it’s an easy task on Windows or Mac computers; however, when it comes to Android, this can’t be done directly because it’s not an option built-in into the browser settings. Restoring the browser settings on Android can be done by clearing the application data. This will remove all the cookies, cache, and other site settings that may have been saved. So let’s see how we can restore your browser to its factory settings.

Chrome for AndroidFirefoxOperaSamsung Internet BrowserMicrosoft Edge

Remove HopStrem adware from Chrome for Android

To reset Chrome for Android to its default settings, follow the below steps:

  1. Open the “Settings” menu.

    Tap on the “Settings” app from your phone menu or home screen.
    Settings app in Android

  2. Tap on “Apps”.

    When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
    Tap on Apps

  3. Find and tap on Chrome.

    The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Chrome app, then tap ot it to open the apps details.
    Tap on Chrome

  4. Tap “Storage”.

    When the Chrome’s app info menu is displayed, tap on “Storage“.
    Tap on Storage

  5. Tap “Manage Space”.

    Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
    Tap on Manage Storage

  6. Tap “Clear all data”.

    Tap “Clear all data” to delete all Chrome’s data including accounts, bookmarks and your settings in order to reset the default settings.
    Tap on Clear All Data

  7. Confirm by tapping “Ok”.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue on with the reset process. To complete the restoration process, tap “Ok“.
    Tap Ok to restore default settings

Remove HopStrem adware from Firefox fro Android

To reset Firefox fro Android to its default settings, follow the below steps:

  1. Open the “Settings” menu.

    Tap on the “Settings” app from your phone menu or home screen.
    Settings app in Android

  2. Tap on “Apps”.

    When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
    Tap on Apps

  3. Find and tap on Firefox.

    The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Firefox app, then tap ot it to open the apps details.
    Search trough the Apps list for the malicious app

  4. Tap “Storage”.

    When the Firefox’s app info menu is displayed, tap on “Storage“.
    Firefox - Tap on Storage

  5. Tap “Manage Space”.

    Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
    Firefox - Tap on Manage Storage

  6. Tap “Clear all data”.

    Tap “Clear all data” to delete all Firefox’s data including accounts, bookmarks and your settings in order to reset the default settings.
    Firefox - Tap on Clear All Data

  7. Confirm by tapping “Ok”.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue on with the reset process. To complete the restoration process, tap “Ok“.

Remove HopStrem from Opera browser

To reset the Opera browser to its default settings, follow the below steps:

  1. Open the “Settings” menu.

    Tap on the “Settings” app from your phone menu or home screen.
    Settings app in Android

  2. Tap on “Apps”.

    When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
    Tap on Apps

  3. Find and tap on Opera.

    The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Opera app, then tap ot it to open the apps details.
    Search trough the Apps list for the malicious app

  4. Tap “Storage”.

    When the Opera’s app info menu is displayed, tap on “Storage“.
    Opera - Tap on Storage

  5. Tap “Manage Space”.

    Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
    Opera - Tap on Manage Storage

  6. Tap “Clear all data”.

    Tap “Clear all data” to delete all Opera’s data including accounts, bookmarks and your settings in order to reset the default settings.
    Opera - Tap on Clear All Data

  7. Confirm by tapping “Ok”.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue on with the reset process. To complete the restoration process, tap “Ok“.

Remove HopStrem from Samsung Internet Browser

To reset the Samsung Internet Browser to its default settings, follow the below steps:

  1. Open the “Settings” menu.

    Tap on the “Settings” app from your phone menu or home screen.
    Settings app in Android

  2. Tap on “Apps”.

    When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
    Tap on Apps

  3. Find and tap on Samsung Internet Browser.

    The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Samsung Internet Browser app, then tap ot it to open the apps details.
    Search trough the Apps list for the malicious app

  4. Tap “Storage”.

    When the Samsung Internet Browser’s app info menu is displayed, tap on “Storage“.
    Samsung Internet Browser - Tap on Storage

  5. Tap “Manage Space”.

    Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
    Samsung Internet Browser - Tap on Manage Storage

  6. Tap “Clear all data”.

    Tap “Clear all data” to delete all Samsung Internet Browser’s data including accounts, bookmarks, and your settings in order to reset the default settings.
    Samsung Internet Browser - Tap on Clear All Data

  7. Confirm by tapping “Ok”.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue on with the reset process. To complete the restoration process, tap “Ok“.

Remove HopStrem from Microsoft Edge for Android

To reset the Microsoft Edge for Android to its default settings, follow the below steps:

  1. Open the “Settings” menu.

    Tap on the “Settings” app from your phone menu or home screen.
    Settings app in Android

  2. Tap on “Apps”.

    When the “Settings” menu opens, tap on “Apps” (or “App Manager”) to see all the installed applications on your phone.
    Tap on Apps

  3. Find and tap on Microsoft Edge.

    The “Apps” screen will be displayed with a list of all the apps installed on your phone. Scroll through the list until you find the Microsoft Edge app, then tap ot it to open the apps details.
    Search trough the Apps list for the malicious app

  4. Tap “Storage”.

    When the Microsoft Edge’s app info menu is displayed, tap on “Storage“.
    Microsoft Edge - Tap on Storage

  5. Tap “Manage Space”.

    Under the storage settings, you will get two options — Manage Space and Clear Cache. Tap on “Manage Space“.
    Microsoft Edge - Tap on Manage Storage

  6. Tap “Clear all data”.

    Tap “Clear all data” to delete all Microsoft Edge’s data including accounts, bookmarks, and your settings in order to reset the default settings.
    Microsoft Edge - Tap on Clear All Data

  7. Confirm by tapping “Ok”.

    A confirmation dialog should now be displayed, detailing the components that will be restored to their default state should you continue on with the reset process. To complete the restoration process, tap “Ok“.

Your phone should now be free of the HopStrem adware. If your current antivirus allowed a malicious app on your phone, you may want to consider purchasing the full-featured version of Malwarebytes to protect against these types of threats in the future.
If you are still having problems with your phone after completing these instructions, then please follow one of the steps:

If we have managed to help you, please share this guide to help others.

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