How to Remove ExtendedMode (Mac)

This article is about the suspicious browser extension called ExtendedMode. Included on this page are Easy Fix solution, Manual Removal Guide, and cleaning the Homepage and Search section of compromised internet program.

Occurrence of ExtendedMode app on Mac computer can be the basis for various troubles especially on internet browser applications. Keep in mind that ExtendedMode is labeled as potentially unwanted application (PUA). On top of that, Mac security professionals are also certain on categorizing the threat as Adware or ad-supported software. With these tagging, ExtendedMode is officially a threat to Mac computer and internet programs too. It is aligned to other adware as ConsoleProgram, EssentialElement, SkilledObject, and many more.

How ExtendedMode enters Mac computer?

Mac users may obtain ExtendedMode from various freeware and shareware. Most of it is in disguise as free tools, media players, games, or Adobe software update. This software bundling hoax can easily carry out the installation of ExtendedMode app and obviously, the setup process is hidden behind the installation of the carrier, which is freeware.

Even though Mac is secure and demands permission prior to software installation, ExtendedMode easily evade this security feature by its bundling scheme. It acts as sub-installer and during setup procedure; it actually adopts the same administrative privilege allowed to the host executable file. Thanks to hundreds of freeware for Mac, ExtendedMode developer manages to spread the malicious code and process a sneaky installation on internet browser programs.

Effects of ExtendedMode infection

When fully loaded onto the computer, ExtendedMode runs own processes that it able to control internet browser program. It can monitor browsing activities of Mac users and logs sensitive data like favorite websites, search keywords, geographical location, and personal information like username and passwords. However, what it can record is not just limited to this information.

There are times that ExtendedMode uses the maximum resources on Mac computer and it even clashes with other applications. This fault may cause issues to affected browser program that causes it to freeze and eventually end up in software crashes. Aside from errors and issues, browser application may notify Mac users that ExtendedMode is requesting access to crucial data to perform various actions.

Screenshot of ExtendedMode for Mac

In order to stop the errors and eliminate troubles on internet browser programs, it is recommended to remove ExtendedMode app. Scanning the computer with valid anti-virus and anti-malware tools is highly recommended. This will help remove all malicious objects that are associated to ExtendedMode adware.

Procedures to Remove ExtendedMode from Mac

This area contains comprehensive procedures to help you remove adware and potentially unwanted program from the computer.

Guide on this page are written in a manner that can be easily understand and execute by Mac users.

Quick Fix - Scan the Mac Computer with Combo Cleaner

Combo Cleaner is a trusted Mac utility application with complete antivirus and optimization features. It is useful in dealing with adware, malware, and PUP's. Moreover, it can get rid of adware like ExtendedMode. You may need to purchase full version if you require to maximize its premium features.

1. Download the tool from the following page:

2. Double-click the downloaded file and proceed with the installation.

3. In the opened window, drag and drop the Combo Cleaner icon onto your Applications folder icon.

Install Combo Cleaner

4. Open your Launchpad and click on the Combo Cleaner icon.

5. Wait until antivirus downloads its latest virus definition updates and click on "Start Combo Scan" to start removing ExtendedMode.

Combo Cleaner Scanner

6. Free features of Combo Cleaner include Disk Cleaner, Big Files finder, Duplicate files finder, and Uninstaller. To use antivirus and privacy scanner, users have to upgrade to a premium version.

Proceed with the rest of the removal steps if you are comfortable in manually removing malicious objects associated with the threat.

Step 1 : Delete ExtendedMode from Mac Applications

1. Go to Finder.

2. On the menu, click Go and then, select Applications from the list to open Applications Folder.

3. Find ExtendedMode or any unwanted program.

Delete Unwanted App

4. Drag ExtendedMode to Trash Bin to delete the application from Mac.

5. Right-click on Trash icon and click on Empty Trash.

Step 2 : Remove Browser Extensions that belongs to ExtendedMode

1. Locate the add-on or extension that is relevant to the adware. To do this, please follow the following depending on affected browser.

Safari - Choose Preferences from the Safari menu, then click the Extensions icon. This will open a window showing all installed extensions.

Chrome - Select Preferences from the Chrome menu, and then click the Extensions link found on the left pane.

Firefox - Choose Add-ons from the Menu. Look at both the Extensions and Plug-ins lists when it opens a new window.

2. Once you have located ExtendedMode, click on Remove or Uninstall, to get rid of it.

3. Close the browser and proceed to the next steps.

Step 3 : Delete Malicious Files that have installed ExtendedMode

1. Select and copy the string below to your Clipboard by pressing Command + C on your keyboard.

~/Library/LaunchAgents

2. Go to your Finder. From the menu bar please select Go > Go to Folder...

3. Press Command + V on your keyboard to paste the copied string. Press Return to go to the said folder.

Command + V

4. You will now see a folder named LaunchAgents. Take note of the following files inside the folder:

  • com.ExtendedMode
  • unknown.download.plist
  • unknown.ltvbit.plist
  • unknown.update.plist

The term unknown is just a representation of the actual malware name. Attackers may masks the actual name with following:

- Extended Mode Daemon

If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing ExtendedMode to be present on your Mac. Arranging all items to see the most latest ones may also help you identify recently installed unfamiliar files. Please press Option + Command + 4 on your keyboard to arrange the application list in chronological order.

Option+Command+4

Important: Take note of all the suspicious files as you may also delete the same item on another folder as we go on.

5. Drag all suspicious files that you may find to Trash.

6. Please restart the computer.

7. Open another folder using the same method as above. Copy and Paste the following string to easily locate the folder.

~/Library/Application Support

8. Look for any suspicious items that are similar to the ones in Step 4. Drag them to the Trash.

9. Repeat the process on the following non-hidden folders (without ~):

/Library/LaunchAgents
/Library/LaunchDaemons
/Library/Application Support

10. Lastly, go to your Finder and open the Applications Folder. Look for subfolders with the following names and drag them to Trash.

- Extended Mode Daemon

Optional : For locked files that cannot be removed, do the following:

1. Go to Launchpad, Utilities folder, open Activity Monitor.

2. Select the process you want to quit.

Force Quit Apps

3. Click on Force Quit button.

4. You may now delete or remove locked files that belongs to ExtendedMode adware.

Step 4 : Double-check with MBAM Tool for Mac

1. Download Malwarebytes Anti-malware for Mac from this link:

2. Run Malwarebytes Anti-malware for Mac. It will check for updates and download if most recent version is available. This is necessary in finding recent malware threats including ExtendedMode.

3. If it prompts to close all running web browser, please do so. Thus, we advise you to PRINT this guide for your reference before going offline.

4. Once it opens the user interface, please click on Scan button to start scanning your Mac computer.

MBAM for Mac

5. After the scan, Malwarebytes Anti-malware for Mac will display a list of identified threats, ExtendedMode is surely part of it. Be sure to select all items in the list. Then, click Remove button to clean the computer.

Step 5 : Remove ExtendedMode from Homepage and Search

Safari

- Open your Safari browser.
- Go to Safari Menu located on upper left hand corner, and then select Preferences.
- Under General tab, navigate to Default Search Engine section and select Google or any valid search engine.
- Next, be sure that "New Windows Open With" field is set to Homepage.
- Lastly, remove ExtendedMode from the Homepage field. Replace it with your preferred URL to be set as your default homepage.

Google Chrome

- Open Chrome browser.
- Type the following on the address bar and press Enter on keyboard : chrome://settings/
- Look for 'On Startup' area.
- Select 'Open a specific page or set of pages'.
- Click on More Actions and select Edit.
- Enter the desired web address as your home page, replacing ExtendedMode. Click Save.
- To set default search engine, go to Search Engine area.
- Click on 'Manage search engines...' button.
- Go to questionable Search Engine. Click on More Actions and Click 'Remove from list'.
- Go back to Search Engine area and choose valid entry from Search engine used in the address bar.

Mozilla Firefox

- Run Mozilla Firefox browser.
- Type the following on the address bar and hit Enter on keyboard : about:preferences
- On Startup area, select 'Show your home page' under 'When Firefox starts' field.
- Under Home Page field, type the desired URL to replace ExtendedMode settings.
- To configure default search engine, select Search on left sidebar to display settings.
- Under Default Search Engine list, please select one.
- On the same page, you have an option to Remove unwanted search engine.

Optional : If unable to change browser settings, execute these steps:

Some user complains that there is no way to change browser settings because it is grayed out by ExtendedMode. In such situation, it is important to check if there is unwanted profile. Please do the following:

1. Quit any running applications and launch System Preferences from your Dock.

2. Under System Preferences, click Profiles.

3. Select ExtendedMode or any relevant profile from the left pane. See image below.

Remove Profile

4. At the bottom of this window, click minus [-] button to delete the account. Please refer to image above.

5. Close the Profiles window and open the affected browser to change all settings associated with ExtendedMode.

About the author

Leave a Comment

Your email address will not be published. Required fields are marked *

Copy link