ExtendedTool browser extension that operates under Mac OS environment has disputed status because it causes a number of unusual actions once installed on internet software like Safari, Google Chrome, or Mozilla Firefox. In addition, ExtendedTool app commonly set foot on Mac computer through the use of different tricky techniques perpetuated by adware makers.
In usual scenario, ExtendedTool enters the computer uninvited. It is typically embedded to a range of freeware or shareware that are under the guise of media player, tools, file converter, games, and similar free application that are hosted on unreliable sources. Please note that some installer files from the web are malicious bundles. It is just right to be skeptical sometimes especially when downloading free apps as some of them may cause harm on the computer by installing potentially unwanted application (PUA). For example, there are freeware out there that was designed to install ExtendedTool or associated adware like AssistiveRecord and OperativeDesktop.
Once ExtendedTool becomes part of internet browser application, it can command the pages to visit undesirable websites and this redirect can lead to online frauds. It may also pop-up ads that contains deceptive offers or link up the browser to other harmful sites that can be the basis of malware infection. Obviously, ExtendedTool carry out this kind of browser manipulation for the sole purpose of generating online profit. To improve the ads and attract web users into visiting relevant sponsored contents, ExtendedTool app could embed additional code to track web user’s data including the following:
- Search inquiry or keywords
- Homepage settings including search tool
- Favorite websites and most visited online pages
- Web user’s personal information including username and password
- IP address or geographical location
Because the entire group of adware were designed primarily to do more harm than provide benefit, we recommend the immediate removal of such threat from internet browser program and computer system as well. To completely remove ExtendedTool app, please execute the guide below and do not forget to run a full scan using the recommended anti-virus and anti-malware tools.
Procedures to Remove ExtendedTool 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 System 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 ExtendedTool. 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.
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 ExtendedTool.
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 ExtendedTool 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 ExtendedTool or any unwanted program.
4. Drag ExtendedTool 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 ExtendedTool
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 ExtendedTool, 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 ExtendedTool
1. Select and copy the string below to your Clipboard by pressing Command + C on your keyboard.
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.
4. You will now see a folder named LaunchAgents. Take note of the following files inside the folder:
The term unknown is just a representation of the actual malware name. Attackers may masks the actual name with following:
- CoverOpen, OnlyApplication
If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing ExtendedTool 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.
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.
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 ~):
10. Lastly, go to your Finder and open the Applications Folder. Look for subfolders with the following names and drag them to Trash.
- CoverOpen, OnlyApplication
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.
3. Click on Force Quit button.
4. You may now delete or remove locked files that belongs to ExtendedTool 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 ExtendedTool.
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.
5. After the scan, Malwarebytes Anti-malware for Mac will display a list of identified threats, ExtendedTool 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 ExtendedTool from Homepage and Search
- 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 ExtendedTool from the Homepage field. Replace it with your preferred URL to be set as your default homepage.
- 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 ExtendedTool. 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.
- 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 ExtendedTool 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 ExtendedTool. 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 ExtendedTool or any relevant profile from the left pane. See image below.
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 ExtendedTool.
Post Last Modified On July 29, 2020