How to remove GroupSource (Mac)

By CK Quinito | Posted on April 11, 2020 | Updated on June 27, 2020

GroupSource app is one example of adware application that exhibits pop-ups and advertisements on the browser. GroupSource generated ads are usually in different types such as coupons, in-text ads, pop-up ads, redirects, or campaign banners.

Developers are endorsing GroupSource as an application that improves the online search and browsing experience of Mac users. Though it seems like GroupSource is a useful application, it will inject intrusive ads and pop-ups on the browser whether the Mac user likes them or not. Ads from GroupSource are typically shown in places they should not be. Most of the time, ads and pop-ups are overlaying the contents of the web page that usually promote links of adult-related sites, online web games, fake software updates, or unwanted programs.

When Mac user installed GroupSource on internet browser application, it will have negative effects on the browser’s performance. Ads from GroupSource can redirect the Mac user into untrustworthy websites containing inappropriate content. Aside from that, GroupSource can also cause web pages to load slowly. Besides, there are cases that after installing GroupSource.app on the Mac computer, the browser’s home page changes beyond the knowledge of Mac user. In addition, the presence of GroupSource can possibly give way for other malicious software to enter the Mac computer.

GroupSource

Mac user often installs GroupSource unknowingly. It can possibly happen because adware applications like this can enter the computer even without permission from Mac user. Oftentimes, GroupSource is offered through advertisements or bundled with other software. GroupSource is mostly bundled with freeware, which the Mac user can download free of charge. Unfortunately, free downloads do not properly disclose that other applications are included in the installation process. Later on, the Mac user might found out that GroupSource or any unwanted software is already installed on the Mac computer.

Procedures to Remove GroupSource 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.

Step 1 : 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 GroupSource. You may need to purchase full version if you require to maximize its premium features.

1. Download the tool from the following page:

Download Combo Cleaner Tool

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 it's latest virus definition updates and click on "Start Combo Scan" to start removing GroupSource.

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 2 : Delete GroupSource 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 GroupSource or any unwanted program.

Delete Unwnated App

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

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

Step 3 : Remove Browser Extensions that belongs to GroupSource

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 Plugins lists when it opens a new window.

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

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

Step 4 : Delete Malicious Files that have installed GroupSource

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.GroupSource
  • 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:

- ProcessSave, SystemJump

If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing GroupSource 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.

- ProcessSave, SystemJump

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 Locked Files

3. Click on Force Quit button.

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

Step 5 : Double-check with MBAM Tool for Mac

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

Click here to download MBAM for Mac

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 GroupSource.

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 - Scan

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

Step 6 : Remove GroupSource 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 GroupSource 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 GroupSource. 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 GroupSource 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 GroupSource. 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 GroupSource 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 GroupSource.

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