Remove AdditionalChannelSearch (Mac)

Improving online search and browsing experience of users is the supposed objective of AdditionalChannelSearch. Hence, it usually does not perform this task and unfortunately, Mac users are complaining that it is the root for frozen browser, which normally end up crashing the internet software especially Safari. AdditionalChannelSearch app is an adware for Mac system that is presently promoted as an enhancement tool for internet applications.

Because nearly all occurrences of AdditionalChannelSearch is without user’s approval, computer security professionals categorized the program as potentially unwanted application (PUA). It is also dubbed as Adware or Ad-supported Software because of its intention to exhibit overflowing of pop-up ads, redirects, and push notifications. Similar to older editions as SearchModule, HermesLookup, and CapitalCharacterSearch, the program AdditionalChannelSearch.app is also equipped with a browser monitoring code that records sensitive data from the browser including search keywords, favorite websites, geographical location, and personal details.

Apart from troubles originating from AdditionalChannelSearch, Mac users are suspicious about this tool because it often gets inside the computer in a very discreet manner. Typically, adware like this is bundled to various suspicious freeware or shareware that Mac users may obtain from a number of dubious online locations. Makers of AdditionalChannelSearch are also employing an underground advertisement campaign to point users to these providers via intrusive ads and redirects. As shown in the image below, this Mac adware may enter the computer via fake Adobe Flash update hosted by suspicious servers.

AdditionalChannelSearch

To conclude, AdditionalChannelSearch is listed as one of the so many suspicious browser extension that can do more harm than good if it was installed on internet application. Therefore, the consensus of security experts is to perform a complete virus and malware scan in order to effectively get rid of AdditionalChannelSearch along with relevant malicious items. Full guide to clean Mac computer coupled with free malware and virus removal tool is the content of the next section. Be sure to execute the steps in exact order to completely remove AdditionalChannelSearch adware from Mac and compromised browser application.

Procedures to Remove AdditionalChannelSearch 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 AdditionalChannelSearch. 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 AdditionalChannelSearch.

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 AdditionalChannelSearch 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 AdditionalChannelSearch or any unwanted program.

Delete Unwnated App

4. Drag AdditionalChannelSearch 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 AdditionalChannelSearch

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 AdditionalChannelSearch, 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 AdditionalChannelSearch

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.AdditionalChannelSearch
  • 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:

- AdLoad

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

- AdLoad

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 AdditionalChannelSearch 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 AdditionalChannelSearch.

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, AdditionalChannelSearch 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 AdditionalChannelSearch 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 AdditionalChannelSearch 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 AdditionalChannelSearch. 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 AdditionalChannelSearch 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 AdditionalChannelSearch. 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 AdditionalChannelSearch 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 AdditionalChannelSearch.

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