Remove Leading Search Service from Mac

Leading Search Service is an application that is presently promoted by several ads and freeware download portals. It is one of the methods that developers use to market their malicious programs and reach global online users. In reality, Leading Search Service is a potentially unwanted program (PUP), that functions to hijack web browsers like Google Chrome or Safari. Once installed, it will modify the homepage, new tab page, and search engine to reflect an unwanted URL.

How does Leading Search Service infect the computer?

Leading Search Service got into Mac computers possibly after the installation of freeware apps. Some programs are bundled with PUP or adware, but the installer does not reveal it in the process. In that way, unwanted apps like Leading Search Service can proliferate on computers unknowingly. Mac users may later find out that a malicious program is running on the operating system when some indications occur.

While browsing, the constant display of ads is a sign that there is something suspicious happening on the operating system. Leading Search Service trigger advertisements in various forms, such as campaign banners, commercial ads, promotional surveys, discount coupons, and pop-ups. Such appearances could advertise false updates, fake products, services, or software downloads. Similarly, there are ads that can perpetrate the installation of adware or similar PUPs, such as CommonValue and AccessBrowser.

More about Leading Search Service

Leading Search Service also spur browser redirects, which can link web visitors to dubious websites. Such sites could be inappropriate for internet users because they contain unpleasant and unexpected contents. The new modified browser only provides limited search results. Unfortunately, it may present web visitors with questionable sources with undesirable subjects. Redirects generated by Leading Search Service can connect with different websites; however, it is far from what the online users were expecting.

Unauthorized intrusion of the Leading Search Service into computers alone can prove that it is not a genuine application. The main goal of this suspicious tool is to hijack web browsers and modify them to assist their operations. After successful infiltration, it will spy throughout the operating system and directly locate web browsers to collect browsing activities and other private details. These capabilities of Leading Search Service really explain why it is a threat to the safety of the device as well as the privacy and security of web users.

Screenshot of Leading Search Service

“LeadingSearchService” will damage your computer

This warning on your Mac indicates that the file is considered a potential threat by Apple’s security features, particularly Gatekeeper. It may be unsigned, unverified, or from an unidentified source, triggering caution to prevent the execution of potentially malicious software, especially the LeadingSearchService app. This message also serves as a preventive measure against outdated or quarantined software that could pose security risks. To ensure system safety, it is recommended to verify the source of LeadingSearchService, check for software updates, and scan for malware before attempting to open the flagged file.

Procedures to Remove Leading Search Service 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 : - 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 malicious browser hijacker like Leading Search Service.

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 Leading Search Service.

Screenshot of Combo Cleaner Dashboard

To fully optimize the features of antivirus and privacy scanners, users may have to upgrade to the premium version.

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

Step 2 : Delete Leading Search Service 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 Leading Search Service or any unwanted program.

Screenshot of Deleting App

4. Drag Leading Search Service to Trash Bin to delete the application from Mac.

5. Next, go to the Dock, right-click on the Trash icon, and click on Empty Trash.

Step 3 : Remove Browser Extensions that belongs to Leading Search Service

Most adware and unwanted programs use an application called a "browser extension" to be able to take over the settings of internet applications. Therefore, we highly recommend checking and removing the extension that is closely related to Leading Search Service. If it is not present, look for and delete any suspicious browser extension.

Google Chrome

Remove the Leading Search Service Extension from Google Chrome

1. Open the Google Chrome browser.

2. Input the strings below in the address bar and press Enter on the keyboard:

chrome://extensions/

Screenshot of Chrome Extensions in PC

3. Find Leading Search Service or a relevant entry and remove it from Google Chrome.

Safari

Remove Malicious Extension from Safari

1. Open the Safari browser.

2. On the top menu, click Safari > Settings or Preferences.

3. The Safari settings window will open. Please select the Extensions tab.

Screenshot of Safari Extension Removal

4. Locate the suspicious extension and click the Uninstall button to remove it from Safari.

5. You may now close the window and restart Safari.

Microsoft Edge

Remove Leading Search Service from Microsoft Edge Browser

1. Open the Microsoft Edge program.

2. Input or copy and paste the following string in the address bar. Press press Enter on the keyboard:

edge://extensions/

Screenshot of Edge Extension on Mac

3. Look for and Remove or Disable entries for Leading Search Service from the Installed Extensions area.

Screenshot of Edge Extension Removal - Mac

4. You may now close the window and restart the Microsoft Edge browser.

Mozilla Firefox

Uninstall the Leading Search Service Extension from Mozilla Firefox

1. Open the Mozilla Firefox browser.

2. Type or copy and paste the strings below in the address bar and press Enter on the keyboard:

about:addons

Screenshot of Firefox Extension

3. Click on Extensions from the sidebar menu.

4. Look for an entry that pertains to Leading Search Service and Disable or Remove it from the browser using the options button.

Step 4 : Delete Malicious Files that have installed Leading Search Service

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

2. Input the following string and press Enter on the keyboard.

~/Library/LaunchAgents

Screenshot of Go To Folder

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

  • com.Leading Search Service.plist
  • unknown.service.plist
  • unknown.system.plist
  • unknown.download.plist
  • unknown.update.plist

4. The term unknown is just a representation of the actual malware name. Attackers may use the following file names:

- LeadingSearchService, (random characters).plist

If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing Leading Search Service to be present on your Mac. Arranging all items to see the latest ones may also help you identify recently installed unfamiliar files.

5. Please click on "Show items as..."

Screenshot of LaunhAgents Folder

6. To arrange the items in chronological order, click Date Modified.

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

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

8. Please restart the Mac computer.

9. Open another folder using the same method as above. Copy and paste the following string to easily locate the folder:

~/Library/Application Support

Screenshot of Go to Folder

10. Select any suspicious items that you have noted previously. Drag them to the Trash.

11. Repeat the process in the following non-hidden folders (without ~):

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

12. Lastly, go to your Finder > Go and open the Applications folder. Look for subfolders with the following names and drag them to Trash.

- LeadingSearchService

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

1. Go to Launchpad > Other folder, open the Activity Monitor.

2. Select the process you want to quit.

3. In the upper part of the window, click the Stop button.

Screenshot of Force Quit

4. Click on Force Quit button.

5. You may now delete or remove the locked file that belongs to Leading Search Service homepage hijacker.

Step 5 : Double-check with Malwarebytes for Mac

1. Download Malwarebytes for Mac from the link below.

2. Locate the downloaded Malwarebytes-Mac.pkg and install it with the default settings.

3. Run Malwarebytes for Mac. It will check for updates and download the most recent version if one is available. This is necessary for finding recent malware threats, including Leading Search Service.

4. Once you are on the Malwarebytes dashboard, please click on the Scan button to start scanning your Mac computer.

Screenshot of Malwarebytes Dashboard

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

Step 6 : Fixing the Homepage and Search Engine

Google Chrome

Remove Leading Search Service from the Homepage and Search of Chrome

1. Open the Google Chrome browser and type the following on the address bar and press Enter on the keyboard:

chrome://settings

Screenshot of Chrome Settings

2. Go to the left sidebar and click On Startup.

3. Select "Open a specific page or set of pages" in the right panel.

Screenshot of Chrome Startup

4. Locate the unwanted Homepage URL, click on More Actions (3-dot icon), and select Edit.

5. Enter the desired web address as your home page, replacing Leading Search Service. Click Save.

6. To set the default search engine, go to the sidebar, and this time, select Search Engine.

Screenshot of Default Search

7. Click on the Manage search engines and site search button in the right panel.

8. Find the unwanted Search Engine in the list. Click on More Actions, and then click Delete.

9. Go back to the left side bar and click Search Engine.

Screenshot of Search Engine Address Bar

10. In the right panel, choose a valid entry from the "Search engine used in the address bar."

You can now restart the Google Chrome browser to see if the unwanted homepage and search engine related to Leading Search Service are gone.

Safari

Get Rid of Leading Search Service from Safari's Homepage and Search

1. Open your Safari browser.

2. Go to the Safari Menu located in the upper left-hand corner, and then select Settings or Preferences.

3. In the General tab, remove the Leading Search Service item or unwanted URL from the Homepage section. Replace it with your preferred URL to be set as your default homepage.

Screenshot of Safari Home Settings

4. Next, be sure that the "New windows open with" and "New tabs open with" fields are set to "Homepage".

5. Please click on the Search tab, and in the "Search engine" section, select Google or any valid search engine.

Screenshot of Safari Search Settings

6. You may now restart the Safari browser.

Microsoft Edge

Remove Leading Search Service from the Homepage of Edge Browser

1. Open the Microsoft Edge browser on your Mac computer.

2. In the address bar, type or copy and paste the string below, then press Enter on the keyboard:

edge://settings/startHomeNTP

Screenshot of Edge Homepage Settings on Mac

3. Go to the "When Edge Starts" area. Under the "Open these pages" section, click More Actions (3-dot).

4. Select Edit to open the Edit Page window.

5. Input your desired address to replace the homepage settings of Leading Search Service.

Screenshot of Edge for Mac Default Homepage

6. Click the Save button. You may now restart Microsoft Edge for Mac.

Mozilla Firefox

Delete Leading Search Service from the Homepage and Search of Firefox.

1. Open the Mozilla Firefox browser on your Mac computer.

2. Type the following on the address bar, then press Enter on the keyboard:

about:preferences

3. Click Home in the sidebar area.

Screenshot of Firefox Homepage Settings

4. Under "Homepage and new windows", you may choose Firefox Home (Default) or Custom URLs.

5. If you chose Custom URLs, input the desired URL to replace Leading Search Service settings.

6. To configure the default search engine, select Search in the sidebar to display the settings.

Screenshot of Firefox Search Settings

7. Under the Default Search Engine list, please select a legitimate one (i.e., Google).

8. Scroll down to "Search Shortcuts" and select an unwanted search engine.

Screenshot of Deleting Search

9. Click on the Remove button to delete the unwanted search engine. You may now restart the Mozilla Firefox for Mac.

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