How to remove PracticalSystem (Mac OS)

PracticalSystem for Mac may have gotten inside the computer without any consent from user. Due to this incursion traits of this browser extension, Mac security professionals categorized it as potentially unwanted application (PUA). Without computer user’s awareness, they have facilitated the entry of PracticalSystem app on the computer. It is usually bundled to freeware, shareware, and third party apps that Mac user may have obtained from unreliable provider.

One approach that people behind PracticalSystem are using to easily enter the computer is via software bundling hoax. Usually, these cyber crooks are repacking popular freeware to embed PracticalSystem in the installation sequence. That is the main reason why PracticalSystem app pushes through with its own on-boarding while Mac user is running the setup process of the main freeware.

The invasion could have been prevented if Mac user takes the additional and more comprehensive measure in installing the downloaded app. If run in the Advanced (Custom) mode, Mac OS would have shown the list of inclusions like PracticalSystem app or other adware in this package. That way, Mac user has easily taken out the malicious browser extension and prevents it from installing on the internet browser program. Unfortunately, the traditional installation sequence often prevails because it is the easiest way that is favored by the majority. Therefore, in most instances, PracticalSystem quickly enters the computer and reckless Mac users are partly to blame for the infection.

PracticalSystem App

On the occasion that PracticalSystem is part of the browser program, many disturbances greet web user. One is the countless ads that never stop appearing on the screen. In addition, series of redirects intends to force a visit to different unusual sites that are often having harmful contents. Some sample of these hazardous sites are Lokpresearch.club and Tiktok-news.com. With that, there is no reason to let PracticalSystem app sit on the browser even for a while. Immediate removal is recommended and that is the topic on the next section.

Procedures to Remove PracticalSystem 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 PracticalSystem. 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 PracticalSystem.

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 PracticalSystem 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 PracticalSystem or any unwanted program.

Delete Unwanted App

4. Drag PracticalSystem 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 PracticalSystem

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 PracticalSystem, 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 PracticalSystem

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.PracticalSystem
  • 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:

- DigitalEnviroment, TypicalOperation

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

- DigitalEnviroment, TypicalOperation

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 PracticalSystem 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 PracticalSystem.

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, PracticalSystem 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 PracticalSystem 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 PracticalSystem 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 PracticalSystem. 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 PracticalSystem 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 PracticalSystem. 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 PracticalSystem 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 PracticalSystem.

Mac Protection Against PracticalSystem Attack

The best way to protect Mac computer still lies on how effective the installed security program is. With the so many available anti-virus and anti-malware tools, choose the one that provides real-time protection that guards the online transmission like internet and emails.

Mac user should also refrain from visiting sites that are involved in software and media piracy. These are the common and top most sources of adware, malware, and computer viruses.

Post Last Modified On October 1, 2020

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