How to uninstall LogicCheck app/extension from Mac (Virus removal guide)

What is LogicCheck

According to security experts, LogicCheck is an adware application that targets Mac platform. Adware is a form of malicious software developed in order to provide third-party ads to the user without asking permission. Adware takes control of web browsers and redirects them to online ads and scam sites every time users surf the World Wide Web. Adware can end up on computers in various ways. In most cases is when users install free software and forget to uncheck the box for the optional apps installation.

Does adware steal your privacy data? The LogicCheck adware has the ability to gather and transmit personal data without your knowledge. It is able to track information about web sites visited, internet browser and system information, and your Apple Mac IP address.

How does LogicCheck get on your MAC system

Adware software usually is bundled with another application in the same setup file. The risk of this is especially high for the various free apps downloaded from the Internet. The makers of such applications are hoping that users will run the quick installation mode, that is simply to click the Next button, without paying attention to the information on the screen and don’t carefully considering every step of the installation procedure. Thus, adware can infiltrate your Mac without your knowledge. Therefore, it is very important to read everything that the program says during installation, including the ‘Terms of Use’ and ‘Software license’. Use only the Manual, Custom or Advanced setup method. This mode will allow you to disable all optional and unwanted apps and components.

Threat Summary

Name	LogicCheck, “LogicCheck 1.0”
Type	adware, PUP (potentially unwanted program), Mac malware, Mac virus
Detection Names	OSX.Trojan.Gen, MacOS.Agent-MT, Osx.Adware.Cimpli, Adware/Adload!OSX, ApplicUnwnt, Program:MacOS/Vigram.A, Adware.MAC.Generic and Trojan-Downloader.OSX.Adload
Distribution	Free software installers, suspicious pop up ads, torrent downloads and fake updaters
Symptoms	You keep getting redirected to suspicious websites, unwanted advertising links appear on web sites that you are visiting, your computer starts automatically installing unwanted software, new addons suddenly added on your browser, your web browser home page has modified and you cannot change it back, slow browsing Internet.
Removal	LogicCheck removal guide

How to remove LogicCheck adware

If you have consistent pop-ups or undesired advertisements, slow machine, freezing MAC problems, you are in need of adware removal assistance. The steps below will guide you forward to get LogicCheck adware removed and will assist you get your Mac operating at peak capacity again.

To remove LogicCheck, perform the following steps:

1. Remove unwanted profiles on Mac device
2. Delete LogicCheck associated software by using the Finder
3. Remove LogicCheck related files and folders
4. Scan your Mac with MalwareBytes
5. Remove LogicCheck from Safari, Chrome, Firefox
6. How to stay safe online

Remove unwanted profiles on Mac device

LogicCheck can make changes to the Mac system such as malicious changes to browser settings, and the addition of malicious system profiles. You need to check the system preferences, find and remove malicious profiles and ensure your settings are as you expect.

Click the System Preferences icon ( ) in the Dock, or choose Apple menu ( ) > System Preferences.

In System Preferences, click Profiles, then select a profile related to LogicCheck.

Click the minus button ( – ) located at the bottom-left of the Profiles screen to remove the profile.
Note: if you do not see Profiles in the System Preferences, that means there are no profiles installed on your Apple computer, which is normal.

Delete LogicCheck associated software by using the Finder

The next step in removing adware, PUPs and browser hijackers by yourself is to go into the Finder, then Applications. Take a look at the list of programs on your Mac computer and see if there are any dubious and unknown applications. If you see any, you need to remove it. Of course, before doing so, you can do an Internet search to find details on the application. If it is a adware, PUP and browser hijacker, you will likely find information that says so.

Open Finder and click “Applications”.

Very carefully look around the entire list of apps installed on your MAC OS. Most probably, one of them is the LogicCheck adware. Once you’ve found a questionable, unwanted or unused program, right click to it and choose “Move to Trash”. Another way is drag the program from the Applications folder to the Trash.

Don’t forget, choose Finder -> “Empty Trash”.

Remove LogicCheck related files and folders

Now you need to try to find LogicCheck related files and folders, and then delete them manually. You need to look for these files in certain directories. To quickly open them, we recommend using the “Go to Folder…” command.

LogicCheck creates several files, these files must be found and removed. Below is a list of files associated with this unwanted program.

• /Library/LaunchDaemons/com.LogicCheck.system.plist
• ~/Library/LaunchAgents/com.LogicCheck.service.plist
• /Library/Application Support/.(RANDOM)/System/com.LogicCheck.system
• ~/Library/Application Support/.(RANDOM)/Services/com.LogicCheck.service.app

Some files created by LogicCheck are hidden from the user. To find and delete them, you need to enable “show hidden files”. To do this, use the shortcut CMD + SHIFT + . Press once to show hidden files and again to hide them. There is another way. Click Finder -> Applications -> Utilities -> Terminal. In Terminal, paste the following text: defaults write com.apple.finder AppleShowAllFiles YES

Press Enter. Hold the ‘Option/alt’ key, then right click on the Finder icon in the dock and click Relaunch.

Click on the Finder icon. From the menu bar, select Go and click “Go to Folder…”. As a result, a small window opens that allows you to quickly open a specific directory.

Check for LogicCheck generated files in the /Library/LaunchAgents folder

In the “Go to Folder…” window, type the following text and press Go:
/Library/LaunchAgents

This will open the contents of the “/Library/LaunchAgents” folder. Look carefully at it and pay special attention to recently created files, as well as files that have a suspicious name. Move all suspicious files to the Trash. A few examples of files: installapp.plist, com.machelper.plist, com.net-preferences.plist, com.LogicCheck.service.plist, search.plist, macsearch.plist and com.google.defaultsearch.plist, . Most often, PUPs, adware and browser hijackers create several files with similar names.

Check for LogicCheck generated files in the /Library/Application Support folder

In the “Go to Folder…” window, type the following text and press Go:
/Library/Application Support

This will open the contents of the “Application Support” folder. Look carefully at its contents, pay special attention to recently added/changed folders and files. Check the contents of suspicious folders, if there is a file with a name similar to com.LogicCheck.system, then this folder must be deleted. Move all suspicious folders and files to the Trash.

Check for LogicCheck generated files in the “~/Library/LaunchAgents” folder

In the “Go to Folder…” window, type the following text and press Go:
~/Library/LaunchAgents

Proceed in the same way as with the “/Library/LaunchAgents” and “/Library/Application Support” folders. Look for suspicious and recently added files. Move all suspicious files to the Trash.

Check for LogicCheck generated files in the /Library/LaunchDaemons folder

In the “Go to Folder…” window, type the following text and press Go:
/Library/LaunchDaemons

Carefully browse the entire list of files and pay special attention to recently created files, as well as files that have a suspicious name. Move all suspicious files to the Trash. A few examples of files to be deleted: com.macsearch.system.plist, com.search.system.plist, com.machelper.system.plist, com.installapp.system.plist and com.LogicCheck.system.plist. In most cases, browser hijackers, adware software and potentially unwanted programs create several files with similar names.

Scan your Mac with MalwareBytes

We suggest using MalwareBytes Anti-Malware. You may download and install MalwareBytes AntiMalware to detect and get rid of LogicCheck related applications from your Mac device. When installed and updated, the malicious software remover automatically detects and removes all security threats present on the MAC system.

Download MalwareBytes Anti-Malware by clicking on the link below.

When downloading is finished, close all software and windows on your machine. Open a directory in which you saved it. Run the saved file and follow the prompts.

Once setup is complete, you will see window as shown on the image below.

Now press the “Scan” button to perform a system scan with this tool for the LogicCheck adware. A system scan can take anywhere from 5 to 30 minutes, depending on your MAC OS. When a threat is found, the number of the security threats will change accordingly. Wait until the the checking is finished.

After MalwareBytes has finished scanning your MAC, you will be shown the list of all found threats on your MAC. Review the report and then press “Quarantine” button.

The Malwarebytes will now delete LogicCheck adware and move the selected items to the Quarantine.

Remove LogicCheck from Safari, Chrome, Firefox

If you have ‘LogicCheck ‘ removal problem, then remove unwanted extensions can help you. In the steps below we will show you the solution to get rid of malicious plugins without reinstall. This will also help to get rid of LogicCheck from your web-browser.

Google Chrome	Mozilla Firefox
In the top right hand corner, click on ‘three vertical dots’, and this will open up the main menu on Chrome. Select ‘More tools’, then ‘Extensions’. Click ‘Remove’ to uninstall an extension. Click ‘Remove’ in the dialog box. You can also try to delete LogicCheck adware by reset Google Chrome settings.	Click on ‘menu’ button and select ‘Add-ons’. Go to ‘Extensions’ tab. To uninstall an add-on, click on ‘Remove’ button next to it. If you are still experiencing issues with LogicCheck adware software removal, you need to reset Firefox browser.
Safari
On the top menu select ‘Safari’, then ‘Preferences’. Select ‘Extensions’ tab. Select an extension you want to delete and click ‘Uninstall’ button next to it.

How to stay safe online

If you want to delete intrusive ads, web-browser redirects and pop ups, then install an ad-blocker application like AdGuard. It can block unwanted ads and pop ups, stop web pages from tracking your online activities when using the Firefox, Google Chrome and Safari. So, if you like browse the Internet, but you don’t like annoying ads and want to protect your MAC OS from harmful websites, then the AdGuard is your best choice.

Download AdGuard by clicking on the link below.

When the download is complete, start the downloaded file. You will see the “Setup Wizard” screen. Follow the prompts.

Each time, when you start your MAC, AdGuard will run automatically and stop intrusive popup advertisements, block malicious and misleading web-sites.

Finish words

Once you have removed the LogicCheck adware using the step-by-step instructions, Safari, Firefox and Chrome will no longer display any annoying advertisements when you surf the Web. Unfortunately, if the few simple steps does not help you, then you have caught a new adware, and then the best way – ask for help.

Please create a new question by using the “Ask Question” button in the Questions and Answers. Try to give us some details about your problems, so we can try to help you more accurately. Wait for one of our trained “Security Team” or Site Administrator to provide you with knowledgeable assistance tailored to your problem with the LogicCheck adware software.