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

What is MultiSet

MultiSet is an adware application that targets Mac platform. Adware is type of malware that can cause problems for your MAC. MultiSet can generate numerous additional pop up, banner, pop-under and in-text link ads flooding on your web-browser; collect your confidential information such as login details, online searches, etc; run in the background and drag down your computer running speed; give more chances for other adware software, PUPs even malicious software to get on your MAC computer.

Another reason why you need to delete the MultiSet adware is its online data-tracking activity. It can collect marketing-type data about you that can be later sold to third party companies. You do not know if your home address, account names and passwords are safe.

The instructions below explaining steps to remove MultiSet. Feel free to use it for removal of the adware that can attack Safari, Firefox and Google Chrome and other popular internet browsers. The step-by-step instructions will help you uninstall the MultiSet adware and get rid of intrusive ads from your internet browsers.

How does MultiSet get on your computer

The most common way to get adware is a freeware installer. In many cases, a user have a chance to disable all additional modules, but certain installers are created to confuse the average users, in order to trick them into installing potentially unwanted applications and adware software. Anyway, easier to prevent adware software rather than clean up your Apple Mac after one. So, keep your browser updated (turn on automatic updates), run good antivirus software, double check free applications before you start it (do a google search, scan a downloaded file with VirusTotal), avoid dubious and unknown webpages.

Threat Summary

Name	MultiSet
Type	adware, PUP (potentially unwanted program), Mac virus, Mac malware
Detection Names	ApplicUnwnt, OSX.Trojan.Gen, Adware.MAC.Generic, Program:MacOS/Vigram.A, Osx.Adware.Cimpli, Adware/Adload!OSX, MacOS.Agent-MT and Trojan-Downloader.OSX.Adload
Distribution	Freeware installers, dubious pop-up ads, torrent downloads and fake software updaters
Symptoms	Every time you perform an Internet search, your browser is redirected to another web page, undesired advertising links appear on websites that you are visiting, your Apple Mac starts automatically installing unexpected programs, unwanted icons in your internet browser, your web-browser home page has modified and you cannot modify it back, speed test good but internet slow.
Removal	MultiSet removal guide

How to remove MultiSet from Mac computer

To remove the adware from your machine, you must uninstall all suspicious applications and delete every file that could be related to the adware. Besides, to fix your internet browser newtab, search provider by default and homepage, you should reset the hijacked web browsers. As soon as you’re complete with MultiSet removal procedure, we suggest you scan your MAC OS with malware removal tools listed below. It will complete the removal procedure on your MAC OS.

To remove MultiSet, use the following steps:

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

Remove unwanted profiles on Mac device

MultiSet 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 MultiSet.

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 Mac device, which is normal.

Delete MultiSet related applications through the Finder

In order to get rid of MultiSet you need to do is to delete unknown and questionable programs from your MAC using the Finder. When uninstalling potentially unwanted programs, browser hijackers and adware, check the list of installed programs and try to find questionable programs and remove them all. Pay special attention to recently installed software, as it is most likely that MultiSet сame along with it.

Open Finder and click “Applications”.

Very carefully look around the entire list of programs installed on your computer. Most probably, one of them is the MultiSet adware. Once you have found a suspicious, unwanted or unused program, right click to it and choose “Move to Trash”. Another solution is drag the program from the Applications folder to the Trash.

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

Remove MultiSet related files and folders

Now you need to try to find MultiSet 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.

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

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

Some files created by MultiSet 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 MultiSet 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: com.google.defaultsearch.plist, , installapp.plist, com.MultiSet.service.plist, com.net-preferences.plist, com.machelper.plist, search.plist and macsearch.plist. Most often, potentially unwanted programs, adware software and browser hijackers create several files with similar names.

Check for MultiSet 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.MultiSet.system, then this folder must be deleted. Move all suspicious folders and files to the Trash.

Check for MultiSet 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 MultiSet 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.installapp.system.plist, com.MultiSet.system.plist, com.machelper.system.plist, com.macsearch.system.plist and com.search.system.plist. In most cases, adware, potentially unwanted programs and browser hijackers create several files with similar names.

Scan your Mac with MalwareBytes

We recommend using MalwareBytes Free. You may download and install MalwareBytes to find and get rid of MultiSet related apps from your Mac. When installed and updated, the malware remover automatically scans for and removes all security threats exist on the Apple Mac.

MalwareBytes AntiMalware (MBAM) can be downloaded from the following link.

When the downloading process is complete, close all apps and windows on your computer. Run the saved file. Follow the prompts.

The MalwareBytes will automatically start and you can see its main screen as displayed in the following example.

Now press the “Scan” button to perform a system scan with this utility for the MultiSet adware software. This procedure can take quite a while, so please be patient. During the scan MalwareBytes Anti Malware (MBAM) will find threats present on your MAC.

When MalwareBytes Free is complete scanning your MAC OS, MalwareBytes will produce a list of unwanted programs and adware. Next, you need to press the “Quarantine” button. The MalwareBytes Anti Malware will begin to get rid of MultiSet adware software.

Remove MultiSet from Safari, Chrome, Firefox

Annoying MultiSet adware or other symptoms of adware in your web browser is a good reason to locate and delete malicious extensions. This is an easy way to recover browsers settings and not lose any important information.

Google Chrome	Mozilla Firefox
In the top right hand corner, click on ‘three vertical dots’, and this will open up the main menu on Google Chrome. Select ‘More tools’, then ‘Extensions’. Click ‘Remove’ to uninstall an extension. Click ‘Remove’ in the dialog box. You can also try to remove MultiSet adware software by reset 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 problems with MultiSet adware removal, you need to reset Mozilla 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

It’s also critical to protect your browsers from harmful web-pages and advertisements by using an ad-blocker program like AdGuard. Security experts says that it’ll greatly reduce the risk of malicious software, and potentially save lots of money. Additionally, the AdGuard can also protect your privacy by blocking almost all trackers.

1. AdGuard can be downloaded from the following link.
   
   

   AdGuard for Mac download
   3687 downloads
   Author: © Adguard
   Category: Security tools
   Update: January 17, 2018
   
2. Once the download is complete, launch the downloaded file. You will see the “Setup Wizard” program window. Follow the prompts.
3. Once the setup is done, press “Skip” to close the installation program and use the default settings, or click “Get Started” to see an quick tutorial that will help you get to know AdGuard better.
4. In most cases, the default settings are enough and you do not need to change anything. Each time, when you run your MAC system, AdGuard will start automatically and stop intrusive advertisements, block harmful and misleading webpages.

To sum up

Once you have removed the adware software using this guide, Mozilla Firefox, Chrome and Safari will no longer display the MultiSet ads. Unfortunately, if the steps does not help you, then you have caught a new adware, and then the best way – ask for help here.