When the browser starts to show intrusive advertisements and pop-ups, adware might be installed on the Mac computer. There are adware applications, which spread on the Mac computers to inject annoying ads and pop-ups for income generation purposes. One adware that infects Mac computer is called MultiUpgrade. Developers markets MultiUpgrade by means of several ways. However, the most common and effective technique is through software bundling, in which certain software integrates unwanted application like MultiUpgrade. Adware developers intentionally includes unwanted app on some freeware for discrete installation without notifying Mac user. Therefore, the possibility of MultiUpgrade to infiltrate Mac computers is relatively high.
When MultiUpgrade is successfully installed on the Mac computer, it will start to operate by delivering intrusive advertisements on the browser. Mac users will see a continuous display of unwanted ads and pop-ups while browsing the internet. Adware applications like MultiUpgrade will usually present ads that might lead Mac users to malicious websites. Moreover, Mac users should never click on such ads because some adverts can run scripts that automatically download and install potentially unwanted applications (PUA). Additional malware intrusions on the Mac computer might cause more serious infections. For these reasons, Mac user should never install unwanted program like MultiUpgrade and similar harmful extensions as InteractiveSpeed, GeneralLaunch, or ProcessSign. Such kinds of applications should be removed immediately from Mac computers.
In order to avoid the download and installation of MultiUpgrade or any other malware, Mac users should not obtain applications from unsafe websites. Legitimate downloading sites do not offer malicious software for installation. Therefore, the chance of encountering unwanted software like MultiUpgrade is very unlikely. Another thing is, Mac users should be attentive while installing any downloaded application. It is very important to inspect every process to detect any suspicious operation or infiltration. In this way, Mac user can prevent the infection that unwanted applications like MultiUpgrade can bring to Mac computer. In addition, the most important is to protect Mac computer by regularly scanning it with reputable anti-malware and anti-virus software.
Procedures to Remove MultiUpgrade 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 : 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 MultiUpgrade. 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 it's latest virus definition updates and click on "Start Combo Scan" to start removing MultiUpgrade.
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 2 : Delete MultiUpgrade 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 MultiUpgrade or any unwanted program.
4. Drag MultiUpgrade to Trash Bin to delete the application from Mac.
5. Right-click on Trash icon and click on Empty Trash.
Step 3 : Remove Browser Extensions that belongs to MultiUpgrade
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 Plugins lists when it opens a new window.
2. Once you have located MultiUpgrade, click on Remove or Uninstall, to get rid of it.
3. Close the browser and proceed to the next steps.
Step 4 : Delete Malicious Files that have installed MultiUpgrade
1. Select and copy the string below to your Clipboard by pressing Command + C on your keyboard.
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.
4. You will now see a folder named LaunchAgents. Take note of the following files inside the folder:
The term unknown is just a representation of the actual malware name. Attackers may masks the actual name with following:
- CoverOpen, LocalDefault
If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing MultiUpgrade 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.
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.
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 ~):
10. Lastly, go to your Finder and open the Applications Folder. Look for subfolders with the following names and drag them to Trash.
- CoverOpen, LocalDefault
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.
3. Click on Force Quit button.
4. You may now delete or remove locked files that belongs to MultiUpgrade adware.
Step 5 : 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 MultiUpgrade.
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.
5. After the scan, Malwarebytes Anti-malware for Mac will display a list of identified threats, MultiUpgrade is surely part of it. Be sure to select all items in the list. Then, click Remove button to clean the computer.
Step 6 : Remove MultiUpgrade from Homepage and Search
- 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 MultiUpgrade from the Homepage field. Replace it with your preferred URL to be set as your default homepage.
- 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 MultiUpgrade. 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.
- 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 MultiUpgrade 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 MultiUpgrade. 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 MultiUpgrade or any relevant profile from the left pane. See image below.
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 MultiUpgrade.