How to uninstall Quick Mac Booster PUA?

Also Known As: Quick Mac Booster potentially unwanted application
Type: Mac Virus
Distribution: Moderate
Damage level: Medium

How to remove "Quick Mac Booster" from Mac?

What is "Quick Mac Booster"?

Quick Mac Booster is a piece of software, endorsed as a tool capable of improving system performance and speed. Amongst its advertised functionalities are: detection and elimination of various undesirables files (e.g. unused, duplicate, large, temporary, junk, etc.), application management and system startup time improvement. However, due to the dubious methods used to distribute this app, Quick Mac Booster is deemed to be a Potentially Unwanted Application (PUA). Software within this classification is often deceptive and untrustworthy.

Quick Mac Booster unwanted application

While questionable distribution techniques are not entirely uncommon for legitimate products, they are mostly used to proliferate unwanted content. Despite looking ordinary and useful, PUAs are seldom legitimate. For example, fake system cleaner/optimizer type PUAs often require activation (i.e. purchase) to perform their advertised abilities. However, even after activation - these unwanted applications remain nonoperational. It is not unlikely that this is the case with Quick Mac Booster as well. What is more, PUAs can have additional undesirable abilities. They can force-open untrustworthy/rogue, compromised, deceptive, scam and malicious sites. Adware-types can run intrusive advertisement campaigns. The ads they deliver diminish browsing quality, upon being clicked the advertisements redirect to unreliable/malicious websites and some can even stealthily download/install software (e.g. PUAs). Browser hijacker PUAs modify browser settings in order to promote fake search engines. Hence, with a browser hijacker installed, every new browser tab/window opened and every single search query typed into the URL bar - redirect to the promoted address. Illegitimate web searchers are typically unable to provide search results, so they redirect to Google, Yahoo, Bing and other legitimate search engines. Browser hijackers can reset any changes users try to make to their browsers and/or restrict/deny access to the browser's settings. Most PUAs (regardless of their type) can track data. They can record browsing activity (URLs visited, pages viewed, search queries typed, etc.) and gather personal information extracted from it (IP addresses, geolocations and other details). This vulnerable data is usually shared with third parties (potentially, cyber criminals), intent on misusing it for financial gain. To summarize, presence of unwanted apps on devices can lead to system infections, financial losses, severe privacy issues and even identity theft. To ensure device and user safety, all suspicious applications and browser extensions/plug-ins must be removed immediately upon detection.

Threat Summary:
Name Quick Mac Booster potentially unwanted application
Threat Type PUP (potentially unwanted program), PUA (potentially unwanted application), Mac malware, Mac virus
Detection Names Arcabit (Application.MAC.QuickMacBooster.A), BitDefender (Application.MAC.QuickMacBooster.A), Emsisoft (Application.MAC.QuickMacBooster.A (B)), FireEye (Application.MAC.QuickMacBooster.A), Full List Of Detections (VirusTotal)
Supposed Functionality System cleaning and speed boosting
Symptoms A program that you do not recall installing suddenly appeared on your computer. A new application is performing computer scans and displays warning messages about 'found issues'. Asks for payment to eliminate the supposedly found errors.
Distribution Methods Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers.
Damage Monetary loss (unnecessary purchase of fake software), unwanted warning pop-ups, slow computer performance.
Malware Removal (Mac)

To eliminate possible malware infections, scan your Mac with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

iMacCleanerEasy Mac CareMacReviver and MacRepair are some examples of PUAs similar to Quick Mac Booster. Unwanted applications tempt users into download/installation with a wide variety of "handy" and "advantageous" functionalities. The promised features can range from system cleaners/optimizers to easy access tools for online content. However, despite how good the offers may sound, the advertised functions usually do not work - even after the software is purchased. Functionality, user convenience and safety are irrelevant, since the only purpose of PUAs is to generate revenue for the developers. These apps are designed to deliver intrusive advert campaigns, cause redirects, hijack browsers and track private data.

How did potentially unwanted applications install on my computer?

Some PUAs (e.g. Quick Mac Booster) have official promotional webpages, from which they can be downloaded. These applications can also be downloaded/installed together with other products. This deceptive marketing method of packing regular software with unwanted or malicious additions - is called "bundling". Rushed download/installation processes (e.g. ignored terms, used pre-set options, etc.) - increase the risk of unintentionally allowing deceptive and/or bundled content. Intrusive ads can infiltrate these apps into systems as well. Once clicked on, they can execute scripts to download/install PUAs without user permission.

How to avoid installation of potentially unwanted applications?

All products must be researched to verify their legitimacy, prior to download/installation and/or purchase. It is recommended to only use official and trustworthy download channels. Since dubious download sources, like: unofficial and free file-hosting websites, P2P sharing networks (BitTorrent, eMule, Gnutella, etc.) and other third party downloaders - commonly offer deceptive and/or bundled content. When downloading/installing, it is important to read terms, study all available options, use the "Custom/Advanced" settings and opt-out from additional apps, tools, features, and so on. Intrusive advertisements appear ordinary and harmless, however they redirect to various questionable pages (e.g. gambling, pornography, adult-dating and others). In case of encounters with such ads/redirects, users must inspect the system and remove all suspect applications and/or browser extensions/plug-ins from it without delay. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate them.

Appearance of Quick Mac Booster application (GIF):

Appearance of Quick Mac Booster PUA (GIF)

Quick Mac Booster installation setup:

Installation setup of Quick Mac Booster PUA

Website promoting Quick Mac Booster application:

Website used to promote Quick Mac Booster PUA

Instant automatic Mac malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of Mac malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner for Mac By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

Quick menu:

Video showing how to remove adware and browser hijackers from a Mac computer:

Potentially unwanted applications removal:

Remove potentially unwanted applications from your "Applications" folder:

mac browser hijacker removal from applications folder

Click the Finder icon. In the Finder window, select "Applications". In the applications folder, look for "MPlayerX","NicePlayer", or other suspicious applications and drag them to the Trash. After removing the potentially unwanted application(s) that cause online ads, scan your Mac for any remaining unwanted components.

Remove quick mac booster potentially unwanted application related files and folders:

Finder go to folder command

Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...

step1Check for adware-generated files in the /Library/LaunchAgents folder:

removing adware from launch agents folder step 1

In the Go to Folder... bar, type: /Library/LaunchAgents

removing adware from launch agents folder step 2
In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step2Check for adware generated files in the /Library/Application Support folder:

removing adware from application support folder step 1

In the Go to Folder... bar, type: /Library/Application Support

removing adware from application support folder step 2
In the “Application Support” folder, look for any recently-added suspicious folders. For example, “MplayerX” or “NicePlayer”, and move these folders to the Trash.

step3Check for adware-generated files in the ~/Library/LaunchAgents folder:

removing adware from ~launch agents folder step 1


In the Go to Folder bar, type: ~/Library/LaunchAgents

removing adware from ~launch agents folder step 2

In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step4Check for adware-generated files in the /Library/LaunchDaemons folder:

removing adware from launch daemons folder step 1
In the Go to Folder... bar, type: /Library/LaunchDaemons

removing adware from launch daemons folder step 2
In the “LaunchDaemons” folder, look for recently-added suspicious files. For example “com.aoudad.net-preferences.plist”, “com.myppes.net-preferences.plist”, "com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, etc., and move them to the Trash.

step 5 Scan your Mac with Combo Cleaner:

If you have followed all the steps in the correct order you Mac should be clean of infections. To be sure your system is not infected run a scan with Combo Cleaner Antivirus. Download it HERE. After downloading the file double click combocleaner.dmg installer, in the opened window drag and drop Combo Cleaner icon on top of the Applications icon. Now open your launchpad and click on the Combo Cleaner icon. Wait until Combo Cleaner updates it's virus definition database and click "Start Combo Scan" button.

scan-with-combo-cleaner-1

Combo Cleaner will scan your Mac for malware infections. If the antivirus scan displays "no threats found" - this means that you can continue with the removal guide, otherwise it's recommended to remove any found infections before continuing.

scan-with-combo-cleaner-2

After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.

Quick Mac Booster potentially unwanted application removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove quick mac booster potentially unwanted application related Safari extensions:

safari browser preferences

Open Safari browser, from the menu bar, select "Safari" and click "Preferences...".

safari extensions window

In the preferences window, select "Extensions" and look for any recently-installed suspicious extensions. When located, click the "Uninstall" button next to it/them. Note that you can safely uninstall all extensions from your Safari browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.

firefox browser iconRemove malicious plug-ins from Mozilla Firefox:

Remove quick mac booster potentially unwanted application related Mozilla Firefox add-ons:

accessing mozilla firefox add-ons

Open your Mozilla Firefox browser. At the top right corner of the screen, click the "Open Menu" (three horizontal lines) button. From the opened menu, choose "Add-ons".

removing malicious add-ons from mozilla firefox

Choose the "Extensions" tab and look for any recently-installed suspicious add-ons. When located, click the "Remove" button next to it/them. Note that you can safely uninstall all extensions from your Mozilla Firefox browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.

chrome-browser-iconRemove malicious extensions from Google Chrome:

Remove quick mac booster potentially unwanted application related Google Chrome add-ons:

removing malicious google chrome extensions step 1

Open Google Chrome and click the "Chrome menu" (three horizontal lines) button located in the top-right corner of the browser window. From the drop-down menu, choose "More Tools" and select "Extensions".

removing malicious Google Chrome extensions step 2

In the "Extensions" window, look for any recently-installed suspicious add-ons. When located, click the "Trash" button next to it/them. Note that you can safely uninstall all extensions from your Google Chrome browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Removal Instructions in other languages
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Quick Mac Booster potentially unwanted application QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Quick Mac Booster potentially unwanted application on your mobile device.
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