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How to remove TabApp and MacPerformance from Mac computers

Also Known As: Ads by TabApp
Type: Mac Virus
Damage level: Medium

What is TabApp?

TabApp is the name of an adware-type app, which belongs to the Pirrit adware family. Software of this type is usually designed to serve advertisements, however, it is sometimes used to collect information relating to users. TabApp installs another adware-type app from the Pirrit family called MacPerformance.

It also displays pop-ups that supposedly update software, however, it is most likely used to trick people into installing more unwanted software.

TabApp adware

Like most adware-type applications, TabApp displays advertisements. Typically, these ads are intrusive and conceal underlying content of visited websites. If clicked, they redirect people to dubious, potentially malicious websites or cause download/installation of unwanted apps.

Some examples of ads that adware deploys are coupons, surveys, banners, pop-ups, etc. TabApp displays deceptive pop-ups that offer updates to installed software, however, these pop-ups are usually designed to trick people into downloading and installing unwanted software.

Furthermore, installed adware might be designed to record details such as users' IP addresses, geolocations, entered search queries, addresses of visited web pages, and other, possibly personal details. In any case, developers of this software often share the details with third parties who misuse them to generate revenue.

Collected data might also be shared with cyber criminals. The MacPerformance app, which is installed with Tab App, asks for permission to access and control the browser (for example, Google Chrome). If allowed, the app is able to access documents and data in the browser and to perform actions within the controlled app.

Threat Summary:
Name Ads by TabApp
Threat Type Mac malware, Mac virus.
Detection Names (TabApp.app.zip) Avast (MacOS:Pirrit-AT [Adw]), BitDefender (Adware.MAC.Generic.14275), ESET-NOD32 (A Variant Of OSX/Adware.Pirrit.AN), Kaspersky (Not-a-virus:HEUR:AdWare.OSX.Pirrit.s), Full List Of Detections (VirusTotal)
Symptoms Your Mac becomes slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites.
Distribution methods Deceptive pop-up ads, free software installers (bundling), fake flash player installers, torrent file downloads.
Damage Internet browser tracking (potential privacy issues), display of unwanted ads, redirects to dubious websites, loss of private information.
Malware Removal (Mac)

To eliminate possible malware infections, scan your Mac with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
▼ Download Combo Cleaner for Mac
To use full-featured product, you have to purchase a license for Combo Cleaner. Limited seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

There are many adware-type apps on the internet that help developers to generate revenue by displaying ads and collecting data.

Examples of other adware infections include LocalDefault, FormalSearch, and ResultsValue. Apps of this type can cause problems with browsing safety, privacy, and they can lead to unwanted downloads, installations, and so on. We advise you to remove TabApp, MacPerformance and any other adware from your computer and browser immediately.

How did TabApp install on my computer?

Typically, people download and install unwanted apps unintentionally when they fail to notice their inclusion in the set-ups of other software.

This adware and PUA distribution method is called "bundling". Typically, information about the additional apps can be found in the "Custom" or "Advanced" settings of the download/installation set-ups, however, some people fail to check and change these settings, thereby causing unwanted downloads and installations.

By leaving the settings unchanged, they often give permission for various PUAs to be downloaded and/or installed with other software by default. In other cases, people end up having PUAs installed when they click deceptive advertisements that run scripts - these download and install unwanted apps.

How to avoid installation of potentially unwanted applications

Do not download or install software from dubious web pages, using third party downloaders, installers, through Peer-to-Peer networks such as torrent clients, eMule, and so on. Software should be downloaded from official websites only. Do not to leave settings (such as "Custom", "Advanced") that are available in download or installation set-ups unchanged.

Check them carefully and dismiss any offers to download or install unwanted software before completing the download or installation procedure. Do not trust or click intrusive ads, especially if they are displayed on dubious websites - they might lead to unwanted downloads/installations or other problems.

If the browser causes unwanted redirects or displays ads, it is likely that there is adware or another PUA installed on it. In these cases, uninstall all suspicious, unknown plug-ins, extensions, and add-ons from the browser, and programs from the operating system immediately.

If your computer is already infected with TabApp, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

TabApp process running in Activity Monitor:

TabApp process in Activity Monitor

TabApp enables a pop-up window that offers to update software with tools (they are fake):

WizApp offers fake updates

MacPerformance asking for permission to control and access Chrome:

MacPerformance wants to access Chrome and to control it

Text in this pop-up:

"MacPerformance" wants access to control "Google Chrome". Allowing control will provide access to documents and data in "Google Chrome", and to perform actions within that app.

Instant automatic Mac malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced IT 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 seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Quick menu:

Video showing how to remove TabApp adware using Combo Cleaner:

TabApp adware removal:

Remove TabApp-related 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 adware-related files and folders

Mac Go To Folder step

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

Mac removing related files and folders - step 1Check for adware generated files in the /Library/LaunchAgents/ folder:

Mac go to /Library/LaunchAgents - step 1

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

Mac go to /Library/LaunchAgents - 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 exact same string.

Mac removing related files and folders - step 2Check for adware generated files in the ~/Library/Application Support/ folder:

Mac go to /Library/Application Support - step 1

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

Mac go to /Library/Application Support - 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.

Mac removing related files and folders - step 3Check for adware generated files in the ~/Library/LaunchAgents/ folder:

Mac go to ~/Library/LaunchAgents - step 1

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

Mac go to ~/Library/LaunchAgents - 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 exact same string.

Mac removing related files and folders - step 4Check for adware generated files in the /Library/LaunchDaemons/ folder:

Mac go to /Library/LaunchDaemons - step 1

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

Mac go to /Library/LaunchDaemons - 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.

Mac removing malware related files and folders - step 5Scan your Mac with Combo Cleaner:

If you have followed all the steps correctly, your Mac should be clean of infections. To ensure 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 the 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 its virus definition database and click the "Start Combo Scan" button.

Mac remove malware with Combo Cleaner - step 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.

Mac remove malware with Combo Cleaner - step 2

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

Remove malicious extensions from Internet browsers

Safari iconRemove malicious Safari extensions:

Removal of malicious extensions in Safari - step 1

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

Removal of malicious extensions in Safari - step 2

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 regular browser operation.

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

Google Chrome logoRemove malicious extensions from Google Chrome:

Removal of malicious extensions in Google Chrome - step 1

Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome), select "More Tools" and click "Extensions". Locate all recently-installed suspicious extensions, select these entries and click "Remove".

Removal of malicious extensions in Google Chrome - step 2

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

Mozilla Firefox logoRemove malicious extensions from Mozilla Firefox:

Removal of malicious extensions in Mozilla Firefox - step 1

Click the Firefox menu firefox menu icon (at the top right corner of the main window) and select "Add-ons and themes". Click "Extensions", in the opened window locate all recently-installed suspicious extensions, click on the three dots and then click "Remove".

Removal of malicious extensions in Mozilla Firefox - step 2

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

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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.

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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.

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Platform: macOS

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To use full-featured product, you have to purchase a license for Combo Cleaner. Limited seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.