Remove ExtraWindow adware from your operating system

Also Known As: Ads by ExtraWindow
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to remove ExtraWindow from Mac computers

What is ExtraWindow?

ExtraWindow is an adware-type application that apparently enhances the browsing experience. It is allegedly capable of providing fast searches, accurate search results, etc. ExtraWindow operates by displaying various intrusive advertisements. This app is also classified as a potentially unwanted application (PUA), since most users install it unintentionally. I.e. they are tricked to install. Note that adware often has data tracking abilities.

ExtraWindow adware

Adware-type applications display a wide variety of intrusive ads such as pop-ups, banners, surveys, coupons, and dozens of others. These can seriously affect browsing quality by limiting browsing performance and site visibility (overlaying web page content). While this may seem to be simply an annoyance, intrusive advertisements are a threat. When clicked, they can generate redirects to various sale-oriented, untrustworthy and even malicious websites. They can also execute scripts designed to download/install unwanted or malicious content without users' consent. Some PUAs can track data. By monitoring browsing activity (URLs visited, pages viewed, search queries typed, etc.), they can collect personal information (IP addresses, geolocations, and personal details). Note that this data is then passed on to third parties (possibly, cyber criminals) intent on misusing it for financial gain. In summary, adware present on users' devices can cause browser and systems infiltration/infections and lead to severe privacy issues (even resulting in identity theft). To ensure device and user safety, remove all suspicious applications and browser extensions/plug-ins.

Threat Summary:
Name Ads by ExtraWindow
Threat Type Mac malware, Mac virus.
Detection Names BitDefender (Adware.MAC.Hula.D), Emsisoft (Adware.MAC.Hula.D (B)), Full List (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 three days free trial available.

PUAs are released by the thousand, including adware. Most unwanted applications share common traits, and those released by identical developers tend also to be identical. WindowMixGenerelOpen, and FormalSearch are a few examples of adware-type apps similar to ExtraWindow. Unwanted software/content often seems legitimate and further tempts users to install by offering a broad array of "useful" and "beneficial" features. In fact, the only purpose of these malicious products is to generate revenue for their creators. The features they boast are rarely operational. Rather than working as advertised, PUAs run intrusive advertisement campaigns, generate redirects to dubious web pages, and gather private data.

How did ExtraWindow install on my computer?

PUAs are most commonly spread via the download/install set-ups of other software. The deceptive marketing method of packing regular programs with unwanted or malicious content is called "bundling". Unfortunately, this technique is often successful. PUAs and other malicious software infiltrates systems due to users rushing download/installation processes (e.g. ignoring terms, skipping steps and sections, using pre-set options, and so on). Some unwanted applications have "official" websites, on which they are typically endorsed as "free" and "useful". When clicked, intrusive ads (usually hosted by compromised web pages) can be triggered to execute scripts and designed to make rogue downloads/installs of PUAs. In summary, lack of attention when downloading/installing and careless browsing habits are the main reasons for system infiltration.

How to avoid installation of potentially unwanted applications

Your content (software, updates, tools, features, etc.) should be researched to verify its legitimacy before downloading/installing. Only official and verified channels should be used for downloading. Using Peer-to-Peer sharing networks, unofficial or free file-hosting websites, third party downloaders and similar sources is not advised, as they are more likely to offer unwanted/malicious software or bundled programs. Treat download/installation processes with caution. Read the terms, explore options using "Custom/Advanced" settings, and opt-out of downloading/installing supplementary apps, tools, etc. Intrusive advertisements may seem normal and harmless, however they can redirect to dubious sites (e.g. pornography, adult-dating, gambling, and similar). If you experience ads/redirects of this type, check the system and remove all suspect applications and/or browser extensions/plug-ins immediately. If your computer is already infected with ExtraWindow, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

Pop-up window displayed once ExtraWindow installation is complete:

pop-up that is designed to install ExtraWindow on Safari browser

ExtraWindow installation folder:

ExtraWindow install folder

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 ExtraWindow adware using Combo Cleaner:

ExtraWindow adware removal:

Remove ExtraWindow-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 ads by extrawindow 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.

Ads by ExtraWindow removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove ads by extrawindow 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 ads by extrawindow 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 ads by extrawindow 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
Ads by ExtraWindow 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 Ads by ExtraWindow on your mobile device.
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Platform: macOS

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