FacebookTwitterLinkedIn

How to remove ExtendedWindow from your browser and computer

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

What is ExtendedWindow?

ExtendedWindow is classified as adware and a browser hijacker - it displays advertisements and promotes z6airr.com and adjustablesample.com (addresses of fake search engines) by changing browser settings. It can also read sensitive information from websites.

Generally, users download and install adware and browser hijackers inadvertently and, therefore, apps of this type are categorized as potentially unwanted applications (PUAs).

ExtendedWindow adware

Apps such as ExtendedWindow feed users with advertisements including pop-up ads, coupons, banners, surveys, etc. Commonly, users who click them arrive at dubious websites. In some cases, they can cause download/installation of unwanted apps by executing certain scripts.

ExtendedWindow promotes z6airr.com (on Safari browsers) and adjustablesample.com (on Chrome browsers) by changing certain browser settings. Both of these addresses redirect to search.yahoo.com. I.e., these are the addresses of fake search engines designed to display results generated by Yahoo.

Usually browser hijackers promote fake search engines by changing settings such as the address of the default search engine, homepage, and new tab. Users can only remove addresses of fake search engines from browser settings when the hijacking app (in this case, ExtendedWindow) is removed from the browser and/or computer.

ExtendedWindow can also collect sensitive information (such as passwords, credit card details, telephone numbers) from websites. Collected information might be misused to steal accounts and identities, make fraudulent transactions and purchases, and for other malicious purposes.

Users with ExtendedWindow app installed on browsers and/or computers may suffer financial loss, become victims of identity theft, experience problems relating to web browsing safety/online privacy, lose access to various personal accounts, etc. You are strongly advised not to download or install applications such as ExtendedWindow.

Threat Summary:
Name Ads by ExtendedWindow
Threat Type Adware, Mac malware, Mac virus.
Detection Names Avast (MacOS:AdAgent-L [Adw]), AVG (MacOS:AdAgent-L [Adw]), ESET-NOD32 (A Variant Of OSX/Adware.Synataeb.C), Kaspersky (Not-a-virus:HEUR:AdWare.OSX.Adload.i), Full List (VirusTotal).
Additional Information This application belongs to the Adload malware family.
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.

Commonly, adware-type apps and browser hijackers are useless to regular users and designed only to generate revenue for the developers, even if they are advertised as useful and legitimate applications. Uninstall all PUAs from browsers/computers immediately.

More examples of PUAs similar to ExtendedWindow are PracticalProcesser, ExpandedProgram and RunningOptimizer.

How did ExtendedWindow install on my computer?

Users often download and install potentially unwanted applications with other programs. I.e., when PUAs are included into download/installation set-ups as 'additional offers'. These offers can be declined in "Custom", "Advanced" and other similar settings of the set-ups.

This distribution of unwanted apps is called "bundling". It works when users download and install their software without checking and changing the settings. PUAs are also downloaded and installed through deceptive ads that execute certain scripts when clicked.

How to avoid installation of potentially unwanted applications

Unwanted downloads and installations can be avoided by declining offers to download or install unwanted apps before completing the process. Typically, you can decline these offers in "Custom", "Advanced" or other settings of the set-ups.

Third party downloaders, installers, unofficial pages, Peer-to-Peer networks such as torrent clients, eMule, and other channels of this kind are often used to distribute unwanted, malicious programs. Therefore, programs and files should be downloaded only from official websites and through direct links.

Do not  click ads displayed on dubious pages, since they can cause installation of unwanted software. Generally, such ads appear on untrusted web pages. Remove any suspicious, unwanted extensions, plug-ins and add-ons already installed on the browser.

Also remove programs of this kind that are installed on the operating system. If your computer is already infected with ExtendedWindow, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

Z6airr.com redirects to search.yahoo.com (GIF):

z6airr.com redirects to yahoo

Pop-up window displayed once ExtendedWindow installation is complete:

pop-up displayed once ExtendedWindow installation is done

ExtendedWindow adware installed on Safari

extendedwindow adware installed on safari

ExtendedWindow installation folder:

extendedwindow adware installation folder

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 ExtendedWindow adware using Combo Cleaner:

ExtendedWindow adware removal:

Remove ExtendedWindow-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.

▼ Show Discussion

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.

Our malware removal guides are free. However, if you want to support us you can send us a donation.

About PCrisk

PCrisk is a cyber security portal, informing Internet users about the latest digital threats. Our content is provided by security experts and professional malware researchers. Read more about us.

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 ExtendedWindow QR code
Scan this QR code to have an easy access removal guide of Ads by ExtendedWindow on your mobile device.
We Recommend:

Get rid of Mac malware infections today:

▼ REMOVE IT NOW
Download Combo Cleaner for Mac

Platform: macOS

Editors' Rating for Combo Cleaner:
Editors ratingOutstanding!

[Back to Top]

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.