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How to remove ExtendedLibrary adware from your operating system

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

What is ExtendedLibrary?

ExtendedLibrary is an adware-type application with browser hijacker characteristics. This app delivers intrusive advertisements and makes modifications to browsers to promote bogus search engines. Additionally, most adware-type apps and browser hijackers collect browsing-related information.

Due to the dubious methods employed to distribute ExtendedLibrary, it is also classified as a Potentially Unwanted Application (PUA).

ExtendedLibrary adware

Adware enables the placement of pop-ups, banners, surveys, full-page and other intrusive ads, typically on any visited website. The delivered ads significantly diminish the browsing experience, as they overlay web page content and limit browsing speed.

Furthermore, when intrusive advertisements are clicked, they can redirect to various untrusted/malicious pages and some can even stealthily download/install rogue software (e.g. PUAs). Browser hijackers assign the addresses of fake search engines as the homepage, default search engine and new tab/widow URLs.

Therefore, with a browser hijacker installed, each search query typed into the URL bar and new browser tab/window opened redirects to the promoted address. Rogue search engines are usually unable to generate unique results, and so they tend to redirect (or cause redirection chains leading) to Yahoo, Bing, Google and other genuine sites.

Recovering a hijacked browser is impossible without removing the software affecting it, since browser hijackers can deny access to the settings and/or undo any changes users attempt to make to their browsers. As mentioned, most PUAs have data tracking capabilities.

They can monitor browsing activity (URLs visited, pages viewed, search queries typed, etc) and gather personal information extracted from it (IP addresses, geolocations and other details). This sensitive data is then shared with and/or sold to third parties (potentially, cyber criminals), likewise seeking to misuse it for profit.

In summary, the presence of unwanted software on devices can lead to system infections, financial loss, serious privacy issues and even identity theft. To ensure device and user safety, all suspect applications and browser extensions/plug-ins must be eliminated immediately upon detection.

Threat Summary:
Name Ads by ExtendedLibrary
Threat Type Adware, Mac malware, Mac virus.
Detection Names Avast (MacOS:AdAgent-L [Adw]), Fortinet (Adware/Adload!OSX), 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.

ExtendedProcesserDynamicImprovmentGeneralSection and NetModuleSearch are some examples of other adware-type apps. They may seem legitimate and harmless, and users are enticed into download/installation with offers of "useful" functionality, however, the advertised features are rarely operational.

In fact, this is true of most PUAs. The only purpose of this unwanted software is to generate revenue for the developers. PUAs deliver intrusive ad campaigns, modify browsers, cause redirects and gather private information.

How did ExtendedLibrary install on my computer?

PUAs are distributed via the download/installation set-ups of other products. This deceptive marketing technique of packing normal software with unwanted or malicious additions is termed "bundling".

Rushing download/installation processes (e.g. ignoring terms, skipping steps and sections, etc.) increases the risk of unintentionally allowing bundled content into the system. Certain PUAs have "official" download sites. When clicked, intrusive ads can execute scripts to download/install these applications without users' permission.

How to avoid installation of potentially unwanted applications

You are advised to research all software prior to download/installation and/or purchase. All downloads must be done from official and verified sources. Untrusted download channels such as unofficial and free file-hosting websites, Peer-to-Peer sharing networks and other third party downloaders often include bundled and/or harmful content.

When downloading/installing, read the terms, study all available options, use the "Custom" or "Advanced" settings and opt-out of additional apps, tools, features, and so on. Intrusive advertisements typically seem legitimate, however, they can redirect to highly dubious web pages (e.g. gambling, pornography, adult-dating, etc.).

If you encounter ads or redirects of this type, inspect the system and remove all suspicious applications and browser extensions/plug-ins immediately. If your computer is already infected with ExtendedLibrary, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

Pop-up window displayed once ExtendedLibrary adware installation is complete:

Pop-up displayed once ExtendedLibrary installation is done

ExtendedLibrary adware installed onto the Safari browser:

ExtendedLibrary adware installed onto Safari

ExtendedLibrary adware installation folder:

ExtendedLibrary adware install 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 ExtendedLibrary adware using Combo Cleaner:

ExtendedLibrary adware removal:

Remove ExtendedLibrary-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.

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 ExtendedLibrary QR code
Scan this QR code to have an easy access removal guide of Ads by ExtendedLibrary on your mobile device.
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