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How to uninstall ChannelSystem from browsers and computers

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

What is ChannelSystem?

ChannelSystem is a potentially unwanted application (PUA) that is classified as adware, however, if also functions as a browser hijacker. This app serves advertisements, promotes a fake search engine, and possibly collects browsing data and various other information.

ChannelSystem is classified as a PUA because users often download and install adware-type apps (including browser hijackers) inadvertently.

ChannelSystem adware

Usually, apps such as ChannelSystem serve banners, pop-ups, coupons, surveys and other ads. These commonly promote (open) dubious websites. In some cases, they are capable of causing download/installation of potentially unwanted or even malicious applications.

As mentioned, ChannelSystem functions as a browser hijacker. Therefore, it modifies browser settings. More precisely, it changes the default search engine, homepage, and new tab to the address of a fake search engine so that users are forced to visit this site when they enter search queries into the URL bar, open a browser, or new tab.

Note that most browser hijackers promote search engines, which do not generate any unique results, or they generate results that can include links to untrusted sites.

The unwanted addresses in browser settings can only be removed when the hijacking app responsible is uninstalled from the browser and operating system.

Additionally, it is likely that ChannelSystem will collect browsing data (e.g., IP addresses, geolocations, addresses of opened websites, entered search queries), and private, sensitive information. The gathered information could be sold to third parties (potentially, cyber criminals) or misused to generate revenue in other ways.

Therefore, users with apps such as ChannelSystem installed on the browser and/or computer might encounter issues relating to online privacy, browsing safety, and they might even become victims of identity theft.

Threat Summary:
Name Ads by ChannelSystem
Threat Type Adware, Mac malware, Mac virus.
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.

More examples of other apps that are similar to ChannelSystem are CoordinatorData, PublicFraction and AdvancedNetworkSearch. They do not work as advertised - they do not improve the browsing experience or include any useful features.

Furthermore, apps such as ChannelSystem can cause the issues mentioned above and it is therefore not safe to have them installed.

How did ChannelSystem install on my computer?

Unwanted downloads and installations often occur when developers distribute PUAs by integrating them into the download/installation setups of other programs as "extra offers". This distribution method is known as "bundling". The offers can be declined in "Custom", "Advanced" and other similar settings of the setups (or by unticking certain checkboxes).

Many users fail to check and change these settings (or untick the checkboxes), thereby allowing PUAs to infiltrate together with the desired software.

PUAs are also downloaded and installed by clicking deceptive advertisements (usually on untrusted sites) that execute certain scripts.

How to avoid installation of potentially unwanted applications?

You are advised to download files and programs from official websites and via direct download links. Other tools and sources such as third party downloaders and installers, unofficial pages, and Peer-to-Peer networks (e.g., eMule, torrent clients) should not be used to download or install software. Check all "Custom", "Advanced" and other similar settings (or available checkboxes) for offers to download and/or install unwanted apps.

Do not click ads on dubious websites, since they can be designed to open bogus web pages or cause unwanted downloads and installations. Remove any unwanted, suspicious extensions, plug-ins and add-ons installed on the browser, and software of this kind from the operating system.

Pop-up that appears after installation of the ChannelSystem app:

channelsystem adware pop-up displayed once installation is done

ChannelSystem installation folder:

channelsystem adware contents 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 ChannelSystem adware using Combo Cleaner:

ChannelSystem adware removal:

Remove ChannelSystem-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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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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Ads by ChannelSystem QR code
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