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How to uninstall ConnectSystem adware from your operating system?

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

What is ConnectSystem?

ConnectSystem is a piece of rogue software, classified as adware. It also has browser hijacker traits. It is designed to run intrusive advertisement campaigns and promote fake search engines through modifications to browsers. Additionally, adware and browser hijackers typically have data tracking abilities. Due to the questionable methods used to distribute ConnectSystem, it is also categorized as a PUA (Potentially Unwanted Application).

ConnectSystem adware

ConnectSystem adware in detail

Adware displays pop-ups, banners, coupons, surveys, and other intrusive advertisements on any visited website and/or different interfaces. The delivered ads seriously diminish the browsing experience by overlaying webpage content and slowing down the browsing speed.

In addition, these adverts endanger device and user safety. They endorse various sale-oriented, unreliable, rogue, deceptive/scam, and malicious websites. Some intrusive ads can stealthily download/install software (e.g., PUAs) - when clicked on.

Browser hijackers assign fake web searcher addresses as browsers' homepage, default search engine, and new tab/window URLs. Hence, with such a piece of software installed: new browsers/tabs opened and search queries typed into the URL bar - redirect to the promoted search engine.

Illegitimate web searchers usually cannot provide search results, so they redirect to Yahoo, Bing, Google, and other genuine search engines. Furthermore, browsers can deny access to the browser settings and/or reset any permitted changes made. Therefore, restoring a hijacked browser is impossible without removing the software affecting it.

What is more, most PUAs (adware and browser hijackers included) have data tracking abilities. Information of interest includes: URLs visited, webpages viewed, search queries typed, IP addresses/ geolocations, personally identifiable details, and so forth.

PUA developers monetize the gathered data by sharing it with and/or selling it to third-parties (potentially, cyber criminals). To summarize, the presence of unwanted apps on devices can lead to system infections, severe privacy issues, financial losses, and even identity theft. It is strongly advised to eliminate all suspicious applications and browser extensions/plug-ins without delay.

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

Adware in general

UpgradeFilterAccessDefault, and RemoteView are a couple examples of adware. This software appears ordinary and harmless. Users are lured into download/installation with offers of various features. However, the promised functions are rarely operational. In fact, practically all PUAs have nonoperational functionalities.

The sole purpose of unwanted applications is to generate revenue for the developers; hence, functionality and user safety are irrelevant. Instead of delivering on any promises, PUAs can run intrusive advertisement campaigns, hijack browsers, cause redirects, and collect private information.

How did ConnectSystem install on my computer?

PUAs can be downloaded/installed alongside other software. This deceptive marketing method of packing regular programs with unwanted or malicious additions - is called "bundling". By rushing through download/installation processes (e.g., skipping steps and sections, etc.) - users risk allowing bundled content into their devices.

Intrusive adverts are used to distribute PUAs as well. Once clicked on, the ads can execute scripts to make downloads/installations without user consent. Some PUAs have "official" promotional/download pages.

How to avoid installation of potentially unwanted applications?

It is recommended to research software prior to download/installation. Additionally, all downloads must be performed from official/verified sources. Untrustworthy download channels, e.g., unofficial and free file-hosting sites, Peer-to-Peer sharing networks, and other third-party downloaders - commonly offer bundled and/or harmful content.

When downloading/installing, it is important to read terms, explore possible options, use the "Custom/Advanced" settings, and opt-out from additional apps, tools, features, and so on. Intrusive advertisements appear legitimate; however, they redirect to highly questionable websites (e.g., adult-dating, pornography, gambling, etc.).

In case of encounters with such ads and/or redirects, the system must be inspected and all suspicious applications and browser extensions/plug-ins detected - immediately removed from it. If your computer is already infected with ConnectSystem, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

ConnectSystem adware's installation folder:

ConnectSystem adware install folder

ConnectSystem adware installed onto the Safari browser:

ConnectSystem adware installed onto Safari

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 adware and browser hijackers from a Mac computer:

ConnectSystem adware removal:

Remove ConnectSystem-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 connectsystem 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 ConnectSystem removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove ads by connectsystem 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 connectsystem 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 connectsystem 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.

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