How to uninstall ContentStyles adware

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

How to remove ContentStyles from Mac computers

What is ContentStyles?

ContentStyles supposedly improves the browsing experience, however, it actually feeds users with various intrusive advertisements and collects personal information. ContentStyles is categorized as adware. Adware-type apps are also known as potentially unwanted applications (PUAs), since people tend to download and install them inadvertently.

ContentStyles adware

Adware-type software displays intrusive advertisements in the form of banners, coupons, pop-ups, surveys, and so on. When clicked, these open various untrusted, potentially malicious web pages or execute scripts designed to download or install unwanted applications. Furthermore, apps of this type usually operate as information tracking tools. They collect browsing data such as IP addresses, entered search queries, addresses of visited pages, geolocations, and so on. Research shows that ContentStyles can read sensitive (personal) information from browsers such as passwords, telephone numbers, credit card details, and so on. Adware developers misuse the data to generate revenue by selling it to third parties (potentially, cyber criminals), who then misuse it in other ways. Users who have ContentStyles installed on their browsers and operating systems are exposed to risk of monetary loss, identity theft, and problems relating to privacy and browsing safety. Therefore, avoid ContentStyles and do not download or install this adware. If it is already installed, remove it immediately.

Threat Summary:
Name Ads by ContentStyles
Threat Type Adware, Mac malware, Mac virus.
Detection Names Avast (MacOS:Adload-AB [Trj]), AVG (MacOS:Adload-AB [Trj]), ESET-NOD32 (A Variant Of OSX/Adware.Didnarbois.A), Kaspersky (Not-a-virus:HEUR:AdWare.OSX.Adload.g), 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.

UpgradeIdeas, SystemSpin and ContentBenefits are the names of other apps that are classified as adware. In most cases, these PUAs do not deliver any useful features or any other value - they cause only problems. Most adware-type apps are designed only to serve ads and collect user-system information.

How did ContentStyles install on my computer?

Generally, adware and other PUAs are downloaded and installed through the set-ups of other software. I.e., when they are included into set-ups as "additional offers". This PUA distribution method ("bundling") is used to trick people into downloading and installing PUAs with other, regular software. In most cases, offers to download or install unwanted apps are listed in "Custom", "Advanced", or other similar options, however, many users fail to check and change these settings, thereby allowing PUAs to infiltrate. In some cases, PUAs are downloaded and installed through deceptive advertisements. Some ads cause unwanted downloads/installations by running certain scripts, however, this happens only when people click the ads.

How to avoid installation of potentially unwanted applications

Programs and files should be downloaded from official websites and through direct links. Third party downloaders, installers, unofficial websites, Peer-to-Peer networks (e.g., torrent clients, eMule), and other similar channels and sources should not be to download or install software - they are often used to distribute various unwanted applications. If a download and/or installation setup contains settings such as "Custom", "Advanced", check them (and change them if necessary). Dismiss any offers to download or install additional software. Intrusive ads that are displayed on dubious websites should not be clicked. These can redirect people to untrusted web pages or download/install unwanted, potentially malicious software. Remove any suspicious, unwanted extensions, plug-ins and add-ons installed on the browser, and programs of this kind installed on the operating system. If your computer is already infected with ContentStyles, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

Pop-up window displayed once ContentStyles installation is complete:

pop-up displayed once ContentStyles installation is done

ContentStyles installed on Safari:

contentstyles adware installed on safari 

ContentStyles installation folder:

contentstyles adware installation folder and its contents 

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 ContentStyles adware using Combo Cleaner:

ContentStyles adware removal:

Remove ContentStyles-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 contentstyles 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 ContentStyles removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove ads by contentstyles 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 contentstyles 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 contentstyles 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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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 ContentStyles 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 ContentStyles on your mobile device.
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