How to uninstall StockCommon adware

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

How to remove StockCommon from Mac computers

What is StockCommon?

StockCommon is an adware-type application, which serves various advertisements via the user interface. Additionally, it is designed to promote the Safe Finder website through another dubious web address (akamaihd.net). Commonly, apps of this type not only serve ads but also collect information relating to users' browsing habits. StockCommon is likely to have these characteristics. People often download and install adware inadvertently. For this reason, apps such as StockCommon are categorized as potentially unwanted applications (PUAs).

StockCommon adware

In most cases, people who have adware such as StockCommon installed on the browser and/or operating system are served with ads that include coupons, banners, surveys, pop-ups, etc. Clicking these advertisements allows them to open dubious websites or even download and install other PUAs. Therefore, never click ads that appear due to installed adware (including those that appear on dubious web pages). Many adware-type apps enable the developers to generate revenue by collecting information relating to browsing activities. Usually, they target details such as geolocations, addresses of opened/visited websites, entered search queries, and IP addresses. They might also record private, sensitive information. The details are sold to third parties (cyber criminals) who would misuse them to generate revenue in other ways. It is not safe to have StockCommon or other similar apps installed on browsers and/or computers, since this could cause problems relating to browsing safety and online privacy, and users might even become victims of identity theft.

Threat Summary:
Name Ads by StockCommon
Threat Type Adware, Mac malware, Mac virus.
Detection Names Endgame (Malicious (moderate Confidence)), ESET-NOD32 (A Variant Of OSX/Adware.Synataeb.C), Kaspersky (Not-a-virus:HEUR:AdWare.OSX.Adload.h), ZoneAlarm by Check Point (Not-a-virus:HEUR:AdWare.OSX.Adload.h), 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 three days free trial available.

More examples of apps that are very similar to StockCommon include TechnologyCustom, BufferKey and BoostSelect. They are advertised as legitimate and useful, however, few improve the browsing experience or deliver any features, or any other value. On the contrary, adware is designed only to display ads and gather information, which can be the reason behind serious issues.

How did StockCommon install on my computer?

PUAs are often distributed using a deceptive marketing method called "bundling", which developers employ to deceive people into downloading and installing unwanted apps together with other programs. They include unwanted apps into the download/installation set-ups of other programs as 'additional offers' and hope that users will fail to decline them. The offers can generally be found in "Custom", "Advanced" and other similar settings - many users fail to check and change the settings when they download and install programs, thereby allowing rogue apps that are included in the set-ups to infiltrate. Sometimes unwanted downloads and installations can be caused by clicking deceptive ads, which then execute certain scripts.

How to avoid installation of potentially unwanted applications

Do not use unofficial web pages, Peer-to-Peer networks (torrent clients, eMule), third party downloaders, installers or other channels of this kind to download or install your programs. Use official websites and direct links. Check all "Custom", "Advanced" and other similar options of the download/installation setup and decline any offers to download or install unwanted software. Do not click intrusive advertisements that appear on dubious pages (e.g., pages relating to gambling, pornography, adult dating), since these can open other untrusted websites or even cause download/installation of unwanted applications. Remove any unwanted, suspicious extensions, add-ons and plug-ins installed on the browser, and programs of this kind installed on the operating system. If your computer is already infected with StockCommon, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

Pop-up window displayed once StockCommon installation is complete:

pop-up displayed once StockCommon installation is done

StockCommon redirecting users to Safe Finder website via akamaihd.net:

StockCommon redirecting users to Safe Finder website via akamaihd.net

StockCommon installed on Safari:

stockcommon adware installed on safari

StockCommon installation folder:

stockcommon adware contents folder

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 StockCommon adware using Combo Cleaner:

StockCommon adware removal:

Remove StockCommon-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 stockcommon 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 StockCommon removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove ads by stockcommon 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 stockcommon 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 stockcommon 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 StockCommon 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 StockCommon on your mobile device.
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