Ads by Content Defender

What is Content Defender?

Content Defender (created by Artex management S.A.) is a potentially unwanted program (PUP) claiming to protect computers from malicious content - "Content Defender is a tool created to protect your PC against unwanted and malicious content. Our development team worked hard to provide you with most actual content protection system."

Although these claims may trick some users into believing that Content Defender is a legitimate and useful app, it is categorized as adware.

This potentially unwanted program (PUP) usually infiltrates systems without users' consent. Following successful installation, Content Defender displays intrusive online advertisements and collects various Internet browsing-related information.

This adware generates a wide rage of advertisements including in-text link, banner, coupon, various e-commerce offers, and so on. To achieve this, developers of Content Defender (Artex Management S.A.) employ a virtual layer, which enables placement of any graphical content on visited websites.

Although most of these advertisements redirect to online stores and other similar e-commerce websites, there is a high probability that some will redirect to rogue sites containing infectious content.

Clicking the ads can result in high-risk adware or malware infections - none originate from the visited sites and conceal underlying content, thus, significantly diminish the Internet browsing experience. Another downside of Content Defender is information tracking.

Content Defender collects Internet Protocol (IP) addresses, Internet service provider (ISP), computer information (CPU, operating system, etc.), browsing details (websites visited, pages viewed, search queries, etc.), and other similar information that may contain personally identifiable details.

This gathered information is later shared with third parties who can misuse it to generate revenue. For this reason, having Content Defender installed on your system may lead to various privacy issues. We strongly recommend that you uninstall this adware immediately.

Content Defender Privacy Policy regarding information sharing:

We may share your information with others for the following purposes: To provide the Services, through Our technology, Our affiliates, service providers and/or business partners; If the ownership or management of our Services is transferred to another entity as a result of a merger or an acquisition; We may share the information with affiliated companies such as subsidiaries, sister-companies and parent companies to enhance our and our affiliates’ ability to provide and offer our and their services;

There are hundreds of other PUPs identical to Content Defender including Shoppr, Oasis Space, and High Stairs. These apps offer useful features simply to trick users to install. Once installed, neither Content Defender, nor any other adware, provides the functionality promised.

The purpose of these PUPs is to generate revenue by delivering advertisements and collecting personally identifiable information.

How did Content Defender install on my computer?

Content Defender often stealthily infiltrates systems during download or installation of other software. This deceptive software marketing method is called 'bundling'.

The developers know that many users do not express enough caution when downloading and installing software, and thus, hide rogue applications such as Content Defender within the 'Custom' or 'Advanced' settings. By rushing these processes and skipping this section, users inadvertently install rogue applications and expose their systems to risk of further infection.

How to avoid installation of potentially unwanted applications?

This type of computer infection can be prevented by closely analyzing the download and installation procedures. Follow each step and decline all offers to download/install additional programs.

Furthermore, a completely safe download and installation can be only performed by using the 'Custom' or 'Advanced' options - never skip this section, since it will reveal any concealed applications listed for installation and enable you to cancel them.

Content defender adware installer setup:

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Quick menu:

• What is Content Defender?
• STEP 1. Uninstall Content Defender application using Control Panel.
• STEP 2. Remove Content Defender adware from Internet Explorer.
• STEP 3. Remove Content Defender ads from Google Chrome.
• STEP 4. Remove 'Ads by Content Defender' from Mozilla Firefox.
• STEP 5. Remove Content Defender ads from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

Content Defender adware removal:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for "Content Defender", select this entry and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted program that causes Content Defender ads, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove Content Defender adware from Internet browsers:

At time of research, Content Defender did not install its browser plug-ins on Internet Explorer, Google Chrome, or Mozilla Firefox, however, it was bundled with other adware. Therefore, you are advised to remove all potentially unwanted browser add-ons from your Internet browsers.

Video showing how to remove potentially unwanted browser add-ons:

Remove malicious add-ons from Internet Explorer:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".

Optional method:

If you continue to have problems with removal of the content defender adware, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

In the opened window, select the Advanced tab.

Click the Reset button.

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "Tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons, select these entries and click the trash can icon.

Optional method:

If you continue to have problems with removal of the content defender adware, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with content defender adware removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Optional method:

If you continue to have problems with removal of the content defender adware, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

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