Shieldren Virus

Also Known As: Shieldren ads
Type: Adware
Distribution: Low
Damage level: Medium

Shieldren virus removal instructions

What is Shieldren?

The Shieldren rogue browser add-on claims to prevent children from encountering websites containing adult content. Created by Revizer Technologies Ltd, the software is optimized for Mozilla Firefox and Google Chrome. While Shieldren seems a useful and legitimate browser extension, it is considered to be a potentially unwanted program, which generates intrusive online advertisements. Shieldren employs a deceptive software marketing method called 'bundling' (stealth installation of additional applications together with the chosen software) to install on browsers without users' consent. Following successful infiltration to Mozilla Firefox and Google Chrome, Shieldren generates intrusive online advertisements including sponsored links, banner, discounts, and pop-up ads. In addition, users' Internet browsing activity is continually tracked, since this rogue browser add-on records various information, which can be personally identifiable. For example, default search engines, search queries, websites visited, locations, MAC and IP addresses, and other similar software and hardware details. Having a potentially unwanted application such as Shieldren installed on your PC, may lead to serious privacy issues or malware infections. Internet users wishing their children to browse safely online, should aim for legitimate anti-spyware or anti-virus software (with parental controls), rather than random or suspicious browser plug-ins.

Shieldren Virus

Installation of rogue browser add-ons and unwanted toolbars (which redirect to potentially unwanted websites or cause intrusive online ads), can be prevented by paying close attention during the download and installation of freeware, and by disallowing any suggested changes to browser settings. Although Shieldren is not directly linked to malware or virus infections, ads caused by this potentially unwanted application may lead to high-risk security infections. For this reason, you are strongly advised to remove Shieldren from your Internet browsers.

Most current freeware download websites including, for example, soft32.com, download.com, softonic.com, and others, use small programs called 'download clients' to monetize their free services. Download clients offer installation of promoted 'legitimate' browser extensions together with the chosen free software. Thus, careless installation of freeware risks computer infection with adware or malware. To avoid installation of Shieldren, or other potentially unwanted browser extensions (such as BlockAndSurf and SaferSurf), closely inspect each step during the download of freeware and never accept installation of any additional applications offered. If you are installing downloaded software, select the 'Custom' or 'Advanced' installation options - this will reveal any bundled applications listed for installation and you will be able to decline them. Internet users who have installed Shieldren should follow this removal guide to eliminate it from their Internet browsers.

The Shieldren potentially unwanted application generates ads from the following sources: Dealply, Superfish, Jollywallet, Text Enhance, GetDeal, Daily Offer Service, IRobinhood, PriceSparrow, and CouponBuddy.

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Quick menu:

Shieldren adware removal:

Windows 7 users:

Accessing Programs and Features (uninstall) in Windows 7

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

Windows XP users:

Accessing Add or Remove Programs in Windows XP

Click Start, choose Settings and click Control Panel. Locate and click Add or Remove Programs.

Windows 10 and Windows 8 users:

Accessing Programs and Features (uninstall) in Windows 8

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.

Mac OSX users:

Uninstall app in OSX (Mac)

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.

Shieldren uninstall via Control Panel

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

After uninstalling the potentially unwanted program (which causes Shieldren ads), scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove Shieldren from Internet browsers:

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

Google Chrome logo Remove malicious extensions from Google Chrome:

Removing Shieldren from Google Chrome step 1

Click the Chrome menu icon Google Chrome options icon (at the top right corner of Google Chrome), select "Tools" and click on "Extensions". Locate: "Shieldren", select this entry and click the trash can icon.

Removing Shieldren from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the shieldren ads, reset your Google Chrome browser settings. Click the Chrome menu icon Google 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.

Google Chrome settings reset step 1

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

Google Chrome settings reset step 2

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

Google Chrome settings reset step 3

Mozilla Firefox logo Remove malicious plugins from Mozilla Firefox:

Removing Shieldren from Mozilla Firefox step 1

Click the Firefox menu firefox menu icon (at the top right corner of the main window), select "Add-ons". Click on "Extensions", in the opened window remove "Shieldren".

Removing Shieldren from Mozilla Firefox step 2

Optional method:

Computer users who have problems with shieldren ads removal can reset their Mozilla Firefox settings.

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

Accessing settings (Reset Firefox to default settings step 1)

Select Troubleshooting Information.

Accessing Troubleshooting Information (Reset Firefox to default settings step 2)

In the opened window, click the Refresh Firefox button.

Clicking on Refresh Firefox button (Reset Firefox to default settings step 3)

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

Confirm your want to reset Firefox settings to default (Reset Firefox to default settings step 4)

safari browser logoRemove malicious extensions from Safari:

removing adware from safari step 1 - accessing preferences

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

removing adware from safari step 2 - removing extensions

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...

resetting safari step 1

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

resetting safari step 2

Microsoft Edge (Chromium) logoRemove malicious extensions from Microsoft Edge:

Removing adware from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) 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.

Removing adware from Microsoft Edge step 2

Optional method:

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

Microsoft Edge (Chromium) reset step 1

In the opened settings menu select Reset settings.

Microsoft Edge (Chromium) reset step 2

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.

Microsoft Edge (Chromium) reset step 3

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

Summary:

declining installation of adware while downloading free software sampleCommonly, 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.

Removal assistance:
If you are experiencing problems while trying to remove shieldren ads from your computer, please ask for assistance in our malware support forum.

Post a comment:
If you have additional information on shieldren ads or it's removal please share your knowledge in the comments section below.

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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Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Shieldren ads 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 Shieldren ads on your mobile device.
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