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Key Coupons Adware

Also Known As: Ads by Key Coupons
Type: Adware
Damage level: Medium

What is Key Coupons?

The Key Coupons rogue browser extension claims to save time and money by displaying special deals/discounts and enabling other useful features that will enhance the online shopping experience. This may seem legitimate and useful functionality, however, this add-on is categorized as a potentially unwanted program (PUP) or adware.

Key Coupons employs a deceptive free software marketing method called 'bundling' (stealth installation of additional programs together with other software) to install on Internet browsers without users' permission.

Following successful infiltration on Internet Explorer, Google Chrome, and Mozilla Firefox, the user will experience intrusive online advertisements (coupons, comparison shopping, search, etc.) that can lead to further computer infections.

Key Coupons adware

Furthermore, Key Coupons continually monitors users' Internet browsing activity and records various software and hardware information including IP addresses, websites visited, pages viewed, search queries, etc. This collected data might be personally identifiable, and therefore, the behavior of this extension can lead to serious privacy issues or identity theft.

Key Coupons is similar (in some cases identical) to other rogue applications claiming to enable similar features. For instance, CoupSeek, AP Suggestor, Download Keeper, and SalePlus. All claim to save time and money by enabling identical features, however, as with Key Coupons, they provide no value to the user.

These applications are developed to generate revenue by the display of intrusive online advertisements and sharing collected data with third parties. For this reason, you are strongly advised to eliminate Key Coupons from your system immediately.

At time of research, popular freeware download websites such as softonic.com, soft32.com, download.com, and many others, employed small programs called 'download clients' (also called 'download managers', 'installers', etc.) to monetize their traffic and free services.

Download clients are developed to offer installation of promoted (according to the developers, '100% legitimate and virus-free') browser extensions or applications together with the chosen free software. Despite these statements, reckless download and installation of freeware often results in adware or malware infections.

This situation can be avoided by observing each step of the free software download procedure and never accepting offers to install additional apps. Furthermore, downloaded programs should be installed using the 'Custom' or 'Advanced' options - this will reveal any bundled apps listed for installation and allow you to decline them.

If you have installed Key Coupons, the removal guide below will help you to uninstall this adware from your system.

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Quick menu:

Key Coupons adware removal:

Windows 11 users:

Accessing Apps and Features in Windows 11

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:

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.

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.

macOS (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.

Key Coupons adware uninstall via Control Panel

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

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

Remove Key Coupons adware from Internet browsers:

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

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing Key Coupons ads from Internet Explorer step 1

Click the "gear" icon Internet Explorer options icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for "Key Coupons", select this entry and click "Remove".

Removing Key Coupons ads from Internet Explorer step 2

Optional method:

If you continue to have problems with removal of the ads by key coupons, 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.

Resetting Internet Explorer settings to default on Windows XP

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.

Resetting Internet Explorer settings to default on Windows 7

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

Reseting Internet Explorer settings to default in Windows 8 - accessing

In the opened window, select the Advanced tab.

Resetting Internet Explorer settings to default on Windows 8 - Internet options advanced tab

Click the Reset button.

Resetting Internet Explorer settings to default on Windows 8 - click the Reset button in the Internet options advanced tab

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

Resetting Internet Explorer settings to default on Windows 8 - confirm settings reset to default by clicking the reset button

Google Chrome logoRemove malicious extensions from Google Chrome:

Removing Key Coupons  ads 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 "Extensions". Locate "Key Coupons", select this entry and click the trash can icon.

Removing Key Coupons ads from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the ads by key coupons, 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 logoRemove malicious plugins from Mozilla Firefox:

Removing Key Coupons ads 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 "Extensions", in the opened window, remove "Key Coupons".

Removing Key Coupons ads from Mozilla Firefox step 2

Optional method:

Computer users who have problems with ads by key coupons 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 ads by key coupons, 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.

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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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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
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