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Kozaka Ads

Also Known As: Kozaka Virus
Type: Adware
Damage level: Medium

What is Kozaka?

The Kozaka browser plugin displays website reviews and its developers also claim that it allows users to search multiple sites simultaneously.

In fact, the Kozaka extension is categorized as adware or a potentially unwanted application since it installs on Internet browsers (Internet Explorer, Google Chrome, and Mozilla Firefox) without users' consent and causes various unwanted ads. Commonly, Internet users install this unwanted browser add-on when downloading and installing free software.

The browser extension is distributed using a deceptive software marketing method called 'bundling'. Unwilling installation of Kozaka is caused by dubious 'download clients' or free software 'installers'.

kozaka adware

After successful infiltration, this add-on tracks users' Internet browsing habits, recording the IP address, unique identifier number, operating system, browser information, URLs visited, pages viewed, search queries entered, and other software and hardware information.

Unwanted advertisements generated by this browser plugin include search, banner, text link, transitional, interstitial, and full page ads. Note that these ads are derived from various unverified third parties, and thus, clicking on them may cause virus and malware infections.

A clear indication that your Internet browsers are infected with this adware are "Ads by Kozaka", "Powered by Kozaka", and "Kozaka Deals" ads visible whilst browsing the Internet. For these reasons, you are advised to eliminate this potentially unwanted application from your Internet browser/s.

The Kozaka browser plugin adds no significant value and causes various unwanted ads. The developer (Super Web LLC) releases identical browser extensions under different names in order to avoid detection by legitimate antivirus and anti-spyware programs. This fact reaffirms why you should not trust any browser plugins created by this company.

Note also that the behavior of Kozaka is identical to previous variants named SkyWebber and Higher Aurum. The best way to avoid installation of adware such as this is to pay close attention when downloading free software.

Computer users should be aware that, today, most freeware download websites use 'download clients' - small programs offering installation of promoted browser extensions together with the chosen free software. If your download is managed by a download client, opt-out of installation of any promoted browser extensions by clicking the 'decline' button.

If you observe Kozaka ads when browsing the Internet, use the removal guide provided to eliminate this adware from your Internet browser/s.

Deceptive free software installer used in kozaka adware distribution:

kozaka adware installer

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Quick menu:

Kozaka 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.

Kozaka uninstall (Control Panel)

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

After uninstalling Kozaka, scan your computer for any remaining unwanted components or possible malware infections. Recommended malware removal software.

Remove Kozaka from Internet browsers:

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

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Kozaka removal from Internet Explorer extensions step 1

Click on the "gear" icon Internet Explorer options icon (at the top right corner of Internet Explorer) select "Manage Add-ons". Look for "Kozaka" and disable it.

Kozaka removal from Internet Explorer extensions step 2

Optional method:

If you continue to have problems with removal of the kozaka virus, 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:

Kozaka removal from Google Chrome extensions 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: "Kozaka", select it and click the trash can icon.

Kozaka removal from Google Chrome extensions step 2

If the Kozaka extension is greyed-out and you cannot remove it ("This extension is managed and cannot be removed or disabled"), follow this removal guide - how to remove a managed Google Chrome extension?

Optional method:

If you continue to have problems with removal of the kozaka virus, 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:

Kozaka removal from Mozilla Firefox extensions step 1

Click on the Firefox menu firefox menu icon (at the top right corner of the main window) select "Add-ons". Click on "Extensions" and disable this add-on: "Kozaka".

Kozaka removal from Mozilla Firefox extensions step 2

Optional method:

Computer users who have problems with kozaka virus 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 kozaka virus, 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
Kozaka Virus QR code
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