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Koala Personal Search Ads

Also Known As: Ads by Koala Personal Search
Type: Adware
Damage level: Medium

What is Koala Personal Search?

Developed by Skyter Technologies Ltd, Koala Personal Search is a potentially unwanted program (PUP) claiming to enhance the Internet browsing experience by aggregating search results from personal accounts such as Facebook and Gmail.

Although this is a useful and popular browser plug-in, some computer users report that they observe ads by Koala Personal Search and that they did not willingly install this plug-in.

Note that Koala Personal Search is not related to malware or virus infections and is a legitimate browser add-on, however, this plug-in may be installed inadvertently without users' consent when 'bundled' with free software downloaded from the Internet. Despite this, Koala Personal Search plug-in installation is not caused by malicious software.

koala personal search adware

To avoid installation of unwanted browser add-ons, express caution when installing free software or free browser plug-ins. Developers of free software commonly bundle their programs and extensions with additional browser add-ons in order to monetize their freeware downloads.

Each time you install free software downloaded from the Internet, closely inspect each installation step for any clues that your Internet browser homepage and default search engine settings may be changed, or that additional browser add-ons will be installed.

Koala Personal Search is similar to other potentially unwanted applications that infiltrate Internet browsers (Internet Explorer, Google Chrome, and Mozilla Firefox) using the deceptive software marketing method, bundling. Examples include eDeals, SurfShield, IneedSpeed, and DonutQuotes among many others.

Applications or browser add-ons that install together with free software often add no real value for the user, and moreover, they commonly generate intrusive online ads (in the case of Koala Personal Search, users may experience 'Ads by Koala Personal Search', 'Koala Shopper', and other unwanted ads while browsing the Internet).

To avoid installation of these browser plug-ins, be attentive when downloading free software. If your download is managed by a 'download client', opt-out of installation of any advertised (bundled) browser extensions by clicking the 'decline' button.

The Koala Personal Search browser add-on is not a virus or malware, and therefore, if you have installed it willingly, you need take no further action. If, however, this browser extension was installed without consent, use the removal guide provided to eliminate it.

Deceptive free software installer used in Koala Personal Search adware distribution:

koala personal search adware installer

Koala Personal Search adware generating intrusive online ads ('Brought to you by Koala Personal Search'):

koala personal search adware generating intrusive online ads

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Quick menu:

Koala Personal Search 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.

koala personal search adware uninstall via Control Panel

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

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

Remove Koala Personal Search adware from Internet browsers:

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

Internet Explorer logoRemove malicious add-ons from Internet Explorer:

Removing koala personal search 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 "Koala Personal Search", select this entry and click "Remove".

Removing koala personal search ads from Internet Explorer step 2

Optional method:

If you continue to have problems with removal of the ads by koala personal search, 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 koala personal search 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 on "Extensions". Locate: "Koala Personal Search", select this entry and click the trash can icon.

Removing koala personal search ads from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the ads by koala personal search, 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 koala personal search 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 on "Extensions", in the opened window, remove "Koala Personal Search".

Removing koala personal search ads from Mozilla Firefox step 2

Optional method:

Computer users who have problems with ads by koala personal search 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 koala personal search, 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.

Post a comment:
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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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Removal Instructions in other languages
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
Ads by Koala Personal Search QR code
Scan this QR code to have an easy access removal guide of Ads by Koala Personal Search on your mobile device.
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