Virus Removal Guides

Kokotrokot Virus


Kokotrokot is a browser hijacker known for for rerouting user searches to sites full of ads, banners, and pop-ups. When operating in the system, Kokotrokot typically sets a new browser search engine and replaces the homepage with one of its own.


The Kokotrokot virus typically changes the browser’s homepage and the default search engine

The programs from the browser hijacker type are known to be extremely irritating. This is because it can be quite frustrating to deal with them and to remove the changes they have imposed on popular web browsers like Chrome, Safari, Edge, Opera, and Firefox. Moreover, most web users often mistake the browser hijackers for viruses and initially think that they must have been infected with malware from the ranks of Trojans, Ransomware, or Spyware. The reason is, when a program like Kokotrokot becomes part of the system, it typically changes the browser’s homepage and the default search engine without asking for approval and then it starts to initiate auto redirects to various random sites full of online ads, pop-ups, and banners without any specific action from the user’s side.

All of this can naturally raise some concerns and suspicion but, fortunately, we are here to tell you that browser hijackers such as Kokotrokot are not software that can harm your machine in a direct way. In fact, in this article, we will explain exactly what the programs of this type can do and how to safely uninstall them and remove their ads in case they bother you. You will find a detailed removal guide that contains all the steps that you need to take just below, so stay on this page and read on.

The Kokotrokot Virus

The Kokotrokot virus is typically used for the purpose of generating profit for it creators by showing paid advertisements on the screens of web users while the latter surf the web. The Kokotrokot virus basically ensure that the adverts of different services, products, and their related websites are displayed on the monitor during the regular web surfing sessions.

In this sense, programs like Kokotrokot and Captcha Reverse have no destructive code and no criminal intentions and this sets them apart from real viruses such as Trojans and Ransomware. Nevertheless, many security experts identify browser hackers as potentially unwanted and advise web users to uninstall them from their system as soon as possible.

One of the main reasons for that is the fact that most applications of this type, including Kokotrokot, employ some questionable and quite invasive online advertising methods in order to stream more ads and to redirect the users’ searches to paid web links. For instance, not only can they replace the browser’s default search engine or homepage, but, in many cases, such programs can also collect data regarding the users’ web surfing habits through the hijacked browser. Moreover, the hijackers can run their ad-generating and page-redirecting processes in the background of the system and use a significant amount of the power of your computer. As a result, you may start to experience unusual slow-downs in your system and some of your programs may take longer to respond or perform a command. Your web browser may become unresponsive, crash, or frequently redirect you to some predefined web locations which you have never had the intention to visit.

Fortunately, if the browser hijacker is removed, all these annoying activities would cease. That’s why we suggest that you use the instructions below and get rid of Kokotrokot once and for all.


Name Kokotrokot
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Modifications in the browser’s homepage and the main search engine, auto redirects to random sites, aggressive ad-generation on every web page that you visit.
Distribution Method Torrents, spam messages,free download managers and software bundles are common distribution methods for this software.
Detection Tool

OFFER *Free Remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. SpyHunter's EULA,  Privacy Policy, and more details about Free Remover.

Remove Kokotrokot Virus

To try and remove Kokotrokot quickly you can try this:

  1. Go to your browser’s settings and select More Tools (or Add-ons, depending on your browser).
  2. Then click on the Extensions tab.
  3. Look for the Kokotrokot extension (as well as any other unfamiliar ones).
  4. Remove Kokotrokot by clicking on the Trash Bin icon next to its name.
  5. Confirm and get rid of Kokotrokot and any other suspicious items.

If this does not work as described please follow our more detailed Kokotrokot removal guide below.

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).


Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

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    After you open their folder, end the processes that are infected, then delete their folders. 

    Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 

    Hold together the Start Key and R. Type appwiz.cpl –> OK.

    You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

    Type msconfig in the search field and hit enter. A window will pop-up:

    Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

    Hold the Start Key and R –  copy + paste the following and click OK:

    notepad %windir%/system32/Drivers/etc/hosts

    A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

    If there are suspicious IPs below “Localhost” – write to us in the comments.

    Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

    1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
    2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
    3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.

    • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

    Right click on the browser’s shortcut —> Properties.

    NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).

    Properties —–> Shortcut. In Target, remove everything after .exe.

      Remove Kokotrokot from Internet Explorer:

    Open IE, click   —–> Manage Add-ons.

    Find the threat —> Disable. Go to  —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

     Remove Kokotrokot from Firefox:

    Open Firefoxclick    ——-> Add-ons —-> Extensions.

    Remove Kokotrokot from Chrome:

    Close Chrome. Navigate to:

     C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

    Rename it to Backup Default. Restart Chrome.

    Type Regedit in the windows search field and press Enter.

    Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

    • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
      HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
      HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

    If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

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