Lulachu is a browser hijacker application developed to make changes to your web browser and to display sponsored advertisements on every website you visit. Lulachu can replace the main search engine and set up a new homepage that redirects you to commercial-filled websites.

Lulachu Is associate with riskware

Browser hijackers can easily qualify as one the most irritating kinds of software around the web. This is the reason why we’ve created this article and the removal guide below – to help the users who have landed on their systems safely uninstall its changes and remove its traces from their browser. Under this post, you will find also a professional removal tool which can scan your system and deal with the browser hijacker automatically.

Many web users may be confused about the nature of browser hijackers like and may easily mistake them for viruses or malware. Fortunately, cannot mess with the one’s files like Ransomware or spy on the user like Trojan Horses and Spyware.

That’s why you don’t need to panic. The sole purpose of most browser hijackers is to promote certain brands, products, services, and their related websites by initiating automatic page-redirects and generating sponsored ads on the users’ screen. This activity is solely marketing-oriented but, to many web users, it appears to be rather intrusive.

The Lulachu Virus

Programs like the Lulachu virus can flood Chrome, Firefox, Edge, Safari and other browsers with dozens of irritating online ads in the form of pop-ups, banners, and links, which, once clicked on, redirect them to random web pages without a warning. The changes that the Lulachu virus impose on the browser’s settings (such as replacing the homepage and setting a new default search engine) are also not to be ignored.

Moreover, the random pop-ups, ads, banners and on-screen notifications may oftentimes lead to questionable web locations where real Ransomware, Trojans, and other viruses may lurk. Not to mention that the constant ad-generation and page-redirect activities performed by may eat up a lot of system resources and may compromise the overall performance of your computer. For instance, you may start noticing increased sluggishness, some programs may take ages to load, and the hijacked web browser may become particularly slow.

So, with all this in mind, it is probably best to see the removal guide below and quickly get rid of in order to avoid any potential issues. Once you’ve done that, you should also think about how to prevent browser hijackers from sneaking inside your system again. Typically, such programs may be bundled in different free software packages. That’s why it’s really important to check the setup of every new application that you want to install and to manually configure the installation process. This will help you opt out of any additionally bundled components that may get installed in the system by default and will eliminate the need to remove them later.


Type  Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  You may detect unauthorized changes in the browser’s homepage or search engine settings and a stream of unstoppable ads.
Distribution Method Software bundling, free download links, shareware sites, freeware platforms, torrents, spam messages.
Detection Tool

Not Available

Remove Virus

To try and remove 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 extension (as well as any other unfamiliar ones).
  4. Remove by clicking on the Thrash Bin icon next to its name.
  5. Confirm and get rid of and any other suspicious items.

If this does not work as described please follow our more detailed 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:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result
LulachuAVG AV

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.


Lulachu  Remove from Internet Explorer:

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


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

Lulachu Remove from Firefox:

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


Find the adware/malware —> Remove.
LulachuRemove 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!


About the author


Lidia Howler

Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.

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