5sercher.biz Virus

Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

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5sercher.biz infects Chrome, Firefox, Edge and other popular web browsers. 5sercher.biz integrates with these browsers and overrides their configurations in order to convert them into online advertising platforms.


The 5sercher.biz virus will display pop up Chrome notifications on your desktop.

What this means is that the program in question will start making changes to the infected browsing program, like for example changing its default search engine and replacing the homepage. The new URLs that have substituted the old ones are usually websites that are in need of more hits/traffic and 5sercher.biz is helping them achieve that by ensuring that you visit them.

The 5sercher.biz Virus

In addition, the 5sercher.biz virus may cause your browser to initiate page redirects to these or other sites – for the exact same purpose. Furthermore, these types of applications are also notorious for installing ad-generating components in the host browser. And as a result, the user’s web browsing experience becomes defined by streams of screen-wide banners, annoying popups, distracting box messages and blinking notifications, etc. Needless to say, all these ads will also take you various sponsored web locations where you will usually be prompted to buy something.

All of this is fairly common advertising activity that is typical for a particular type of software known as browser hijackers. And yes, 5sercher.biz is exactly one such browser hijacker. Its developers, as a rule, profit from the display of the aforementioned advertisements and other such activity. And that’s why all these banners and popups are usually also positioned so aggressively on your screen.

What most users consider highly frustrating about this software, however, is its uninstallation. If you have already attempted to somehow get rid of 5sercher.biz on your own, then you’ve likely discovered just how stubborn a browser hijacker can be. Usually there’s always some residual component left over that allows the program to reinstate itself on the machine and you are once again forced to deal with all of its unwanted effects. Fortunately, it doesn’t have to be that way. And below we’ve put together a removal guide with the help of which you will be able to completely and effectively uninstall 5sercher.biz for good.

What is 5sercher.biz

Although 5sercher.biz is not a virus program and its intentions are by no means malicious, there is a certain association with such programs and actual malware. Namely, it has to do with the risk of being redirected to some site or page that is unsafe and that may expose your computer to harmful threats such as Trojans, ransomware viruses, spyware and more.

This is a fairly convincing reason to not want 5sercher.biz in your system all on its own. And with that in mind, you may also want to minimize your interactions with any of the online ads that you come across while browsing the web.

Furthermore, you can also use this as motivation to prevent such infections in the future. And normally browser hijackers end up on people’s computers form within so-called program bundles. I.e. you most likely downloaded and installed some piece of software without checking for any optional installs. And it just so happens that 5sercher.biz was such an optional install in the setup of that software.



Name 5sercher.biz
Type  Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Large quantities of online ads visible during browsing sessions, changes made to the homepage and search engine, new browser elements and so on. 
Distribution Method Usually included in the setup of other applications (e.g. free system optimization tools) as optional installs.
Detection Tool

Remove 5sercher.biz Virus

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

If this does not work as described please follow our more detailed 5sercher.biz 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).



We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

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: https://howtoremove.guide/online-virus-scanner/

Scan Results

Virus Scanner Result

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.


To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

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:

hosts_opt (1)

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.

ie9-10_512x512  Remove 5sercher.biz from Internet Explorer:

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

pic 3

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

firefox-512 Remove 5sercher.biz from Firefox:

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

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove 5sercher.biz from Chrome:

Close Chrome. Navigate to:

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

Rename the Folder to Backup Default

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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