Removal Guide

Remove From Chrome/Firefox

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. 

Download SpyHunter Anti-Malware

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy. is a hijacker virus that changes your search preferences to the mentioned websites. Removing can take anywhere from 10 to 30 minutes, but be careful to follow the instructions closely.

contextualyield hijack1

Browser hijacker viruses like are believed to be the least dangerous types of viruses, but that doesn’t mean that you should ignore or underestimate them. The Ads they create can serve as a backdoor entrance for many other viruses – even nasty customers like Ransomware or Trojans. The aim of this article is to illustrate the types of danger your are facing while you deal with, as well as the most likely method this thing used to get into your computer. Armed with this knowledge you’ll hopefully be able to keep better vigil over the safety of your computer in the future.

Do not click on the Ads – nothing good will ever come out of those

Ads generated by can get very annoying over time, but fortunately they will directly endanger your computer. The real threat lurks behind the surface – so in the case of these Ads it is the fake sites the hyperlinks lead to, as well as the possibility to download and install a virus on your computer. Both of these dangers are very real.

The sites you may be led to might look real. They are not. Sometimes they might look exactly like the real site they copy – but the url will not be the same – it will have maybe a letter or two difference. If you ever make the mistake of paying money to such a fraudulent site you’ll quickly discover you will get nothing for your money… if you are lucky. The alternative is an infected program file that will install a new virus, which will try to run another money grabbing scheme. The same thing applies to any program or file you might be offered for free by the Ads.

A few different schemes and tricks used by viruses to spread themselves

One possibility to getting infected by is through another browser hijacker virus (possibly a more subtle one) that is already installed on your computer, as described above. Usually you’ll get some program that will scan your computer and claim there is some sort of problem found – be it malwares, registry errors of missing drivers and plug-ins. Then you’ll be asked to pay for the “full” product before it can clean them.

Another variant of such a scam is to offer you a free program. The installer of that program will be nothing else but a virus.

There are also the infected files you can mistakenly download from a fake torrent/online storage site. The name will match the thing you want, the file extension will be .exe and a nasty surprise will lurk inside.

There’s also the program bundle trick. These are program installers that install more then one program on launch. Usually the extra programs will be demos or otherwise promotional material, but in some cases you might also be dealing with browser hijacker. For this reason we recommend skipping default installation on all programs and go advanced. This way you can block all extras you don’t need to make sure you are not installing a batch of browser hijacker.



Our first step here is a reboot in Windows Safe Mode. If you already know how to do it, just skip this and proceed to Step 2. If you do not know how to do it, continue reading:

For Windows 98, XP, Millenium and 7 Users:

Restart your computer. To be sure you don’t miss the window of time when you need to press it, just spam F8 as soon as the PC starts booting. In the new menu, choose Safe Mode With Networking.


Proceed to Step 2.

For Windows 8 and Windows 8.1 Users:

 Press the Windows Key and R at the same time. Select the Boot tab in the new window that appears.


Then check the Safe Boot option and click OK.  Click  Restart in the new pop-up.

system- config

Proceed to Step 2.

For OS X Users:

When you Mac is turned off, press the Power Button. After you hear the Startup Sound, immediately press and hold the Shift key until the Apple logo appears.

Proceed to Step 2.


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. has infected ALL of your browsers. Apply the steps separately for each one.

ie9-10_512x512  For Internet Explorer Users:

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

pic 3

Find . Disable it.

If your Home Page is different from the usual, click IE GEAR —–> Internet Options>edit the URL box with your preferred search engine, and click Apply.

firefox-512  For Mozilla Firefox Users:

Open Firefoxclick on mozilla menu (top right) ——-> Add-ons.

pic 5.

Hit Extensions next.

contextual yield mozilla  should be somewhere around here –  Remove it. It may be hiding under another name, so look carefully.

Next, type about:config on the web page address bar. A message will tell you that you need to be careful. Agree and say OK. Directly below the address bar, there is a search bar. Type in it Any entries that Mozilla finds with the term need to be reset to their defaults by right clicking and choosing the Reset option.

about config removal

chrome-logo-transparent-background For Google Chrome Users

 Start Chrome, click chrome menu icon —–>More Tools —–> Extensions.


pic 7

In  Extensions,  find the virus and  select  chrome-trash-icon.

contextualyield chrome

 Click chrome menu icon   again, and proceed to Settings —> Search (the fourth tab), select Manage Search Engines.  Remove anything but the search engines you normally use.

pic 9

safari For Safari Users:

Open Safari, and click Safari —–>Preferences —–> Extensions—–>Uninstall the malware.


(Works for Windows XP, Windows 7, Windows 8, Windows 8.1)

Hold windows-buttonand R together. Write appwiz.cpl  in the new field, then click OK.


You are now in the Control Panel. Search around for and anything else suspicious-looking.   Uninstall  it/them. Also, be extremely careful. Viruses often spend one last ditch effort to trick you into installing more of their kind (there are many viruses that do this, like Wander Burst Ads ). If you see a screen like this when you click Uninstallchoose NO:



This is perhaps the most important and difficult step, so be extremely careful. Open the Task Manager by right clicking on the Taskbar and choosing Start Task Manager.


Once it opens, choose the Processes Tab. Look at all of the processes in front of you and try to determine which ones are a virus. Google them or ask us in the comments and we will provide the best assistance we can. If the virus returns later on after you supposedly removed it, the reason is that you missed something here.


Right click on each of the virus processes separately and select Open File Location. Also, End the process after you open the folder. Just to make sure we don’t delete any programs you mistakenly took for a virus, copy the folders somewhere, then delete the directories you were sent to.

STEP 5: 

You should do the following for ALL browsers you have installed. Browser hijackers infect everything while in your system. You need to manually get rid of it from each shortcut. You should do the following:

Right click on the browser’s shortcut, then click Properties.

Alternatively, if you have your browser pinned down to the taskbar, you Right click it, then Right Click again on the Small Browser Icon —–> Properties

NOTE: Below, we are showing Google Chrome, but the method is the same for all browsers.


Once you’ve reached Properties —–> Shortcut (on the band at the top), then in the Target type field, you should REMOVE EVERYTHING AFTER .exe”


Now click on the Menu icon on top, and go to Settings. In Settings, find the Search section (the fourth one from top), then click Manage Search Engines. In there you should remove any search sites you do not use.

google chrome settings


We’ve had reports that this virus can come back after you uninstall it. This usually takes place on system boot. If this happens, do the following:

Type Regedit in the windows search field and press Enter.

Once inside, press CTRL and F together and type the virus’s Name. Right click and delete any entries you find with a similar name. Alternatively, if you can’t find any this way, look in these directories, and delete the registries manually:

  • HKEY_CURRENT_USER—-Software—–Random numbers
    HKEY_CURRENT_USER—-Software—Microsoft—Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft— Internet Explorer—-Main—- Random


STEP 7 – Optimization

And that’s it. Well done for removing We’ve prepared a short and sweet optimization guide, specifically designed for users who just removed a virus. It is completely free, you do not need to download anything, and it’s not very time consuming. If you are interested, you can check it out here.




Leave a Comment