Remove Start4u Browser Hijacker Completely - How to, Technology and PC Security Forum |

Remove Start4u Browser Hijacker Completely


Monsear(.)xyz is the domain and the search engine of Start4u, which is a browser hijacker program. A couple of ways exist for the unwanted program to spread, but bundled software is the most common one. If you have it on your PC, you will notice changes in browser settings, like the homepage, search engine, and new tab. In some cases, redirects and ads might display while browsing. To remove the browser hijacker with its files, you should read the article carefully.

Threat Summary

TypeBrowser Hijacker, PUP
Short DescriptionThe browsers on your computer get their settings changed. Settings such as the homepage, search engine and new tab can be modified.
SymptomsA browser add-on or an extension can be installed on your browsers. The hijacker can redirect you and get information about your searches. You could see third party content or advertisements when browsing.
Distribution MethodFreeware Installations, Bundle Packages
Detection Tool See If Your System Has Been Affected by Start4u


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Start4u.

Start4u – How Does It Spread?

Start4u can be spread by using a few ways. The most general one is with the help third-party installation setups. Bundle packages and setups for free programs could get the hijacker onto your computer system. Freeware installers have additional contents chosen for installation, by default. The unwanted app can enter your PC and tamper with settings before you even notice. To prevent such programs from installing, you should search for a Custom or an Advanced settings menu, from where to deselect components.

Another way the Start4u hijacker can spread is via advertisements, be it pop-ups or banners. Suspicious websites with redirects can also distribute the hijacker. Websites like that might be affiliates of Start4u. Browsers that can be affected are: Google Chrome, Internet Explorer, Safari and Mozilla Firefox.

Start4u – More About It

Monsear(.)xyz is the main web address and the search engine for the browser hijacker called Start4u.


In the above picture you see the Start4u hijacker which consists of just one page. Nevertheless, this page replaces your default search engine, your new tab, and homepage. The page is plain and has a single picture background and a search bar. Nothing else is on the page – no buttons, no text, no links, but from time to time you might see advertisements.

If programs tied to this hijacker are found on your computer, then you will start to see various modifications in your browser applications. Some sidebar or a toolbar could be added as an additional tool in your browsers.

Other applications could be installed on your computer machine, aiding the hijacker program. Extensions redirect you or show you advertisements and thus you can land on various sites. The sites might be partners or affiliates of Start4u.


In the picture shown above, you can see an example of the search results page of Start4u. You can view that it is actually a Google Custom search page.

Start4u and the Monsear(.)xyz web address probably collect data from you as they could be used as filters for each search query you try to make. This search engine may send all collected information to a server, where it may be stored. The data about any browsing habits you have, and personal or technical information, may be gathered. Be very careful about what you search on that page.

The Privacy Policy of Start4u cannot be found on the Monsear(.)xyz domain nor on the search results page. That can mean two things – either there is another hidden page with the privacy policy somewhere, like in a bundled setup or the policy is non-existent. That is a thing to worry about even more than if there was a clear-cut policy – now you do not know what kind of information can be collected about you.

Remove Start4u Efficiently from Your PC

To remove Start4u manually from your computer, follow the step-by-step removal instructions provided below. In case the manual removal does not get rid of the hijacker and all of its files completely, you should search for and remove any leftovers with an advanced anti-malware tool. Such software can keep your computer safe in the future.

Berta Bilbao

Berta is a dedicated malware researcher, dreaming for a more secure cyber space. Her fascination with IT security began a few years ago when a malware locked her out of her own computer.

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