We detected malware on this device

We detected malware on this device

“We detected malware on this device” is categorized as a browser hijacker by security experts. “We detected malware on this device” is known to cause browser redirects and different pop-up advertisements in addition to security vulnerabilities.

We detected malware on this device
The “We detected malware on this device” virus reveals its presence on the system by enforcing some changes in the settings of the default browser

An application named “We detected malware on this device”, has recently been reported to our “How to remove” team by a number of web users. This application operates in a way which causes some significant browsing disturbance according to the affected people. Therefore, in this article, we will try to offer you an effective solution for quick and safe uninstallation of the undesired application. As per the information that we have, “We detected malware on this device” is a piece of software which can be categorized as a Browser hijacker. It reveals its presence on the system by enforcing some changes in the settings of the default browser (be it Safari, Chrome, Firefox or another one). Normally, these changes are related to the installation of a new homepage, toolbar or the replacements of the homepage domain with another one without the users’ approval. “We detected malware on this device” may also be related to an automatic page-redirecting service which lands the web users on different promotional sites, pop-up pages, new tabs and aggressive ads. It is typical for every Browser hijacker to generate various types of advertisements on the users’ screen and to prompt them to click on these ads by placing them in such a way, that they cannot be removed. The purpose of all this behavior is, as you may guess, the promotion of certain products, websites, services, and software tools. But is “We detected malware on this device” similar to a computer virus and does it pose a security threat to your system? This is what we are going to clarify in the next paragraphs. So, stay with us and make use of the information and the removal instructions, which you will find below.

We detected malware on this device for Mac

“We detected malware on this device” for Mac is regarded by experts as a browser-hijacking add-on for Chrome, Safari, and Firefox. Threats like “We detected malware on this device” for Mac are known to cause different problems like changes in the user’s designated homepage and/or default search engine tool.

The Internet is full of different programs and interesting applications but unless you familiarize yourself with their real nature, you can never be sure about their intentions and abilities. After all, threats such as Trojans, Spyware and nasty Ransomware viruses could be lurking everywhere on the Internet. That’s why, being cautious about every new application that starts to operate on your machine is a necessity. Fortunately, “We detected malware on this device” is not a piece of software that you should be overly worried about. If you detect this Browser hijacker on your PC, you most probably won’t face any serious issues such as data theft, file encryption or system corruption.

What is “We detected malware on this device”?

“We detected malware on this device” is a browser-redirecting advertising tool that hijacks popular Mac browsers. Security problems such as “We detected malware on this device” are known to cause website redirects, intrusive advertisements, and even phishing attempts.

However, you may face some rather irritating browsing interruptions, ads, pop-ups and unwanted page-redirects, which may seriously disturb your normal web surfing. Since the main purpose of such applications is to advertise something, they are basically programmed to flood your screen with various ads and sponsored messages and to redirect you to certain websites. By doing so, these applications ensure that you are going to click on the advertised links and pop-ups and that you will visit the promoted web locations. As strange as it may sound, this is a legitimate online advertising method, with the help of which various online-based businesses promote their products and gain revenue from sales, traffic and clicks. Basically, the presence of a browser hijacker like “We detected malware on this device” or Chill Search on the system is typically not fatal and is different from actual malware activity. However, a lot of users complain about the disturbance created by the unstoppable ads and automatic page-redirects that make them interact with all sorts of questionable content. This is actually the main reason why such software is oftentimes regarded as potentially unwanted and why it is usually uninstalled from the computers as soon as users find out about its presence.

We detected malware on this device. Malware can be used to gain access to your personal account information, like your password.

“We detected malware on this device. Malware can be used to gain access to your personal account, like your password.”  is a browser hijacker type of potentially unwanted software. The “We detected malware on this device. Malware can be used to gain access to your personal account, like your password.” is known for the website redirects and pop-up ads it causes but it could potentially lead to even more serious problems.

Since “We detected malware on this device” is not a real virus, this application cannot infect you in a stealthy way or sneak inside your system through an Exploit kit or in some other malicious way. That being said, you should still know that there are many other perfectly legitimate methods via which you may end up with this piece of software on your machine, especially if you are not careful enough. The typical sources of potentially unwanted applications such as Browser hijackers, Adware or similar ad-generating and page-redirecting software are the so-called free software bundles. Usually, such applications are distributed as additional components added inside the main installation package of another program. The settings related to the bundled content can normally be found under the Advanced/Custom menu in the setup manager but since most of the users follow the Automatic/Quick installation steps, they often overlook these options and install the added components by default. Other possible sources of applications like “We detected malware on this device” could be the free download platforms where such applications are distributed and promoted as free and helpful add-ons. They can also be found in torrents, software update requests, free download links, ads, spam and different email attachments. If you want to keep your PC safe and clean, do not forget that hijacker ads and page redirects could also be a potential sources of real security threats such as Ransomware, Trojan horse viruses and more. That’s why, our advice for you is to avoid them and to download and install software only from reputed platforms and well-known developers.


Name“We detected malware on this device”
TypeBrowser Hijacker
Danger LevelMedium (nowhere near threats like Ransomware, but still a security risk)
SymptomsAnnoying homepage or search engine changes may take place in your default browser. 
Distribution MethodVarious sources such as free software bundles, torrents, free download links, ads, spam. 
Detection Tool

Remove “We detected malware on this device” from Mac

For a quick way to remove “We detected malware on this device” try to do this inside your Mac browser:

  1. Open your Mac browser.
  2. Go to Preferences.
  3. Now navigate to the extensions sub-menu.
  4. Look for any unfamiliar entries, including “We detected malware on this device”.
  5. Remove “We detected malware on this device” from your Mac as well as any other suspicious-looking items by clicking on the trash bin icon.

If this does not help then continue reading this article for more detailed instructions on how to get rid of “We detected malware on this device”!


The first thing you need to do is to Quit Safari (if it is opened). If you have trouble closing it normally, you may need to Force Quit Safari:

You can choose the Apple menu and click on Force Quit.

Alternatively, you can simultaneously press (the Command key situated next to the space bar), Option (the key right next to it) and Escape (the key located at the upper left corner of your keyboard).

If you have done it right a dialog box titled Force Quit Applications will open up.

In this new dialog window select Safari, then press the Force Quit button, then confirm with Force Quit again.

Close the dialog box/window.



Start Activity Monitor by opening up Finder, then proceed to activity-monitor

Once there, look at all the processes: if you believe any of them are hijacking your results, or are part of the problem, highlight the process with your mouse, then click the “i” button at the top. This will open up the following box:


Now click on Sample at the bottom:


Do this for all processes you believe are part of the threat, and run any suspicious files in our online virus scanner, then delete the malicious files:

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    The next step is to safely launch Safari again. Press and hold the Shift key while relaunching Safari. This will prevent Safari’s previously opened pages from loading again. Once Safari is opened up, you can release the Shift key.

    On the off chance that you are still having trouble with scripts interrupting the closing of unwanted pages in Safari, you may need to take some additional measures.

    First, Force Quit Safari again.

    Now if you are using a Wi-Fi connection turn it off by selecting Wi-Fi off in you Mac’s Menu. If you are using a cable internet (Ethernet connection), disconnect the Ethernet cable.


    Re-Launch Safari but don’t forget to press and hold the Shift button while doing it, so no previous pages can be opened up. Now, Click on Preferences in the Safari menu,

    Preferences in Safari

    and then again on the Extensions tab,

    extensions in safari

    Select and Uninstall any extensions that you don’t recognize by clicking on the Uninstall button. If you are not sure and don’t want to take any risks you can safely uninstall all extensions, none are required for normal system operation.

    The threat has likely infected all of your browsers. The instructions below need to be applied for all browsers you are using.

    Again select Preferences in the Safari Menu, but this time click on the Privacy tab,
    Privacy in Safari

    Now click on Remove All Website Data, confirm with Remove Now. Keep in mind that after you do this all stored website data will be deleted. You will need to sign-in again for all websites that require any form of authentication.

    Still in the Preferences menu, hit the General tab

    General Tab in Safari

    Check if your Homepage is the one you have selected, if not change it to whatever you prefer.
    Default Home Page

    Select the History menu this time, and click on Clear History. This way you will prevent accidentally opening a problematic web page again.

    firefox-512 How to Remove “We detected malware on this device” From Firefox in OSX:

    Open Firefoxclick on mozilla menu (top right) ——-> Add-onsHit Extensions next.

    pic 6

    The problem should be lurking somewhere around here –  Remove it. Then Refresh Your Firefox Settings.

    chrome-logo-transparent-backgroundHow to Remove “We detected malware on this device” From Chrome in OSX:

     Start Chrome, click chrome menu icon —–>More Tools —–> Extensions. There,  find the malware and  select  chrome-trash-icon.

    pic 8

     Click chrome menu icon again, and proceed to Settings —> Search, the fourth tab, select Manage Search Engines.  Delete everything but the search engines you normally use. After that Reset Your Chrome Settings.

    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


    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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