Process Sign Mac

Process Sign

Process Sign is a potentially unsafe browser add-on that can get installed on most macOS-compatible browsers, including Firefox, Safari, and Chrome. Process Sign, once installed, alters the browser’s homepage, toolbar buttons, and search engine, seeking to use them for ad-generation and automatic page redirects.

Process Sign Mac

The Process Sign virus on Mac

Unlike highly malicious virus threats such as Trojan horses, Spyware, and Ransomware that stay hidden and rarely show symptoms while operating in the system, an unwanted app such as Process Sign would immediately reveal its presence in the computer as soon as it gets installed. Most users first notice the changes in the browser and then begin to experience the sudden and unwelcome generation of aggressive advertisements as well as site redirects to websites that the intrusive software is trying to promote.

Generally, software apps that show this type of behavior are categorized as browser hijackers because they tend to take over the browser and change so that it would be better suited to facilitate the advertising agenda of the browser hijacker. Some users may initially think that the changes made by the hijacker are there to provide them with some useful online tools or to make their browsing sessions safer. The truth, however, is that the main goal of nearly all browser hijackers is to make money from different kinds of paid advertisements and the changes in the browser are introduced with the sole purpose to further push this advertising agenda.

Process Sign for Mac

Process Sign for Mac is a page-redirecting app that installs on Mac browsers and makes unauthorized changes in their settings. Process Sign for Mac isn’t a virus but it will redirect your browser to sites you may not want to visit, potentially compromising your Mac’s safety.

The advisable course of action for anyone who notices that there is a browser hijacker on their Mac is to immediately take action towards uninstalling the undesirable software. This will help keep the computer safe and away from dangers such as Trojan horse infections or file-encrypting Ransomware viruses.

What is Process Sign?

Process Sign is a rogue app that spreads through file bundles and seeks to attach itself to the main browser on your Mac. Once Process Sign enters the computer’s browser, it begins changing it and after that it fills it with adverts and site redirects.

The goal of the people who have created this unwanted software is to earn money from its adverts and site redirects by implementing the Pay-Per-Click and Pay-Per-View gain methods. Those methods are used to directly generate money from user clicks on the displayed ads and visits to the advertised sites.

The ProcessSign app

The ProcessSign app is a browser hijacker for Safari and other Mac browsers that generates money via paid ads. The ProcessSign app starts to display paid advertisements and to redirect the user to the sites of its sponsors as soon as it gets installed.

If you don’t know how to remove this unwanted app, know that we can help you down below, in the removal guide you will see there. Just complete the instructions exactly as they are explained and you should have no difficulty uninstalling this aggressive browser hijacker. 


Name Process Sign
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Changed search engine in the browser, intrusive pop-up ads, random page redirects, and more.
Distribution Method Hijackers can be distributed via software bundles, spam messages, deceitful web ads, and more.
Detection Tool

Not Available

Remove Process Sign Virus from Mac

For a quick way to remove Process Sign 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 Process Sign.
  5. Remove Process Sign 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 Process Sign!

Process Sign Mac

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.

Process Sign Mac


Start Activity Monitor by opening up Finder, then proceed to Process Sign Mac

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:

Process Sign Mac

Now click on Sample at the bottom:

Process Sign Mac

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:

Process Sign Mac
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
Process Sign MacClamAV
Process Sign MacAVG AV
Process Sign MacMaldet

Process Sign Mac

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.

Process Sign Mac

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,

Process Sign Mac

and then again on the Extensions tab,

Process Sign Mac

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.
Process Sign Mac

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,
Process Sign Mac

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

Process Sign Mac

Check if your Homepage is the one you have selected, if not change it to whatever you prefer.
Process Sign Mac

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

Process Sign Mac How to Remove Process Sign From Firefox in OSX:

Open Firefoxclick on Process Sign Mac (top right) ——-> Add-onsHit Extensions next.

Process Sign Mac

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

Process Sign MacHow to Remove Process Sign From Chrome in OSX:

 Start Chrome, click Process Sign Mac —–>More Tools —–> Extensions. There,  find the malware and  select  Process Sign Mac.

Process Sign Mac

 Click Process Sign Mac 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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