Remove Mac Defender PUP
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Remove Mac Defender PUP

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Note! Your system might be affected by Mac Defender and other threats
Threats such as Mac Defender may be persistent. They tend to re-appear if not fully deleted. A malware removal tool like Combo Cleaner will help you to remove malicious programs, saving you the time and the struggle of tracking down numerous malicious files.
Combo Cleaner’s scanner is free but the paid version is needed to remove the malware threats. Read Combo Cleaner’s EULA and Privacy Policy.

This article will help you to remove Mac Defender totally. Follow the removal instructions for the unwanted software given at the end of this article.

Mac Defender is a potentially unwanted program (PUP). The company is tied to applications which are considered PUPs and is also known to put different advertisements in their products to promote other software they have developed. Adding to that, scare messages might appear trying to trick Mac users into installing other PUPs. If you have Mac Defender installed on your Mac, then know that pop-ups and alert notifications that have no obvious source might be stemming from this software or any other similar applications.

Threat Summary

NameMac Defender
TypePUP/Rogue Application
Short DescriptionMac Defender is a PUP. The application shows various advertisements and scare messages, trying to trick you to install other apps.
SymptomsPop-up boxes, messages, and alerts appear on your Mac machine. You are being lied to that there are viruses on your Mac and that you need to install a removal software within a given time frame.
Distribution MethodFreeware Installers, Suspicious Sites
Detection Tool See If Your System Has Been Affected by Mac Defender

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User ExperienceJoin Our Forum to Discuss Mac Defender.

Mac Defender PUP – Methods of Delivery

The Mac Defender unwanted application is being effectively distributed via freeware installers and bundled packages. You can get your Mac affected by it without even being aware, that the Mac Defender has installed on your machine with a freeware installation or bundled package. In such packages, additional components for installation are not always disclosed properly (or at all), and you can get tricked into installing apps such as Mac Defender. Sometimes this can be avoided if you check the Advanced or Custom option in an installation setup to see the full contents of what you are getting.

Suspicious sites are another source for the distribution of PUPs. Visiting such sites can end you up with a rogue program installed on your Mac. There are websites that advertise the program with pop-ups or banners that are probably their partners or belong to the same cloth of people that spread similar software.

Mac Defender PUP – More Insight

Mac Defender is a potentially unwanted program (PUP) and a previously known rogue anti-virus program. The program presents itself as an anti-malware program, but in fact pushes false positives and fake alerts. In addition, it puts various advertisements inside itself to point to other software which has similar modus operandi. Mac Defender remains a questionable software as it is also known to show such advertising pop-up messages and fake notifications.

From the screenshot posted below, you can see the main installer setup, which you could see if you have downloaded the Mac Defender PUP:

Mac Defender might show a reasonably convincing, but fake variant of the normal OS X dialog message box stating that no suitable app is installed.

The fake message box could link to the official Mac Defender website, which tries to install similar applications to Mac Defender. All these programs may have a valid, Apple-provided developer certificate, thus macOS will install them without prompting any particular warning or notification. The names of the programs might be one of the following:

  • Mac Protector
  • Mac Security
  • Mac Guard
  • Mac Shield

Mac Defender is also known as FakeMacDef for obvious reasons. The following screenshot shows a representation of Mac Defender, which has a screen that claims to have detected issues on your Mac system:

Mac Defender may try to trick many Mac users, using scare tactics, into installing more junk on their machines. If you have illogical behavior on your MacOS, experience slow-downs or have applications installed that you do not know the origin of, consider scanning your Mac with a legitimate security software and see if you can find the cause of all these issues.

Afterward, you can see a redirect link where you are prompted to register your version of Mac Defender, only to find yourself on this landing page displayed down here:

The authors of the rogue application have created the page so you can buy their software. Do not download, install or purchase any programs advertised from this or related applications. Especially, if they claim that your Mac has issues, albeit they cannot fix them unless you install another program or purchase a license.

Remove Mac Defender PUP

If you want to remove the Mac Defender unwanted software from your Mac machine we recommend that you use a specific anti-malware for Mac machines. The main goal of such a program is to scan your machine and terminate the files with malicious behavior and also clean up any malicious code in your repositories. In addition, with a specific anti-malware program, your computer will remain with a better protection and stay healthy performance-wise in the future.

Note! Your computer system may be affected by Mac Defender and other threats.
Scan Your MAC with Combo Cleaner
Combo Cleaner is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as Mac Defender.
Keep in mind, that Combo Cleaner needs to purchased to remove the malware threats. Click on the corresponding links to check Combo Cleaner’s EULA and Privacy Policy.

Manually delete Mac Defender from your Mac

1. Uninstall Mac Defender and remove related files and objects
2. Remove Mac Defender – related extensions from your Mac’s browsers

Automatically remove Mac Defender from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as Mac Defender, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


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Tsetso Mihailov

Tsetso Mihailov

Tsetso Mihailov is a tech-geek and loves everything that is tech-related, while observing the latest news surrounding technologies. He has worked in IT before, as a system administrator and a computer repair technician. Dealing with malware since his teens, he is determined to spread word about the latest threats revolving around computer security.

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