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What is Mackeeper

I run an  mid 2011 iMac using 10.12.6. An official looking page with the Apple logo pops up and tells me 4 viruses have been detected from opening a number of adult web site and that I should download "MacKeeper" to remove these viruses.

When I closed the page without downloading, there was an horrendous screech.

Hand on heart, I've never looked for or opened **** and my local Apple techs warned me against "MacKeeper" many years ago.

How do I find out if I actually have any viruses and how do I stop this irritating pop up from annoying me again?

MacKeeper is certainly not a good program, so you were correct in staying far away.  here are some resources that will help you prevent pop ups and check for malware.

Stop pop-up ads in Safari - Apple Support

macOS Sierra: What is malware?

macOS Sierra: Protect your Mac from malware

Clear all of your browser website data, cookies, and history.

Then start your Mac in Safe Mode by holding down the Shift key while turning it on.

You should be all set.

Cheers,

GB

Elisabeth,

Your "local Apple techs" are wise. "Stay away from MacKeeper, as if it were a swarm of bees!"

Read: Phony "tech support" / "ransomware" popups and web pages for great user advice from John Galt

Thank you.  You've put my mind at rest

I'll try. Thanks very much.

MacKeeper is Junkware. Stay AWAY from it.

Junkware is software that does little to nothing to improve anything it's installed on and may actually include hidden malware, backdoors, adware, etc.. MacKeeper actually makes every computer it's installed on run horribly. Read this article: https://www.imore.com/avoid-mackeeper

If you're looking for a great security application for your Mac computer(s), that's always scanning in the background to find and isolate/remove malware, get Intego's Mac Internet Security X9, or a bundle if you think you need it. I've been using their Virus Barrier (the old name for their Internet Security app) for around 15 years now, with updates checked for and downloaded/installed weekly. It's actually saved our computers from being infected with malware many times. The newsletters Intego emails once a month, if you want them, are very informative too.

I also recommend Malwarebytes Anti-Malware program, but you have to launch it on your own, where as Intego's program I have set to be always on in the background. I probably use it once a month.

It sounds like you have some adware on your mac that's redirecting your browser to the MacKeeper ads.

Of course, don't download that, but you may still need to take steps to get rid of the adware.

If the problem persists, triple-click the line of code below*, then copy and paste into the Terminal.app. Copy and paste the output here so that we can see what background processes are running:

w=`id -un`;ls -alF /Lib*/Launch*/ ~/Lib*/Launch*/ | sed "s@$w@[redacted]@g"

*The code will remove your user name from the output for privacy reasons.

Unless you are an experienced user, I do not recommend that you mess with any Terminal commands. Safe Mode, clearing your website data, cookies, history, and having Malwarebytes for Mac installed so you can run it when you feel you might need to is all you need: Malwarebytes | Malwarebytes for Mac

Best of luck,

GB

Avoid viewing the sites that could harm the system .

Read the article : OS X El Capitan: What is malware?

If a message tells you that something you downloaded from the Internet is “malware,” the safest action is to put the item in the Trash, then empty the Trash.

Malware is “malicious software,” which includes viruses, worms, trojan horses, and other programs that can harm your Mac or your privacy. Malware can be installed when you download items from email, messages, and websites.

Some malware is simply annoying. More often, its intent is to control your Mac to collect personal and financial information, host illegal content, send spam, or harm other computers on the network.

Avoid opening items from websites and email messages unless you are certain that they come from a legitimate, trusted source. If you are uncertain about the source, delete the item. You can always download it again later, after you make sure it isn’t malware.

And as per this article : OS X El Capitan: Protect your Mac from malware

In addition to apps, other types of files may not be safe. Scripts, web archives, and Java archives have the potential to cause harm to your system. Of course, not all files like this are unsafe, but you should exercise caution when opening any such downloaded file.

Let's not fear monger here, shall we.

One way of getting that experience is to follow directions of someone who is experienced.

The Terminal command I posted is transparent; anyone here with that experience can see exactly what it does and vouch that its safe.

Downloading an app from the internet which requires the user to give their admin password before it will work is exactly the kind of behaviour we should be steering less experienced users away from - it's exactly how all these problems start to begin with.

Although your solution may be simple from your perspective, my point is that the OP probably doesn't even know where to find the terminal application. It is an extreme solution - very "windows". (by "extreme" I only mean "try aftrer you've tried all the easy stuff").

Clearing the browser info and starting the Mac in Safe Mode will easily fix the issue, so why make it more "technical" than it needs to be. Just sayin....

GB

My understanding is MacKeeper can now be removed entirely with Etrecheck which happens to be often cited on these forums as a safe and powerful diagnostic reporting tool; noted for it's ability to provide the volunteers with insights as to what is causing problems on a users systems. It is also an indispensable tool to detect and remove malware and adware.

I'm sorry, I don't mean this as an insult, but you're literally speaking from ignorance.

Safe mode, cache clearing and other "voodoo" you mention has absolutely nothing to do with either adware or MacKeeper. I first wrote about removing MacKeeper in 2011, see:

https://applehelpwriter.com/2011/09/21/how-to-uninstall-mackeeper-malware/

I've been removing adware, keyloggers and other junk from users' machines for almost as long.

We all have our specialities around here, and your input is no less valuable than mine or anyone else's on these forums, but do stick to things that you actually know about.

Sure MalwareBytes is a good recommend, but telling someone to download an app that will ask for admin privs and install a persistent root level helper is no way to educate users, and is far less "simple" than a quick copy and paste into Terminal.

OTH, getting someone to copy and paste a safe command and publicly share the results is a good way for both the user (and maybe some other people around here...) to both see what's going on, understand what's going on, and solve the problem.

Hello JimmyCMPIT,

No, EtreCheck will not remove MacKeeper. I think you may have seen a couple of instances where people manually removed the MacKeeper app. Then they ran EtreCheck and it reported the leftover launchd script and allowed them to easily remove it. Cleaning up these partial uninstallations has proven to be a very popular feature. It is common for Mac software to not include any kind of uninstaller. I got tired of repeating the same old spiel about properly uninstalling Mac software and just put a "clean up" button in EtreCheck.

As for MacKeeper itself, that is a different question. Just the other day I did a little experiment to see if I could organically find some of the adware that is plaguing people. It was very difficult to find anything other than MacKeeper. That being said, technically MacKeeper is not adware. It also has a valid Apple developer ID. It is definitely something that the fake Flash players will install. But I don't know if it is MacKeeper that is directing this or if MacKeeper is just paying its affiliates for each installation, giving them strong incentive to push it and get it installed by any means necessary.

MacKeeper's massive advertising footprint makes it a major issue that people talk about. They advertise more than anyone else except for maybe Google Chrome. That makes it a huge target for people to rail against. But pound for pound, there is a lot of true adware, malware, and scams that are far worse than MacKeeper.

最后更新：2017-09-30 11:33:06

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