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MacKeeper/Zerobit Pop Up ad Problem

Can someone PLEASE tell me how to stop these MacKeeper/Zerobit pops from happening on my computer?

I've never used MacKeeper nor do I plan to ever use it now that this ad keeps popping up unwanted. What happens is I get this Mac "recommends" box that I have to click "Ok" for or completely quit Safari in order to get rid of it. Then there is this stupid ad for MacKeeper sitting there. I can seem to find anyway to get rid of it. Anyone else have this problem? Thanks.

17 inch MBP 2.66 ghz, 15 inch MBP, 21 inch iMac, Mac OS X (10.6.6)

Posted on Mar 17, 2011 3:57 PM

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Posted on Mar 17, 2011 4:15 PM

It's a horrible little application without an uninstall utility ...

Make sure you remove all items on this list:

Applications/MacKeeper.app

In the System Library:
- /Library/Application Support/MacKeeper
- /Library/LaunchDaemons/com.zeobit.MacKeeper.plugin.AntiTheft.daemon
- /Library/LaunchDaemons/com.zeobit.MacKeeper.AntiVirus

In your User Library:
- /Users/yourname/Library/Preference/com.zeobit.MacKeeper.Helper.plist
- /Users/yourname/Library/LaunchAgents/com.zeobit.MacKeeper.Helper
- /Users/yourname/Library/Caches/com.zeobit.MacKeeper
- /Users/yourname/Library/LaunchAgents/com.zeobit.MacKeeper.plugin.Backup.agent
- /Users/yourname/Library/Preferences/com.zeobit.MacKeeper.plist

If you get an error message that an item is in use and can't be moved/deleted open Activity Monitor and find the process and Force Quit then delete it.

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248 replies

Apr 1, 2012 5:37 AM in response to Browknee

My particular issue is with the advertisement. I have never downloaded this piece of garbage, but the poup ad was still bothering me.


Although this technique won't prevent a popup window, it will at least prevent the dreaded mackeeper ad. I felt I may have gone crazy if I heard "On this page you can download MacKeeper" once more.


1. Applications -> Utilities -> Terminal

2. Type sudo nano /etc/hosts

3. Paste these 2 lines at the bottom:


127.0.0.1 zeobit.com

127.0.0.1 mackeeperapp.zeobit.com


4. Hit Control-x, then y, then enter to save

5. Type dscacheutil -flushcache into terminal

6. Restart Safari.

Apr 1, 2012 5:48 AM in response to peterlemer

cmd-W does not close this new MacKeeper window. It is not a popunder, as it popped up infront of my Safari sessions. It looks like a system alert and it can not be dismissed without clicking the OK button to install MacKeeper. The window can not be closed using cmd-W. I have never downloaded or installed MacKeeper, and this thing has paralyzed Safari. The site it appears I got it from is http://out.popads.net. It appears to perhaps be a popout? Is this a new kind of malware/spyware/virus/annoyware? A popout?

Apr 1, 2012 5:53 AM in response to eww

cmd-W does not close this new MacKeeper window, it pops up in front of all your current Safari sessions, and appears exaclty like a system alert. Again, it can not be dismissed by cmd-W. It can only be dismissed without forcing a quit by clicking the OK button int he dialog box to consent to installing MacKeeper. In my book, then, it is neither a popup nor a popunder. It is definitely malware and it is something Apple should have engineered Safari to guard against.

FYI, I have never downloaded or installed MacKeeper. The site it appears I got it from is http://out.popads.net. The page loaded is popOut.php. Is this a new kind of nuisance? A PopOut?

Apr 1, 2012 6:07 AM in response to StephenFarrington

I have confirmed the issue with the technical support of the websites that serve the advertisement. While you are free to contribute to the conversation. I have identified the issue and shown a website to replicate the issue.


It is a popunder created by Zerobit and marketed to websites so they can force ads to those that do not pay subscription fees and have pop up blockers. The ads (pop unders) are not malicious in and if themselves but do place a cookie that tracks your web browsing and reports it back to the site serving the pop under. In my case, it was greenvilleonline.com

Apr 1, 2012 9:26 AM in response to Lexiepex

Lex, if you add those two lines at the end of the file, as stated, then the effect will be to force lookups for those addresses to resolve to "localhost," which essentially disables all communication with those servers (unless contacted via IP address directly). Still, editing the hosts file is not the best idea for solving this problem, as it requires a bit of technical know-how. Novices should not go poking around in there.

Apr 1, 2012 11:16 AM in response to Lexiepex

LexSchellings wrote:


SKHRAM: are you crazy??? never put in those lines into the hosts file: the first line should read

127.0.0.1 localhost

and the second line should not be there at all.

ALARM everybody: DO NOT FOLLOW skhram's advice.


I am most certainly not crazy. As Thomas elaborated on, it's an extremely simple concept. Loopback the site to your localhost, disabling communication with their server.


I don't think your outrage is necessary, espcially since you either don't know what you're talking about, or didn't read the post.

Apr 4, 2012 1:34 AM in response to Browknee

I was having a problem a bit like this with my mums Macbook Pro (laptop).
A window kept on opening and saying that she had won something. It would only let you press continue, no other things. So we tried force quitting then restarting but it opened to the EXACT same page when I had opened safari again.
In the end, I turned off the internet access (in this case, wifi) and then opened safari. I there for could go to my safari preferences and everything along that top bar.

I then clicked 'reset safari...'

It deleted all my safari history, saved passwords, favourited websites etc and then quit safari.
I then opened safari and it went straigh to google (my home page).
And there was no sign of the previous pop-up virus thingo.
I hope this helps someone.
Good luck!

MacKeeper/Zerobit Pop Up ad Problem

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