Is MacKeeper a virus?
No... But it is Crapware that is to be Avoided at all costs.
In General 3rd Party AV Software is Not Required as Mac OS X tends to look after itself.
See Here > Antivirus Discussion
The Safe Mac > http://www.thesafemac.com/mmg/
Also have a look at this Informative Discussion (June 2013 )
It redirects me to MacKeeper. I can access Pinterest, Facebook, Twitter, and Gmail (only if I pull up gmail through my history.) Any time I try to 'google' something, it takes me only to MacKeeper. I can't access google homepage, or search anything online. From any of the above pages, if I try to click on a link from that page, it takes me only to MacKeeper. I've gone through applications, found mackeeper, moved it to my trash, securly emptied my trash, and still this keeps happening. HELP! How do I get my computer back?
Ah, so you already installed it!?
You really really need to uninstall it, but maybe not using their uninstaller.
Klaus1's great post on MacKeeper...
We need to search out zeobit files...
Find Any File...
Hold Option or alt key when selecting Find to Find All.
Find all for Name contains: zeobit to start with.
When you post in several threads on the same topic, and did not originate the thread, you can't tell exactly when someone has posted a suggestion to the issue as described. Where I replied to one you'd posted in, a tiny message noted the topic had branched into a new discussion... but I could not follow the link given.
Here's what I already posted...
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Jan 2, 2014 3:18 PM (in response to DesiNF)
Do you have the mackeeper version prior to 2012 year as described in the uninstall instructions? If so there may also be files in places that would need to be manually removed. A folder in library for mackeeper, for example, esp if mackeeper was installed in a mac with timemachine backup.
But if you have the 2012 or latest version, the uninstall should be fairly straightforward:
For older versions, the second section here where it says older, note TimeMachine:
What mac operating system version and backups do you have? If this was installed and then saved into a backup, there are things to consider before it will be really all gone. The instructions are extensive enough to fill a few pages, so you have to see them in their context & in their pages online. Do you have a different browser than the one you've had issue with? How about a different user account and set up a Firefox, etc web browser?
IF the other issue still remains in which you said you couldn't get a link to these pages to work... And if you put the item from Applications into Trash, and emptied it, does it go away after you restart the computer? The applehelpwriter page has a pile of places to look for bits of this notorious bugware.
Good luck & happy computing!
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PS: So there is another possible answer. Pretend you have not looked into all the Libraries, etc for the bits suggested in the second page link above.