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Help Virus has my Macbook in Limbo. How can I fix? What is it?

633 Views 6 Replies Latest reply: Nov 11, 2012 3:55 AM by thomas_r. RSS
rm2project Calculating status...
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Nov 10, 2012 3:09 PM

Macbook running OSX Lion 10.7.5

seems like some virus has taken over.

It started with spotty internet connection 2 weeks ago then finally this week, It no longer allows me to go online.

Shows that I am connected and visable through my network but can't get online.

It has killed all my antivirus software and any other software added to resolve the issue.

Had MacKeeper and VirusBarrier on it before bug and tried to add BitDefender, F-Secure and AVG Linkscan after infection.

Not sure what to do now?

anyone have any ideas what it is?

 

I tried all the DNSCHANGER and FLASHBACK MALWARE detection tools in case it was that but it doesnt show up.

I tried to manually delete using F-Secure Flashback malware removal instructions but they all came up false.

 

This bug has disabled all the antivirus software and makes it usless.

I can get online on Safe Mode but not if I boot up normally.

Even in Safe Mode all the antivirus software is usless.

In F-Secure software the Virus actually made all the text into Jiberish.

MacKeeper and Bitdefender can not scan nor update properly

Errors all over the place for all of the antivirus software I try.

 

I already reset Safari which is the browser we use on the macbook.

Spent 2 hours with MacKeeper but they had no solution.

MacBook, Mac OS X (10.7.5)
  • MadMacs0 Level 4 Level 4 (3,320 points)

    rm2project wrote:

     

    Macbook running OSX Lion 10.7.5

    seems like some virus has taken over.

    It started with spotty internet connection 2 weeks ago then finally this week, It no longer allows me to go online.

    Shows that I am connected and visable through my network but can't get online.

    It has killed all my antivirus software and any other software added to resolve the issue.

    Had MacKeeper and VirusBarrier on it before bug and tried to add BitDefender, F-Secure and AVG Linkscan after infection.

    Not sure what to do now?

    anyone have any ideas what it is?

    Yes, it's pretty clear to me that all that A-V software you have installed is the problem. It's never a good idea to have more than one real-time scanner on your computer as they will fight each other over new files and can easily be causing all of your connectivity problems.

     

    Although there have been improvements in MacKeeper over the last year or so, I would still say that's your prime suspect, based on the experiences posted in the forums by other users. I would certainly start with that.

     

    If your OS is fully up-to-date then it will protect you against infection by all currently known malware that can impact it.

    I tried all the DNSCHANGER and FLASHBACK MALWARE detection tools in case it was that but it doesnt show up.

    I tried to manually delete using F-Secure Flashback malware removal instructions but they all came up false.

    DNSChanger developers are all in jail now and the FBI's operation of their servers ceased a couple of months ago, so if this is new I don't see how it could be that.

     

    Flashback has been declared extinct by at least two A-V labs and their servers haven't been operational for months. They are required for both installation and operation of the backdoor/trojan. I would not waste any more time with that, especially the manual instructions which were all superceded, first by the F-Secure removal tool and then Apple's, which is all I recommend now.

     

    Bottom line, remove all your A-V software in accordance with the developers instructions and then come back if you are still having issues.

  • Dale Weisshaar Level 6 Level 6 (15,855 points)

    How to uninstall MacKeeper......can't emphasize how important this is!!!

     

    DALE

  • Dale Weisshaar Level 6 Level 6 (15,855 points)

    After you get all that unneeded AV software off....it's not a windows PC that is prone to such things...do some basic repairs. Maybe it'll straighten some things up.

    Try using Disk Utility to do a Disk Repair, as shown in this link, while booted up on your install disk for OS 10.6.8 and under. If you are running 10.7 or 10.8 run Disk Repair from Disk Utility on your Recovery System. It shows you how in the link.

    You could have some directory corruption. Let us know what errors Disk Repair reports and if DU was able to repair them. This could just be a start in repairs and you may need a better utility to finish the job.

    Then Repair Permissions.

    No need to report any Permissions errors........we all get them.

       DALE

    Mac OS X (10.7.5), MacPro '07 MacBookPro Late '08G4
  • stevejobsfan0123 Level 7 Level 7 (30,500 points)

    Likely one of the problems MacKeeper causes. AV software for Mac usually decreases performance, with a few exceptions, and MacKeeper is regarded as the worst.

  • etresoft Level 7 Level 7 (23,905 points)

    rm2project wrote:

     

    Had MacKeeper and VirusBarrier on it before bug and tried to add BitDefender, F-Secure and AVG Linkscan after infection.

    Not sure what to do now?

    Remove all of that stuff. If you really want to install antivirus, you can use ClamXav or Sophos. But for now, get your machine cleaned up and running properly.

     

    Make sure to use the vendor-provided uninstallers for each program. I wrote a little diagnostic program to help show what funky 3rd party system additions are installed. After you have uninstalled all of that junk, download EtreCheck from http://www.etresoft.com/download/EtreCheck.zip, run it, and paste the results here.

     

     

    Disclaimer: Although EtreCheck is free, there are other links on my site that could give me some form of compensation, financial or otherwise.

  • thomas_r. Level 7 Level 7 (26,950 points)

    I've got to agree with everyone else. That's just too many anti-virus programs, and none of them are one that I would recommend installing. MacKeeper, in particular, is toxic... follow Dale's link to get rid of it. Use whatever uninstaller is provided by all the others.

     

    When your Mac has problems, malware should probably be the last thing to think of at this point in time. That could always change, but if you read my Mac Malware Guide, you'll be better prepared to protect yourself. If you decide to continue to use anti-virus software, be sure to pay close attention to the limitations of anti-virus software that are discussed in my guide, and only use one of the ones it recommends (ClamXav or Sophos).

     

    As to the internet issues, if uninstalling all that anti-virus software doesn't help, try restarting in safe mode and see if that fixes the problem. If it does, and restarting normally causes the problem to come back, you have some third-party software that is causing the problem. If that doesn't help, try creating a new user account in System Preferences -> Users & Groups. Log out, then log in to that account and try the network. If you can access it then, it's a problem with something to do with your user account. If none of that works, try another network to see if you have problems there. Go to a library or coffee shop or somewhere else with free wifi. If you have no problems there, the problem is with your network.

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