12 Replies Latest reply: Jun 29, 2012 11:15 PM by redoo-pl
wolfclan Level 1 Level 1

What software is recommended to clean malware off an imac?


iMac (27-inch Mid 2011)
Solved by Klaus1 on Jun 28, 2012 1:56 AM Solved

You will find this User Tip on Viruses, Trojan Detection and Removal, as well as general Internet Security and Privacy, useful:

 

https://discussions.apple.com/docs/DOC-2435

 

 

The User Tip (which you are welcome to print out and retain for future reference) seeks to offer guidance on the main security threats and how to avoid them.

Reply by Klaus1 on Jun 28, 2012 8:45 AM Helpful

Bear in mind that from April to December 2011 there were only 58 attempted security threats to the Mac - a mere fraction compared to Windows malware:

 

http://www.f-secure.com/weblog/archives/00002300.html

 

Why not read the user tips linked to in this thread by me and Thomas instead of repeatedly asking the same question?

Reply by thomas_r. on Jun 28, 2012 9:00 AM Helpful

Bear in mind that from April to December 2011 there were only 58 attempted security threats to the Mac

 

Note that F-Secure is counting individual variants separately with that number, which is why it's so much higher than my number.  By my count, there were 5 individual malware programs that appeared during that timeframe, but some, at least, came in many different variants.  For example, I consider all MacDefender variants to be the same malware, because they all behaved the same way and were made by the same hackers.  However, due to frequent name changes (MacSecurity, MacProtector, MacGuard and MacShield) and other changes to the code and packaging - which were meant to sneak the malware past anti-virus software, and which were highly effective at doing so - there were many different variants of MacDefender.

All replies

  • John Galt Level 8 Level 8

    No third party software is recommended, since known malware is already disabled or removed by keeping your OS updated with Software Update, and unknown OS X malware cannot be safely eradicated without first knowing what it is.

     

    Lots of "cleaner" apps exist that have been known to cause problems by erasing required OS components.

     

    What malware do you suspect is installed?

  • Klaus1 Level 8 Level 8

    You will find this User Tip on Viruses, Trojan Detection and Removal, as well as general Internet Security and Privacy, useful:

     

    https://discussions.apple.com/docs/DOC-2435

     

     

    The User Tip (which you are welcome to print out and retain for future reference) seeks to offer guidance on the main security threats and how to avoid them.

  • fced Level 1 Level 1

    There is flashback trojan, it's the only one...

    Have a look on http://www.macupdate.com/

    Get flashback remover, or if like me you want to try an antivirus, try bit defender, it's free...

    Ced

  • thomas_r. Level 7 Level 7
    expertise.applewatch
    Apple Watch

    What software is recommended to clean malware off an imac?

     

    Why do you ask?  If you believe you are infected, most of the time that is a false belief.  Very few problems people have with a Mac are actually caused by malware.  If you can clarify, we can help you solve the problem, whether it's malware or not.

     

    For more information about malware, see my Mac Malware Guide.  If you want anti-virus software after reading that, either ClamXav or Sophos are good, free choices.

  • thomas_r. Level 7 Level 7
    expertise.applewatch
    Apple Watch

    There is flashback trojan, it's the only one...

     

    That's not even remotely true.  I know of 27 distinct threats that have targeted Mac OS X (not counting separate variants of the same malware), some of which may still be out there somewhere.

     

    try bit defender, it's free...

     

    Other things are free, and they're better.  BitDefender missed detecting a significant fraction of my malware collection in my testing.

  • fced Level 1 Level 1

    Good to know...

  • Klaus1 Level 8 Level 8

    Bear in mind that from April to December 2011 there were only 58 attempted security threats to the Mac - a mere fraction compared to Windows malware:

     

    http://www.f-secure.com/weblog/archives/00002300.html

     

    Why not read the user tips linked to in this thread by me and Thomas instead of repeatedly asking the same question?

  • thomas_r. Level 7 Level 7
    expertise.applewatch
    Apple Watch

    Bear in mind that from April to December 2011 there were only 58 attempted security threats to the Mac

     

    Note that F-Secure is counting individual variants separately with that number, which is why it's so much higher than my number.  By my count, there were 5 individual malware programs that appeared during that timeframe, but some, at least, came in many different variants.  For example, I consider all MacDefender variants to be the same malware, because they all behaved the same way and were made by the same hackers.  However, due to frequent name changes (MacSecurity, MacProtector, MacGuard and MacShield) and other changes to the code and packaging - which were meant to sneak the malware past anti-virus software, and which were highly effective at doing so - there were many different variants of MacDefender.

  • wolfclan Level 1 Level 1

    Thanks for the responses. Very helpful. It's been suggested that I had an email spoof and to try ESET as an anti-virus program.  I tried ClamXav but it did not detect any viruses. 

  • thomas_r. Level 7 Level 7
    expertise.applewatch
    Apple Watch

    I'm not sure what you mean by "an e-mail spoof," but one of the possibilities here will probably apply:

     

    Someone is sending messages from my e-mail address!

  • MadMacs0 Level 5 Level 5

    fced wrote:

     

    Have a look on http://www.macupdate.com/

    Get flashback remover

    None of that is necessary with OS X 10.7.4. Flashback removal, if present, is performed during the standard Software Update process.

  • redoo-pl Level 1 Level 1

    I also use BitDefender so is the best.