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SteveKir Level 3 Level 3 (545 points)

What is the most effective for a stand-alone iMac mid 2011, no Windows involvement.

  • Barry Hemphill Level 8 Level 8 (36,615 points)

    NONE!

     

    There are NO viruses that affect a Mac running OS X - NONE.

     

    Barry

  • d6d24r94 Level 3 Level 3 (610 points)

    Barry - wrong - there ARE known pieces of malware that run on Macs. That said, it is *extremely rare* to get one on your machine unless you're doing something extremely risky.

     

    But it's highly unlikely you'll ever need antimalware for Mac. I don't use one and I've never gotten anything.

     

    If you really feel like you need one, there's a home edition of Sophos for free if you want to check it out:

    http://bit.ly/oMZaMW

  • baltwo Level 9 Level 9 (61,900 points)

    Malware isn't a virus. See Reed's virus guide.

  • Barney-15E Level 8 Level 8 (40,340 points)

    d6d24r94 wrote:

     

    Barry - wrong - there ARE known pieces of malware that run on Macs.

    If Barry is wrong, why did you have to change his words from "virus" to "pieces of malware?"

    Couldn't you have just said, "there ARE known viruses that run on Macs."

  • thomas_r. Level 7 Level 7 (29,780 points)

    If Barry is wrong, why did you have to change his words from "virus" to "pieces of malware?"

     

    That's just semantics.  Important semantics, yes...  a virus is much more dangerous than a trojan.  However, the average user does not understand such semantics and should be given the entire story, not just told "There are no viruses."  Someone who becomes overconfident because "Macs don't get viruses" is going to end up with a trojan because they weren't careful.

     

    Steve, as baltwo said, check out my guide, and then if you're still interested in anti-virus software, get a copy of ClamXav.  That's the only AV software I recommend.

  • Russa Level 4 Level 4 (1,315 points)

    In reply to your question.... Intego Virus Barrier 6 is a good one since it scans for Siganture based viruses/malware as well as anomalies. BTW, Intego is a British company.

  • Barney-15E Level 8 Level 8 (40,340 points)

    Thomas A Reed wrote:

     

    If Barry is wrong, why did you have to change his words from "virus" to "pieces of malware?"

     

    That's just semantics.

    No, it's words. And words mean stuff. They don't mean what you'd like them to mean or what you think others might get confused about. They mean what they mean.

    If you don't know the difference between a Virus and a Trojan, or any other piece of malware, yes, you certainly will download and install something bad because you have chosen to be ignorant.

     

    d6d24r94 knew that there was a difference, otherwise he would not have changed Barry's words. Barry's words meant a specific thing. d6d24r94 had to change those words to change the specific meaning Barry intended.

  • thomas_r. Level 7 Level 7 (29,780 points)

    If you don't know the difference between a Virus and a Trojan, or any other piece of malware, yes, you certainly will download and install something bad because you have chosen to be ignorant.

     

    It's pretty rude to say that someone who doesn't understand the difference between a trojan and a virus has "chosen to be ignorant."  That is a loaded word, and you are criticizing people for not knowing something that they don't know they should know.  If you believe someone needs knowledge, educate them, don't ridicule them.  How do Barry's choice of words help to educate anyone?

  • Barney-15E Level 8 Level 8 (40,340 points)

    Barry's words aren't the problem here. Barry's words are absolutely correct. d6d24r94's words were specifically chosen to call out Barry.

     

    Baltwo already pointed everyone down the correct "learning" path. There was no point in me saying it again.

     

    This thread was pointed down a bunny trail of getting some learning out of it until you jumped in and diverted it. The essential point was made, but you weren't the object of the lesson.

     

    And, no, it doesn't bother me that I chose a "loaded" word. I chose the word on purpose. It wasn't "semantics."

  • SteveKir Level 3 Level 3 (545 points)

    I should have asked for "Anti-Malware" software. My present concern is that it seems fairly certain that I have downloaded the new trojan contained in a claimed download of the Flash player (although I cannot find its file "~/Library/Preferences/Preferences.dylib" on my machine, using Spotlight and EasyFind, or in a Finder window for "~/Library/Preferences/Preferences.dylib".

  • andyBall_uk Level 7 Level 7 (20,495 points)

    Steve

     

    what's certain ?

     

    if clamxav says you don't have it, and easyfind (ignore Finder for this) or Find any File (another good app) cannot locate files with the suspect names - then surely it's likley that you just have a download for a Flash 11 beta, I can't explain why there's no 'where from' showing. Your downloads list, arranged by 'date added' may help with knowing where to look in browser history.

     

    or upload the dmg  to http://virscan.org/

  • Barney-15E Level 8 Level 8 (40,340 points)

    Did you just download it or did you install it? This MacFixIt article has pictures comparing the Trojan installer to the real Flash installer.

  • thomas_r. Level 7 Level 7 (29,780 points)

    I should have asked for "Anti-Malware" software.

     

    Don't worry about it, nobody calls it "Anti-Malware" software.  You called it what everyone, including the vendors of that software, calls it.  There are always folks here who will give you half answers and try to confuse you with pointless arguments about your wording.  You should not apologize.

     

    My present concern is that it seems fairly certain that I have downloaded the new trojan contained in a claimed download of the Flash player (although I cannot find its file "~/Library/Preferences/Preferences.dylib" on my machine, using Spotlight and EasyFind, or in a Finder window for "~/Library/Preferences/Preferences.dylib".

     

    You may have downloaded it, if you saw a page like the one described at Flashback.A seen in action!*, but that does not mean it's installed.  Did you also run the installer and proceed all the way through installation?  If so, you're probably infected.  I'm not sure that ClamXav detects this yet, though hopefully it will soon.  I submitted a copy of this trojan's installer to them earlier this morning.

     

    I'm unclear on how you have looked for the Preferences.dylib file, and whether you have used EasyFind correctly.  Just to make sure, in the Terminal, paste the following command:

     

    ls -al ~/Library/Preferences/*.dylib

     

    If you are infected, you'll see a line listing the malicious file.  If not, you'll see an error saying "No such file or directory."

     

    * Disclaimer: links to my pages may give me compensation, and should not be taken as endorsement of my services by Apple.

  • Csound1 Level 8 Level 8 (40,670 points)

    If you peruse this forum you'll find intego is not well regarded, use ClamAVX, it's the 'least bad' option

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