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How can I tell if my Mac has a virus

3073 Views 3 Replies Latest reply: Oct 6, 2011 8:01 PM by kimberlyfrombutler RSS
kimberlyfrombutler Calculating status...
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Oct 6, 2011 7:50 PM

I recently opened an attachment to an e-mail that looked like it was from the IRS.  Now I am concerned about it. It was a 30.4 KB attachement.  I printed it out and it was about 10 pages of gibberish.  Top of first page reads:  This program cannot be run in DOS mode. How do I know if I have done something bad. My Mac seems to be running just  perfect.  Thank you

iMac, Mac OS X (10.6.8)
  • Kappy Level 10 Level 10 (221,015 points)
    Currently Being Moderated
    Oct 6, 2011 7:54 PM (in response to kimberlyfrombutler)

    You downloaded a PC app that probably was a virus, but it will not work on your Mac. There are no viruses affecting OS X at this time. In the future resist the temptation to click on anything that comes in an email source you know nothing about. The IRS doesn't send you email nor does your bank or other financial institution of any repute. These emails are all scams.

  • BGreg Level 6 Level 6 (17,500 points)
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    Oct 6, 2011 7:58 PM (in response to kimberlyfrombutler)

    While there are a couple of trojan horses in the wild, that require you to download them, from the sounds of it you tried to open something for the Windows system, since DOS (Disk Operating System) is the basis for Windows.

     

    If you want to check, download the ClamXav antivirus program from http://www.clamxav.com and have it scan your disk. I have used it for years to scan incoming mail and downloads, and recommend for anyone who wants antivirus protection.  While some point out there are no virus's today for macs, which is true, like the stock market, past performance is no guarantee of future performance. Plus, if you snag a windows virus, you can dispose of it and not unknowingly potentially forward it on to your friends.

     

    After a scan, assuming it doesn't find anything, your will feel better.

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