How to scan your Mac for spyware, malware and tracking cookies

by Ross McKillop on June 15, 2008

Mac Security

One of the benefits of being a Mac user is that generally you don’t have to worry about spyware, malware and viruses quite as much as a Windows user. In fact, until I ran across MacScan, I honestly didn’t even know there was a spyware scanner for OS X. Well it turns out there is - so I gave a run. The following tutorial will guide you through using MacScan to check your Mac for spyware, malware, tracking cookies etc.

To expand a bit on my introduction - first, and most importantly - there are benefits to being an OS X/Mac user. There are benefits to being a Windows user, and benefits to being a Linux user. I’m a firm believer that the “best” operating system is the one that works best for you. That Macs are generally less of a target when it comes to spyware and malware is one of their benefits. So - do you really even need a spyware scanner if you’re using a Mac? I guess that depends on your situation. If your Mac is used in a business production environment, you have incredibly private files, or you just want to rest knowing that your Mac is as secure as you can make it - then sure, it’s worth laying down $29.99 (USD) for MacScan. The big bonus is that there’s an (almost) fully functional demo available, so you can give it a try before you buy. With all of that said - here’s how to check your Mac for potential baddies using MacScan.

  1. Download MacScan, the demo. Installing MacScan is a breeze - you’ll click next a few times, and that’s it. After it’s installed, locate it in your Applications folder. Double-click the MacScan application to launch it.
  2. macscan in your applications folder
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  3. Right away you’ll be asked if you want MacScan to run in authenticated mode. Click Yes.
  4. confirm running macscan in authenticated mode

  5. And enter your password when prompted.
  6. os x password confirmation

  7. If you’re using the demo, now’s the time it’ll remind you of that fact. Note the limitations of demo-mode (no custom scans, no scanning CDs, DVDs or external hard drives). Click Demo to continue.
  8. macscan demo message
    click to enlarge

  9. Finally, the main MacScan interface.
  10. main macscan interface
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  11. Click the Scan button. The screen offering different types of scans will open. Review the info on the Quick Scan page. Essentially, it will scan your home folder, and that’s it. Select the Full Scan tab.
  12. quickscan macscan interface
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  13. As its name indicates, full scan will scan your entire hard drive. And now click Custom Scan. Click the Info button on the top menu.
  14. full scan macscan interface
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  15. Custom scan allows you to specify which folders are scanned. Since we’re using the Demo version of MacScan, this feature is disabled.
  16. custom scan macscan interface
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  17. From here you can review and get some basic info on the various types of spyware that MacScan will detect. Select an item from the drop down list, and its description will appear in the main menu. When you’re done reviewing, click the Prefs button in the upper-right corner of the top menu.
  18. info section of macscan
    click to enlarge

  19. Place a check in the box labeled Detect remote administration programs. Note: this is disabled by default, because there are a number of legitimate applications that MacScan might pick up on and notify you of. You won’t necessarily want to delete or disable these, as they may in fact be running intentionally. Click OK to continue.
  20. macscan prefs
    click to enlarge

  21. Again click the Scan button, and select Full Scan. Click Scan

    Now sit back and wait. And wait. In fact, go grab a coffee, cause this will take a while. My MacBook Pro has 850,000 files (give or take) and it took about 20 minutes for a full scan to complete.

  22. macscan scanning
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  23. In the end, it found 21 tracking cookies. As I mentioned earlier, Macs have a great history of being relatively spyware free (certainly vs. Windows). I’ve downloaded freeware, shareware, software in development etc - from all across the Internet. I’ve jailbroken my iPod Touch using every possible method. And MacScan returned nothing but tracking cookies (which are certainly annoying, but far less harmful than a trojan horse or resource hogging spyware/malware).
  24. macscan results page
    click to enlarge

  25. Select an item from the list, and its description will be displayed in the lower window. Click the Isolate button to remove the items MacScan finds. Note: again - be sure that MacScan didn’t find a legitimate remote administration program - if it did, unselect it before you click Isolate so it’s not accidentally deleted.
  26. items found in a macscan scan
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  27. MacScan will now confirm that you really do in fact want to delete the items it found. Click Yes to do so.
  28. confirm deletion of macscan found items

  29. Now click Done to return to the main menu.
  30. macscan finished scanning
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  31. MacScan provides a nice little report of its history (last time a scan was run, number of items found etc). That’s it - you’re done!
  32. macscan scanning history
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    { 1 trackback }

    Scan for Intruders on Your Mac
    06.20.08 at 5:16 am

    { 2 comments… read them below or add one }

    1 Thomas Murphy 06.16.08 at 12:09 am

    Knowing security is important. Most people are blinded by the word ’security + mac’ your current security program probably is not secure the way it should be.

    2 Alwyn 08.31.08 at 12:49 am

    What I would like to see for Mac is some ‘free’ scanners. Granted MacScan is the only scanner (apparently) for Mac and as such they are in a unique market position, but why do I need to pay for something which I can get free on another OS? The whole “oh its on mac so therefor worth the money” argument is in getting old.

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