[KB3569] My Mac is locked by Mac OS X Lockscreen ransomware—what do I do?

• Your Mac is locked by Mac OS X Lockscreen ransomware

I. Start your Mac in Safe Boot mode:

1. Turn off your Mac by clicking the Apple icon → Shut Down. When prompted, click Shut Down. Alternatively, you can press and hold the power button until the computer shuts off.
   

   

   Figure 1-1
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2. Turn on your Mac and hold the Shift key. Release the Shift key when you see the gray Apple logo and wait for the Mac Desktop to appear. Your Mac should be in Safe Boot mode, which disables startup items. Proceed to part II below.

II. Clear the Safari cache:

1. Open Safari  and click Safari → Preferences.
   

   

   Figure 2-1
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2. Click Advanced and select the check box next to Show Develop menu in menu bar.
   

   

   Figure 2-2
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3. The Develop menu will now be available. Click Develop → Empty Caches.
   

   

   Figure 2-3
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4. Restart your computer normally (without holding down the Shift key) by clicking the Apple icon → Restart. When prompted, click Restart. 
   

   

   Figure 2-4
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Need further assistance? Contact ESET Technical Support.