These steps will cover the download, install, and registration of MalwareBytes on the Mac. Some steps are optional depending on the version of the system software you’re currently running.
Step 1) Open Safari and go to www.malwarebytes.com
Step 2) Click the Free Download link on the page
Step 3) Click the Allow on the dialog box (Skip this step on older systems or ones this dialog does not show up on)
Step 4) Look in the upper right and click the Download icon, then double click to open the Malwarebytes pkg file.
Step 5) Click continue several times on the install window that appears.
Step 6) Click Agree
Step 7) Click Continue
Step 8 ) Click Close
Step 9) Click Move to Trash
Step 10) Click Get Started
Step 11) Click for Personal Computer
Step 12) Click Activate license
Step 13) Check your email for an Activation/License Key from MalwareBytes or from email@example.com or firstname.lastname@example.org – Enter the Activation/License Key in the field and press Activate.
Step 14) Click Allow to give permission
Step 15) Click Open Security Preferences on the dialog box that appears
Step 16) Click the lock in the bottom left on the Security & Privacy System Preference window that came up
Step 17) Enter your computer’s username and password. If the username appears blank, try entering PSI Admin or your own name with Admin at the end
Step 18) Click Allow on the right side of the window
Step 19) Click the Privacy tab near the top of the window
Step 20) Scroll down the page a bit and look for Full Disk Access — click on it when you find it. On the right side look for “Malwarebytes Protection” and check the box to the left of it.
Step 21) Optionally, look in the upper right of your screen and click “Don’t Allow” on the Malwarebytes Agent Notifications window.
Step 22) Look on your dock for the blue MalwareBytes icon and click it to open the software
Step 23) Click “Scan” at the bottom of the window and see if anything bad is found — if it is clean it up and let David Rutan or Ralf email@example.com know. Consider taking a photograph with your phone or a screenshot with the computer and sending a picture of what MalwareBytes found as well.