Malware and Ext. Hard

Yes, both are downloadable via the Links supplied in my earlier post. If using another Apple Computer ( like the one used to post your above Reply ) you can download either of the two to that Apple Computer. The download should take a very sort time and be placed in the Downloads Folder in the Dock. Attach a reliable USB Thumb Drive and Drag and drop the File onto the Thumb Drive. Take the USB Drive and attach to affected computer while it is off. Now the instruction are to Startup the computer and Immediately hold the SHIFT key. The computer will perform differently. The details are it will perform a Repair Disk, clear cache files and Only Load Apple Software. This should disable the Malware from loading ( NOT REMOVE IT ) it is still there. Now, the File on the USB Drive needs to be Drag and Drop on to your Desktop. Double Click the file and choose to Install / move to Applications folder Once installed, go to Applications Folder and look for the application by name. Click its name to Launch it and allow it to perform its work. If all goes to plan - it will detect the Malware and offer to Remove it and ask permission - click Yes. Done. Now Restart the computer and test

Malware download possible bundled within another recent download form a Third Party Site.

Malwarebytes or Etrecheck are both free and Trusted to remove it