You installed a fake "utility" called "Advanced Mac Cleaner." Like any software that purports to automatically "clean up" or "speed up" a Mac, it's a scam. To remove it, take the steps below. Some of the files listed may be absent. Back up all data before proceeding.
If you paid for the software with a credit card, consider reporting the charge to the bank as fraudulent.
Step 1
Triple-click anywhere in the line below on this page to select it:
~/Library/LaunchAgents/com.pcv.hlpramc.plist
Right-click or control-click the highlighted line and select
Services ▹ Reveal in Finder (or just Reveal)
from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. Log out or restart the computer.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You may not see what you pasted because a line break is included. Press return.
Step 2
Move the following item to the Trash as in Step 1:
/Library/Application Support/amc
This time you may be prompted for your administrator login password. There's no need to log out after taking this step.
Step 3
Move this item to the Trash:
~/Library/AdvancedMacCleaner
Step 4
Open the Applications folder and move an item named "Advanced Mac Cleaner" (if it's present) to the Trash. Empty the Trash.
