Then, use the Go to Folder procedure as above to search for the following files in the Finder: If you find either one, click on them, one at a time, and hit the Force Quit button (it looks like an X in the upper left). You’ll also want to check your Activity Monitor app (in your Utilities folder) for a process called Genieo or InstallMac you can use the Search field to find them.
If you get no result, you’re free of that specific adware file. Type or copy/paste one of the lines below into the resulting Go to Folder field to see if you have the offending file. In the Finder, you’ll need to go to the Go menu and select Go to Folder, or hit Shift-Command-G.
Search for these files and root out any malware. You’ll need to quit Safari or Chrome, then start checking your system for specific files known to be adware. You can do this manually or with a third-party app, as below.