1. what kind of shady apps were you installing? What you describe is against Google ToS and results in a ban from the store. 2. long press on the notification

1. what kind of shady apps were you installing? What you describe is against Google ToS and results in a ban from the store. 2. long press on the notification to see what app sent it, then press to disable any further notifications from that app (or better yet, give it 1-start and uninstall it). sincerely, a windows phone user (edit: my comment is down-voted for stating how Android works??)