What to look for.
WHAT VISITORS MIGHT SEE
Redirects to another site Pages you did not create Adverts or links you did not add A browser warning that the site is harmful
WHAT YOU MIGHT NOTICE
Files you did not create Administrator accounts you did not add Changes to files you did not make Your site slow for no reason Unusual resource use
WHAT OTHERS MIGHT TELL YOU
Your site appears in search with unrelated content Your email is being rejected A customer received something strange
WHAT YOUR HOST MIGHT TELL YOU
Spam sent from your account A malware scan result Resource abuse
WHAT IS EASY TO MISS
A compromise designed not to be noticed.
Many are. The site works normally while being used for something else.
HOW TO CHECK
Search your domain plus unrelated terms Run a malware scan Review your user list and files
