If the IP address of the scraping host is static, you can use .htaccess
to block this IP, like:
order allow,deny
deny from 111.111.111.111
allow from all
If the IP address is variable, but the user agent is constant, you can use agent blocking:
BrowserMatchNoCase SpammerRobot bad_bot
BrowserMatchNoCase SecurityHoleRobot bad_bot
Order Deny,Allow
Deny from env=bad_bot