To block Website content thieves, Proxy services & Exploited servers, we will use some htaccess rules to block a huge number of IP Addresses and CIDR ranges.
Copy/Paste all htaccess rules from this URL to your main server htaccess : http://pastebin.com/A1jU3kdM
This blacklist will block :
- SoftLayer's Proxy servers list. 
- LiquidWeb Exploited servers. 
- Interbusiness.it and Telecom Italia Net. Content Scrapers and scammers. 
- ThePlanet.com. home of many spammers, hackers and trojan horses. 
- Rackspace - Hackers, spammers, scammers and phishers. 
If you have are using a Firewall, you can block all IP's in the blacklist by adding the CIDR to the deny list of your Firewall program.
Helpful links:
- More details about this blacklist: http://www.wizcrafts.net/exploited-servers-blocklist.html
- Russian Blacklist: http://www.wizcrafts.net/russian-blocklist.html
- CIDR Calculator: https://www.countryipblocks.net/create_network_cidr.php