Drop or Blacklisting any source IP when request status is illegal or blocked

Hi all,

Do I have to drop or put to blacklist all requests by "source" IP addresses when they make 5 attacks requests in 5 minutes?

For example:

I have 5 attacks with status (Http protocol compliance field and Access from malicious IP address) from one and the same IP address and i want to drop each next request for the next 2 hours or move it to blacklist IP address.