I don't distinguish actually. There are two things I do normally:
- Block Bad Bots. There's a simple text file called `bad_bots.txt`
- Block Bad ASNs. There's a simple text file called `bad_asns.txt`
There's also another for blocking IP(s) and IP-ranges called `bad_ips.txt` but it's often more effective to block an much larger range of IPs (At the ASN level).
To give you an concrete idea, here's some examples:
