I understand the whack-a-mole nature of blocking IP's but in this case it is good, actionable intelligence.
DHS is advising the immediate block of the following ip's in response to cyber attacks.
These IPs are attributed to a malicious cyber actor associated with Russia conducting reconnaissance/scanning/attacks within the US.
37.18.24.16
194.190.76.41
213.155.156.184
94.100.180.197
194.190.76.44
151.236.127.145
213.180.204.90