DNS IP blocked due tu Trojan port scaner on server

[GioBRN]

156.154.71.22 was blocked du to Trojan port scaner on DNS server:

IP Address | 156.154.71.22

Port | 137

details:
ISP Vercara, LLC
Usage Type Data Center/Web Hosting/Transit
Domain Name vercara.com
IP address The United States flag 156.154.71.22
Options See your own public address
Address type Public
Protocol version IPv4
Network class Class B
Conversions 2627356438 (decimal / iplong)
9c9a4716 (hex / base 16)
1561547122 (numeric)
Reverse DNS 22.71.154.156.in-addr.arpa