Blocking Ultrasurf in Mikrotik.

Last update: 03/17/19

/ip firewall address-list
address=13.33.112.47 list=UltraSurfServers
add address=13.33.112.85 list=UltraSurfServers
add address=13.33.112.109 list=UltraSurfServers
add address=13.33.112.110 list=UltraSurfServers
add address=13.33.112.119 list=UltraSurfServers
add address=13.33.112.123 list=UltraSurfServers
add address=13.33.112.147 list=UltraSurfServers
add address=13.33.112.162 list=UltraSurfServers
add address=13.33.112.179 list=UltraSurfServers
add address=13.33.112.217 list=UltraSurfServers
add address=13.33.112.228 list=UltraSurfServers
add address=13.33.112.253 list=UltraSurfServers
add address=13.33.114.191 list=UltraSurfServers
add address=72.21.81.200 list=UltraSurfServers
add address=152.199.4.33 list=UltraSurfServers
add address=172.217.7.37 list=UltraSurfServers comment="GoogleIp"
add address=172.217.15.4 list=UltraSurfServers comment="GoogleIp"
add address=172.217.15.5 list=UltraSurfServers comment="GoogleIp"
add address=216.58.193.5 list=UltraSurfServers comment="GoogleIp"
add address=216.58.193.36 list=UltraSurfServers comment="GoogleIp"
add address=216.58.193.37 list=UltraSurfServers comment="GoogleIp"
add address=216.58.217.4 list=UltraSurfServers comment="GoogleIp"
add address=216.58.217.5 list=UltraSurfServers comment="GoogleIp" disable=yes

In this example the users are connected in the ether2 interface

/ip firewall raw
add chain=prerouting in-interface=ether2 dst-address-list=UltraSurfServers action=drop comment="Block Connection to UltraSurf"

Where I am currently the last ip list responds to gmail.com, in case gmail does not work in your location, disable some that belong to google from the list above.