Untuk blok virus conficker melalui mikrotik dapat menggunakan script berikut ini. Buka Terminal di mikrotik terllebih dahulu. Lalu copy script di bawah ini.
/ip firewall mangle
add chain=prerouting protocol=udp dst-port=445 action=mark-connection new-connection-mark=conn-conficker comment=”445-UDP” disabled=no passthrough=yes
add chain=prerouting protocol=tcp dst-port=445 action=mark-connection new-connection-mark=conn-conficker comment=”445-TCP” disabled=no passthrough=yes
add chain=prerouting protocol=tcp dst-port= 135,137,138,139 action=mark-connection new-connection-mark=conn-conficker comment=”135,137,138,139-TCP” disabled=no passthrough=yes
add chain=prerouting protocol=udp dst-port=135,137,138,139 action=mark-connection new-connection-mark=conn-conficker comment=”135,137,138,139-UDP” disabled=no passthrough=yes
add chain=prerouting connection-mark=conn-conficker action=mark-packet new-packet-mark=conficker-pkt passthrough=no comment=”conficker-pkt” disabled=no
/ip firewall filter
add chain=forward packet-mark=conficker-pkt action=drop comment=”drop conficker” disabled=no