Cara melakukan Bloking Conficker [ Virus Jaringan] yang biasa mengganggu Jaringan anda, sebagai berikut :
Buka TERMINAL Mikrotik dan masukkan Script dibawah ini :
/ip firewall filter add
action=accept chain=input comment=”default configuration (anti netcut,
defaultnya accept)” disabled=no protocol=icmp
anti confliker
/ ip firewall filter
add chain=forward protocol=udp src-port=135-139 action=drop comment=”;;Block W32.Kido – Conficker” disabled=no
add chain=forward protocol=udp dst-port=135-139 action=drop comment=”" disabled=no
add chain=forward protocol=udp src-port=445 action=drop comment=”" disabled=no
add chain=forward protocol=udp dst-port=445 action=drop comment=”" disabled=no
add chain=forward protocol=tcp src-port=135-139 action=drop comment=”" disabled=no
add chain=forward protocol=tcp dst-port=135-139 action=drop comment=”" disabled=no
add chain=forward protocol=tcp src-port=445 action=drop comment=”" disabled=no
add chain=forward protocol=tcp dst-port=445 action=drop comment=”" disabled=no
add chain=forward protocol=tcp dst-port=4691 action=drop comment=”" disabled=no
add chain=forward protocol=tcp dst-port=5933 action=drop comment=”" disabled=no
add chain=forward protocol=udp dst-port=5355 action=drop comment=”Block LLMNR” disabled=no
add chain=forward protocol=udp dst-port=4647 action=drop comment=”" disabled=no
add action=drop chain=forward comment=”SMTP Deny” disabled=no protocol=tcp src-port=25
add action=drop chain=forward comment=”" disabled=no dst-port=25 protocol=tcp
anti confliker
/ ip firewall filter
add chain=forward protocol=udp src-port=135-139 action=drop comment=”;;Block W32.Kido – Conficker” disabled=no
add chain=forward protocol=udp dst-port=135-139 action=drop comment=”" disabled=no
add chain=forward protocol=udp src-port=445 action=drop comment=”" disabled=no
add chain=forward protocol=udp dst-port=445 action=drop comment=”" disabled=no
add chain=forward protocol=tcp src-port=135-139 action=drop comment=”" disabled=no
add chain=forward protocol=tcp dst-port=135-139 action=drop comment=”" disabled=no
add chain=forward protocol=tcp src-port=445 action=drop comment=”" disabled=no
add chain=forward protocol=tcp dst-port=445 action=drop comment=”" disabled=no
add chain=forward protocol=tcp dst-port=4691 action=drop comment=”" disabled=no
add chain=forward protocol=tcp dst-port=5933 action=drop comment=”" disabled=no
add chain=forward protocol=udp dst-port=5355 action=drop comment=”Block LLMNR” disabled=no
add chain=forward protocol=udp dst-port=4647 action=drop comment=”" disabled=no
add action=drop chain=forward comment=”SMTP Deny” disabled=no protocol=tcp src-port=25
add action=drop chain=forward comment=”" disabled=no dst-port=25 protocol=tcp
Setelah itu silahkan melakukan BackUp RouterBoard Mikrotik anda dan Reboot !!
Sumber: http://bisnis-rtrw-net.blogspot.com/2011/10/cara-blok-netcut-di-mikrotik-rb750g.html#ixzz25Lg1vgEY