Я не некрофил, пишу возможно ещё кому-то понадобятся такие вещи:
Нашел интересное решение, на мой взгляд в целом рабочее.
https://www.mihanik.net/mikrotik-zashhi ... brutforsa/
[quote/ip firewall filter
# В цепоче forward
add action=drop chain=forward comment=”Block BruteForcers” in-interface-list=ISP src-address-list=BruteForcers
add action=jump chain=forward comment=”RDP. Go into the chain for detecting Bruteforcers” connection-state=new dst-port=3389 in-interface-list=ISP jump-target=BruteForcersDetect protocol=tcp
# Цепочка BruteForcersDetect
add action=add-src-to-address-list address-list=BruteForcers address-list-timeout=1d chain=BruteForcersDetect comment=”Adding an address to the list of Bruteforcers” log=yes src-address-list=BruteForcers_Step15
add action=add-src-to-address-list address-list=BruteForcers_Step15 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step15 src-address-list=BruteForcers_Step14
add action=add-src-to-address-list address-list=BruteForcers_Step14 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step14 src-address-list=BruteForcers_Step13
add action=add-src-to-address-list address-list=BruteForcers_Step13 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step13 src-address-list=BruteForcers_Step12
add action=add-src-to-address-list address-list=BruteForcers_Step12 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step12 src-address-list=BruteForcers_Step11
add action=add-src-to-address-list address-list=BruteForcers_Step11 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step11 src-address-list=BruteForcers_Step10
add action=add-src-to-address-list address-list=BruteForcers_Step10 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step10 src-address-list=BruteForcers_Step9
add action=add-src-to-address-list address-list=BruteForcers_Step9 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step9 src-address-list=BruteForcers_Step8
add action=add-src-to-address-list address-list=BruteForcers_Step8 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step8 src-address-list=BruteForcers_Step7
add action=add-src-to-address-list address-list=BruteForcers_Step7 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step7 src-address-list=BruteForcers_Step6
add action=add-src-to-address-list address-list=BruteForcers_Step6 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step6 src-address-list=BruteForcers_Step5
add action=add-src-to-address-list address-list=BruteForcers_Step5 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step5 src-address-list=BruteForcers_Step4
add action=add-src-to-address-list address-list=BruteForcers_Step4 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step4 src-address-list=BruteForcers_Step3
add action=add-src-to-address-list address-list=BruteForcers_Step3 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step3 src-address-list=BruteForcers_Step2
add action=add-src-to-address-list address-list=BruteForcers_Step2 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step2 src-address-list=BruteForcers_Step1
add action=add-src-to-address-list address-list=BruteForcers_Step1 address-list-timeout=30m chain=BruteForcersDetect comment=BruteForcers_Step1
add action=return chain=BruteForcersDetect comment=”End of chain and return.”][/quote]