We have Two Microtik CCR 1036.It showing 100% CPU Usage.After visiting profile,We saw Firewall taking 100% usage.Kindly solve.
Kindly provide more information. Kindly think about blocking incoming traffic in raw table and use the fasttrack. Kindly set your firewall to follow basic security principles.
Also check layer 7 firewall action. It better be off.
I think it may be a language barrier issue as the post seems more like a google translate than anything else.
To the OP please post your firewall rules (filter, nat, raw, layer 7). So people can see what you have configured security wise.
To answer the question please solve.
a. being DDoS from the outside
b. Hijacked PCs on the inside (cryptojack mining for example)
Answer
a. Change configuration on router
b. put malware software on all PCs, and put malware extensions on browsers (or use edge only),