Suspected hacking

RouterOS Beginner Basics
1

Hi,
I get the following on my Microtik router os.
Looks like someone is trying to log into my system.
Is there a way of blocking the IP thats trying to access or any better solution.
Thanks


echo: system,error,critical login failure for user ftp from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user test from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user root from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user admin from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user guest from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user master from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user apache from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user root from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user root from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user root from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user root from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user root from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user admin from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user admin from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user admin from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user admin from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user root from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user root from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user test from 67.225.209.238 via ssh
[admin@Sumo] >
echo: system,error,critical login failure for user test from 67.225.209.238 via ssh

2

the best solution is to change your ssh port from 22 to something else.

3

the best solution is to use the security scripts on the wiki.
http://wiki.mikrotik.com/wiki/Bruteforce_login_prevention_(FTP_%26_SSH)
http://wiki.mikrotik.com/wiki/Firewall

There are a lot of mentions of this in the forum.