All times shown are in GMT-5: (the times from my own log is GMT+1)

Feb 4 05:14:57 brianmartin sshd[12351]: Connection from 213.xxx.xxx.xxx port 55540
Feb 4 05:15:02 brianmartin sshd[12351]: Failed password for root from 213.xxx.xxx.xxx port 55540 ssh2
Feb 4 05:15:02 brianmartin sshd[12351]: Received disconnect from 213.xxx.xxx.xxx: 11: [preauth]

Feb 4 05:15:02 brianmartin sshd[12356]: Connection from 213.xxx.xxx.xxx port 55550
Feb 4 05:15:05 brianmartin sshd[12356]: Invalid user ubnt from 213.xxx.xxx.xxx
Feb 4 05:15:08 brianmartin sshd[12356]: Failed password for invalid user ubnt from 213.xxx.xxx.xxx port 55550 ssh2
Feb 4 05:15:08 brianmartin sshd[12356]: Received disconnect from 213.xxx.xxx.xxx: 11: [preauth]

Feb 4 05:15:09 brianmartin sshd[12358]: Connection from 213.xxx.xxx.xxx port 55561
Feb 4 05:15:12 brianmartin sshd[12358]: Invalid user admin from 213.xxx.xxx.xxx port 55561 ssh2
Feb 4 05:15:15 brianmartin sshd[12358]: Failed password for invalid user admin from 213.xxx.xxx.xxx port 55561 ssh2
Feb 4 05:15:16 brianmartin sshd[12358]: Received disconnect from 213.xxx.xxx.xxx: 11: [preauth]

And so it continues with invalid user support and then invalid user admin once again.