Dec 13 19:17:28 vpn01 sshd[28420]: Failed password for root from 222.186.180.9 port 49594 ssh2
Dec 13 19:17:43 vpn01 sshd[28420]: error: maximum authentication attempts exceeded for root from 222.186.180.9 port 49594 ssh2 [preauth]
...

Dec 13 16:57:31 MK-Soft-VM7 sshd[23657]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.205.202.35 
Dec 13 16:57:34 MK-Soft-VM7 sshd[23657]: Failed password for invalid user nakakubo from 200.205.202.35 port 50192 ssh2
...

Says bank of america  I don't even bank there

Received: from p-mtain019.msg.pkvw.co.charter.net ([107.14.174.244])
          by cdptpa-fep16.email.rr.com
          (InterMail vM.8.04.03.24 201-2389-100-172-20151028) with ESMTP
          id <20191213055620.HGET16311.cdptpa-fep16.email.rr.com@p-mtain019.msg.pkvw.co.charter.net>
          for ; Fri, 13 Dec 2019 05:56:20 +0000
Received: from p-impin017.msg.pkvw.co.charter.net ([47.43.26.158])
          by p-mtain019.msg.pkvw.co.charter.net
          (InterMail vM.9.01.00.037.1 201-2473-137-122-172) with ESMTP
          id <20191213055620.IDYP27565.p-mtain019.msg.pkvw.co.charter.net@p-impin017.msg.pkvw.co.charter.net>
          for ; Fri, 13 Dec 2019 05:56:20 +0000
Received: from mx-n06.wc1.lan3.stabletransit.com ([207.246.249.46])
	by cmsmtp with ESMTP
	id fdw3i9SPh7XNKfdw3i7JNm; Fri, 13 Dec 2019 05:56:20 +0000

Dec 13 21:14:54 server sshd\[24752\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.115  user=root
Dec 13 21:14:56 server sshd\[24752\]: Failed password for root from 49.88.112.115 port 61385 ssh2
Dec 13 21:14:58 server sshd\[24752\]: Failed password for root from 49.88.112.115 port 61385 ssh2
Dec 13 21:15:01 server sshd\[24752\]: Failed password for root from 49.88.112.115 port 61385 ssh2
Dec 13 21:17:01 server sshd\[25588\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.115  user=root
...

fail2ban

Dec 13 19:01:02 h2177944 sshd\[28479\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.252.45  user=root
Dec 13 19:01:04 h2177944 sshd\[28479\]: Failed password for root from 157.230.252.45 port 54496 ssh2
Dec 13 19:08:13 h2177944 sshd\[28655\]: Invalid user jacky from 157.230.252.45 port 40756
Dec 13 19:08:13 h2177944 sshd\[28655\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.252.45
...

Dec 13 19:27:17 nextcloud sshd\[26097\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.161  user=root
Dec 13 19:27:19 nextcloud sshd\[26097\]: Failed password for root from 222.186.175.161 port 34704 ssh2
Dec 13 19:27:38 nextcloud sshd\[26651\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.161  user=root
...

" "

Dec 13 08:12:15 auw2 sshd\[3883\]: Invalid user lisa from 139.59.41.154
Dec 13 08:12:15 auw2 sshd\[3883\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.41.154
Dec 13 08:12:17 auw2 sshd\[3883\]: Failed password for invalid user lisa from 139.59.41.154 port 33440 ssh2
Dec 13 08:20:56 auw2 sshd\[4701\]: Invalid user jiao from 139.59.41.154
Dec 13 08:20:56 auw2 sshd\[4701\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.41.154

SSH bruteforce (Triggered fail2ban)

Unauthorized connection attempt detected from IP address 154.47.138.53 to port 445

Dec 13 16:46:03 Ubuntu-1404-trusty-64-minimal sshd\[4723\]: Invalid user barnhardt from 188.166.208.131
Dec 13 16:46:03 Ubuntu-1404-trusty-64-minimal sshd\[4723\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.208.131
Dec 13 16:46:04 Ubuntu-1404-trusty-64-minimal sshd\[4723\]: Failed password for invalid user barnhardt from 188.166.208.131 port 44512 ssh2
Dec 13 16:57:49 Ubuntu-1404-trusty-64-minimal sshd\[12069\]: Invalid user shatter from 188.166.208.131
Dec 13 16:57:49 Ubuntu-1404-trusty-64-minimal sshd\[12069\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.208.131

Dec1316:57:12server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:18server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:24server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:29server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:32server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:36server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:41server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:47server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:52server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jelleyltd]Dec1316:57:58server4pure-ftpd:\(\?@43.228.117.46\)[WARNING]Authenticationfailedforuser[jell]

Dec 13 19:33:31 tux-35-217 sshd\[29381\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.141  user=root
Dec 13 19:33:33 tux-35-217 sshd\[29381\]: Failed password for root from 218.92.0.141 port 44901 ssh2
Dec 13 19:33:36 tux-35-217 sshd\[29381\]: Failed password for root from 218.92.0.141 port 44901 ssh2
Dec 13 19:33:40 tux-35-217 sshd\[29381\]: Failed password for root from 218.92.0.141 port 44901 ssh2
...

DLink DSL Remote OS Command Injection Vulnerability, PTR: PTR record not found