Oct 21 16:55:52 MK-Soft-VM4 sshd[23106]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=35.220.128.86 
Oct 21 16:55:54 MK-Soft-VM4 sshd[23106]: Failed password for invalid user max from 35.220.128.86 port 33898 ssh2
...

2019-10-21T11:42:56.825180abusebot-5.cloudsearch.cf sshd\[3673\]: Invalid user notification from 121.184.64.15 port 15374

Oct 21 16:58:48 MainVPS sshd[3045]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.147  user=root
Oct 21 16:58:50 MainVPS sshd[3045]: Failed password for root from 222.186.175.147 port 44992 ssh2
Oct 21 16:59:08 MainVPS sshd[3045]: error: maximum authentication attempts exceeded for root from 222.186.175.147 port 44992 ssh2 [preauth]
Oct 21 16:58:48 MainVPS sshd[3045]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.147  user=root
Oct 21 16:58:50 MainVPS sshd[3045]: Failed password for root from 222.186.175.147 port 44992 ssh2
Oct 21 16:59:08 MainVPS sshd[3045]: error: maximum authentication attempts exceeded for root from 222.186.175.147 port 44992 ssh2 [preauth]
Oct 21 16:59:19 MainVPS sshd[3078]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.147  user=root
Oct 21 16:59:20 MainVPS sshd[3078]: Failed password for root from 222.186.175.147 port 41106 ss

Military email scam attempt. Rec'd em from Danielle Williams (connerdanille77@gmail.com). Claimed to be from Summerlin, Nv, but serving in Kabul, Afganistan, under contract as an E-6 in the US Marines Medical Department (RN nurse USMC). Claims to have found my profile on Google Plus (but I have never used Google Plus), and wanted to get to know me better (I am 74, she looks about 30). Attached 2 pix of a gorgeous blonde in a summer dress and on in fatigues standing on a truck step.  I did a Google image search and found the pix are of "Combat Barbie", Rianna Carpenter Conner, a veteran and a tattoo model, with Combat Barbie clothing business. Told her to get lost.

45.12.204.42 has been banned for [spam]
...

Oct 21 13:42:45 server postfix/smtpd[32599]: NOQUEUE: reject: RCPT from unknown[58.137.89.226]: 554 5.7.1 Service unavailable; Client host [58.137.89.226] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS / https://www.spamhaus.org/query/ip/58.137.89.226; from= to= proto=ESMTP helo=<[58.137.89.226]>

Oct 21 13:35:26 mxgate1 postfix/postscreen[23236]: CONNECT from [105.1.34.42]:40726 to [176.31.12.44]:25
Oct 21 13:35:26 mxgate1 postfix/dnsblog[23259]: addr 105.1.34.42 listed by domain zen.spamhaus.org as 127.0.0.11
Oct 21 13:35:32 mxgate1 postfix/postscreen[23236]: DNSBL rank 2 for [105.1.34.42]:40726
Oct x@x
Oct 21 13:35:33 mxgate1 postfix/postscreen[23236]: HANGUP after 1.3 from [105.1.34.42]:40726 in tests after SMTP handshake
Oct 21 13:35:33 mxgate1 postfix/postscreen[23236]: DISCONNECT [105.1.34.42]:40726


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=105.1.34.42

2019-10-21 x@x
2019-10-21 13:15:06 unexpected disconnection while reading SMTP command from ([102.164.151.223]) [102.164.151.223]:34200 I=[10.100.18.22]:25 (error: Connection reset by peer)
2019-10-21 x@x


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=102.164.151.223

Invalid user man from 103.225.99.36 port 48771

Brute force SMTP login attempts.

Oct 21 13:37:35 sso sshd[27865]: Failed password for root from 106.13.59.16 port 32866 ssh2
...

RDP-Bruteforce | Cancer2Ban-Autoban for Windows (see: https://github.com/Zeziroth/Cancer2Ban)

xmlrpc attack

2019-10-21T13:51:32.173726abusebot-7.cloudsearch.cf sshd\[30088\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=144.13.204.196  user=root

LGS,WP GET /wp-login.php