Triggered by Fail2Ban at Vostok web server

Oct  3 18:17:12 localhost kernel: [3878851.459442] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:84:78:ac:57:aa:c1:08:00 SRC=181.174.166.91 DST=[mungedIP2] LEN=40 TOS=0x08 PREC=0x20 TTL=82 ID=49622 DF PROTO=TCP SPT=61294 DPT=22 WINDOW=29200 RES=0x00 SYN URGP=0 
Oct  3 18:17:12 localhost kernel: [3878851.459449] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:84:78:ac:57:aa:c1:08:00 SRC=181.174.166.91 DST=[mungedIP2] LEN=40 TOS=0x08 PREC=0x20 TTL=82 ID=49622 DF PROTO=TCP SPT=61294 DPT=22 SEQ=175517773 ACK=0 WINDOW=29200 RES=0x00 SYN URGP=0 
Oct  3 23:58:25 localhost kernel: [3899324.964156] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:84:78:ac:57:a8:41:08:00 SRC=181.174.166.91 DST=[mungedIP2] LEN=40 TOS=0x08 PREC=0x20 TTL=73 ID=9271 DF PROTO=TCP SPT=59265 DPT=22 WINDOW=29200 RES=0x00 SYN URGP=0 
Oct  3 23:58:25 localhost kernel: [3899324.964183] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:84:78:ac:57:a8:41:08:00 SRC=181.174.166.91 DST=[mungedIP2] LEN=40 TOS=0x08

Attempts against SMTP/SSMTP

$f2bV_matches

(From ronald.robinson226@gmail.com) Hello,

Would you like to have a mobile app built for your business? I'm a freelance app developer who can build and program any type of application you can think of on any platform (Android, iOs, web). I'm great at what I do, and I'm able to deliver great results to my clients even if they're on a tight budget. 

Kindly reply to let me know if you're interested, so I can send you a portfolio of other mobile apps I've built for my past clients and schedule a time to chat or talk over the phone. If you'd like to learn more, then I'd be glad to give you a free consultation about how we can build an app for your business. Talk soon! 

Best regards,
Ronald Robinson

$f2bV_matches

Oct  4 06:58:27 MK-Soft-VM5 sshd[28283]: Failed password for root from 138.68.185.126 port 34554 ssh2
...

Oct  4 00:28:17 ny01 sshd[21741]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.16.26
Oct  4 00:28:19 ny01 sshd[21741]: Failed password for invalid user Amigo2017 from 80.211.16.26 port 40766 ssh2
Oct  4 00:32:27 ny01 sshd[22439]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.16.26

Oct  4 00:37:47 xtremcommunity sshd\[160024\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.95.84.34  user=root
Oct  4 00:37:49 xtremcommunity sshd\[160024\]: Failed password for root from 183.95.84.34 port 47605 ssh2
Oct  4 00:42:44 xtremcommunity sshd\[160153\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.95.84.34  user=root
Oct  4 00:42:46 xtremcommunity sshd\[160153\]: Failed password for root from 183.95.84.34 port 46921 ssh2
Oct  4 00:47:40 xtremcommunity sshd\[160214\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.95.84.34  user=root
...

Drupal Core Remote Code Execution Vulnerability, PTR: stikesbanten-24-130.fiber.net.id.

Oct  4 06:56:49 site3 sshd\[10348\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.173.80.134  user=root
Oct  4 06:56:51 site3 sshd\[10348\]: Failed password for root from 188.173.80.134 port 45078 ssh2
Oct  4 07:00:55 site3 sshd\[10456\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.173.80.134  user=root
Oct  4 07:00:57 site3 sshd\[10456\]: Failed password for root from 188.173.80.134 port 36941 ssh2
Oct  4 07:05:16 site3 sshd\[10578\]: Invalid user 123 from 188.173.80.134
Oct  4 07:05:16 site3 sshd\[10578\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.173.80.134
...

2019-10-04 07:18:44 H=\(\[193.32.160.143\]\) \[193.32.160.143\] F=\ rejected RCPT \: Unrouteable address
2019-10-04 07:18:44 H=\(\[193.32.160.143\]\) \[193.32.160.143\] F=\ rejected RCPT \: Unrouteable address
2019-10-04 07:18:44 H=\(\[193.32.160.143\]\) \[193.32.160.143\] F=\ rejected RCPT \: Unrouteable address
2019-10-04 07:18:44 H=\(\[193.32.160.143\]\) \[193.32.160.143\] F=\ rejected RCPT \: Unrouteable address
2019-10-04 07:18:44 H=\(\[193.32.160.143\]\) \[193.32.160.143\] F=\ rejected RCPT \: Unrouteable address
2019-10-04 07:18:44 H=\(\[193.32.160.143\]\) \[193.32.160.143\] F=\ rejected RCPT \: Unrouteable address
2019-10-04 07:18:44 H=\(\[193.32.160.143\]\) \[193.32.160.143\] F=\

2019-10-04T04:32:11.949729abusebot-6.cloudsearch.cf sshd\[8156\]: Invalid user Fantasy@2017 from 110.50.106.255 port 4673

Oct  3 18:27:57 php1 sshd\[1704\]: Invalid user Columbus123 from 162.243.158.198
Oct  3 18:27:57 php1 sshd\[1704\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=162.243.158.198
Oct  3 18:27:59 php1 sshd\[1704\]: Failed password for invalid user Columbus123 from 162.243.158.198 port 40404 ssh2
Oct  3 18:32:06 php1 sshd\[2063\]: Invalid user QWE!@\# from 162.243.158.198
Oct  3 18:32:06 php1 sshd\[2063\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=162.243.158.198

Oct  3 18:58:14 tdfoods sshd\[11446\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=114-32-218-5.hinet-ip.hinet.net  user=root
Oct  3 18:58:16 tdfoods sshd\[11446\]: Failed password for root from 114.32.218.5 port 34502 ssh2
Oct  3 19:02:54 tdfoods sshd\[11820\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=114-32-218-5.hinet-ip.hinet.net  user=root
Oct  3 19:02:56 tdfoods sshd\[11820\]: Failed password for root from 114.32.218.5 port 47356 ssh2
Oct  3 19:07:38 tdfoods sshd\[12227\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=114-32-218-5.hinet-ip.hinet.net  user=root