Jun 16 09:39:47 ns3042688 courier-pop3d: LOGIN FAILED, user=info@tienda-sikla.eu, ip=\[::ffff:94.102.51.7\]
...

Jun 15 23:47:31 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun 15 23:48:47 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun 15 23:50:19 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun 15 23:52:33 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun 15 23:54:52 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
...

Jun 15 13:23:49 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=185.118.198.210, session=<2CMUqR2o9OReZjMH>
Jun 15 13:24:56 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=185.118.198.210, session=
Jun 15 13:25:20 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=185.118.198.210, session=
Jun 15 13:25:59 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=185.118.198.210, session=
Jun 15 13:26:31 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.

Jun 15 14:16:20 ns3042688 courier-pop3d: LOGIN FAILED, user=info@makita-dolmar.net, ip=\[::ffff:94.102.51.7\]
...

Jun 15 01:27:35 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=185.118.198.210, session=
Jun 15 01:27:53 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=94.102.51.7, lip=185.118.198.210, session=
Jun 15 01:28:12 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=185.118.198.210, session=
Jun 15 01:30:52 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=185.118.198.210, session=
Jun 15 01:33:12 web01.agentur-b-2.de dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=

Jun 12 19:20:22 pop3-login: Info: Aborted login \(auth failed, 1 attempts in 2 secs\): user=\, method=PLAIN, rip=94.102.51.7, lip=192.168.100.101, session=\<6kWqSuan8gBeZjMH\>\
Jun 12 19:34:53 pop3-login: Info: Aborted login \(auth failed, 1 attempts in 2 secs\): user=\, method=PLAIN, rip=94.102.51.7, lip=192.168.100.101, session=\\
Jun 12 19:35:00 pop3-login: Info: Aborted login \(auth failed, 1 attempts in 6 secs\): user=\, method=PLAIN, rip=94.102.51.7, lip=192.168.100.101, session=\\
Jun 12 19:56:41 pop3-login: Info: Aborted login \(auth failed, 1 attempts in 2 secs\): user=\, method=PLAIN, rip=94.102.51.7, lip=192.168.100.101, session=\\
Jun 12 20:01:05 pop3-login: Info: Aborted login \(auth failed, 1 attempts in 2 secs\): user=\, method=PLAIN, rip=94.102.51.7, lip=192.168.100.101, session=\\
Jun 12 20:07:58 pop3-login: Info: A

Jun 12 09:27:07 ns3042688 courier-pop3d: LOGIN FAILED, user=info@alyco-tools.com, ip=\[::ffff:94.102.51.7\]
...

Jun 11 21:50:57 ns3042688 courier-pop3d: LOGIN FAILED, user=office@makita-dolmar.biz, ip=\[::ffff:94.102.51.7\]
...

Jun 10 09:27:23 ns3042688 courier-pop3d: LOGIN FAILED, user=support@alycotools.biz, ip=\[::ffff:94.102.51.7\]
...

Jun 10 02:02:21 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun 10 02:03:29 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun 10 02:04:06 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=<58H8lK+nNnZeZjMH>
Jun 10 02:04:40 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun 10 02:05:50 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, ses
...

Jun  9 11:58:14 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun  9 11:59:22 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun  9 11:59:59 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=
Jun  9 12:00:33 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=<9ek2zKOn8pReZjMH>
Jun  9 12:01:43 server dovecot: pop3-login: Aborted login (auth failed, 1 attempts in 2 secs): user=, method=PLAIN, rip=94.102.51.7, lip=172.104.140.148, session=

Jun  8 23:11:59 ns3042688 courier-pop3d: LOGIN FAILED, user=info@makita-dolmar.org, ip=\[::ffff:94.102.51.7\]
...

Jun  8 09:49:32 ns3042688 courier-pop3d: LOGIN FAILED, user=info@tienda-cmt.com, ip=\[::ffff:94.102.51.7\]
...

ET CINS Active Threat Intelligence Poor Reputation IP group 86 - port: 14265 proto: tcp cat: Misc Attackbytes: 60

[portscan] Port scan

Fail2Ban Ban Triggered

Oct 13 05:48:00 [host] kernel: [2892792.420159] [U
Oct 13 05:52:10 [host] kernel: [2893042.585542] [U
Oct 13 05:59:27 [host] kernel: [2893479.003593] [U
Oct 13 06:00:45 [host] kernel: [2893556.972194] [U
Oct 13 06:02:58 [host] kernel: [2893690.599550] [U
Oct 13 06:03:57 [host] kernel: [2893748.886505] [U

[MK-Root1] Blocked by UFW

Oct 12 22:53:57 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:4a:cc:28:99:3a:4d:23:91:08:00 SRC=94.102.51.28 DST=173.212.244.83 LEN=40 TOS=0x00 PREC=0x00 TTL=248 ID=50790 PROTO=TCP SPT=46594 DPT=45355 WINDOW=1024 RES=0x00 SYN URGP=0 Oct 12 22:58:36 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:4a:cc:28:99:3a:4d:23:91:08:00 SRC=94.102.51.28 DST=173.212.244.83 LEN=40 TOS=0x00 PREC=0x00 TTL=248 ID=4168 PROTO=TCP SPT=46594 DPT=47667 WINDOW=1024 RES=0x00 SYN URGP=0 Oct 12 23:01:47 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:4a:cc:28:99:3a:4d:23:91:08:00 SRC=94.102.51.28 DST=173.212.244.83 LEN=40 TOS=0x00 PREC=0x00 TTL=248 ID=40976 PROTO=TCP SPT=46594 DPT=13886 WINDOW=1024 RES=0x00 SYN URGP=0 Oct 12 23:08:05 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:4a:cc:28:99:3a:4d:23:91:08:00 SRC=94.102.51.28 DST=173.212.244.83 LEN=40 TOS=0x00 PREC=0x00 TTL=248 ID=34845 PROTO=TCP SPT=46594 DPT=29762 WINDOW=1024 RES=0x00 SYN URGP=0 Oct 12 23:09:15 *hidd
...

firewall-block, port(s): 5275/tcp

Oct  9 12:46:02 haigwepa sshd[8112]: Failed password for root from 94.102.51.78 port 45205 ssh2
Oct  9 12:46:06 haigwepa sshd[8112]: Failed password for root from 94.102.51.78 port 45205 ssh2
...

[MK-VM3] SSH login failed

 TCP (SYN) 94.102.51.28:45039 -> port 42954, len 44

49164/tcp 52334/tcp 60882/tcp...
[2020-08-07/10-08]47445pkt,38785pt.(tcp)

[H1.VM2] Blocked by UFW

 TCP (SYN) 94.102.51.28:45039 -> port 19163, len 44

Oct 7 12:48:08 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:4a:cc:28:99:3a:4d:23:91:08:00 SRC=94.102.51.28 DST=173.212.244.83 LEN=40 TOS=0x00 PREC=0x00 TTL=248 ID=46543 PROTO=TCP SPT=45039 DPT=31360 WINDOW=1024 RES=0x00 SYN URGP=0 Oct 7 12:49:13 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:4a:cc:28:99:3a:4d:23:91:08:00 SRC=94.102.51.28 DST=173.212.244.83 LEN=40 TOS=0x00 PREC=0x00 TTL=248 ID=21421 PROTO=TCP SPT=45039 DPT=53281 WINDOW=1024 RES=0x00 SYN URGP=0 Oct 7 13:01:05 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:4a:cc:28:99:3a:4d:23:91:08:00 SRC=94.102.51.28 DST=173.212.244.83 LEN=40 TOS=0x00 PREC=0x00 TTL=248 ID=43131 PROTO=TCP SPT=45039 DPT=23703 WINDOW=1024 RES=0x00 SYN URGP=0 Oct 7 13:03:35 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3e:4a:cc:28:99:3a:4d:23:91:08:00 SRC=94.102.51.28 DST=173.212.244.83 LEN=40 TOS=0x00 PREC=0x00 TTL=248 ID=43904 PROTO=TCP SPT=45039 DPT=44237 WINDOW=1024 RES=0x00 SYN URGP=0 Oct 7 13:05:31 *hidden* 
...

Port scan: Attack repeated for 24 hours

port scan and connect, tcp 23 (telnet)

MultiHost/MultiPort Probe, Scan, Hack -

Feb 15 07:21:45 dedicated sshd[5414]: Invalid user chad from 106.13.182.60 port 47322

Feb 15 07:16:34 silence02 sshd[13458]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.15.148.194
Feb 15 07:16:36 silence02 sshd[13458]: Failed password for invalid user rstudio from 51.15.148.194 port 40518 ssh2
Feb 15 07:20:10 silence02 sshd[13657]: Failed password for root from 51.15.148.194 port 41966 ssh2

Forbidden directory scan :: 2020/02/15 04:54:04 [error] 983#983: *695284 access forbidden by rule, client: 73.75.131.46, server: [censored_1], request: "HEAD /https://www.[censored_1]/ HTTP/1.1", host: "www.[censored_1]"

2020-02-15T07:18:55.843738scmdmz1 sshd[25333]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.35  user=root
2020-02-15T07:18:57.622218scmdmz1 sshd[25333]: Failed password for root from 222.186.30.35 port 58939 ssh2
2020-02-15T07:19:01.968106scmdmz1 sshd[25333]: Failed password for root from 222.186.30.35 port 58939 ssh2
2020-02-15T07:18:55.843738scmdmz1 sshd[25333]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.35  user=root
2020-02-15T07:18:57.622218scmdmz1 sshd[25333]: Failed password for root from 222.186.30.35 port 58939 ssh2
2020-02-15T07:19:01.968106scmdmz1 sshd[25333]: Failed password for root from 222.186.30.35 port 58939 ssh2
2020-02-15T07:18:55.843738scmdmz1 sshd[25333]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.30.35  user=root
2020-02-15T07:18:57.622218scmdmz1 sshd[25333]: Failed password for root from 222.186.30.35 port 58939 ssh2
2020-02-1

Feb 15 07:10:27 vps sshd[16854]: Failed password for root from 218.92.0.175 port 62790 ssh2
Feb 15 07:10:31 vps sshd[16854]: Failed password for root from 218.92.0.175 port 62790 ssh2
Feb 15 07:10:37 vps sshd[16854]: Failed password for root from 218.92.0.175 port 62790 ssh2
Feb 15 07:10:42 vps sshd[16854]: Failed password for root from 218.92.0.175 port 62790 ssh2
...

2020-02-15T07:15:22.403676scmdmz1 sshd[25024]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.17  user=root
2020-02-15T07:15:24.273421scmdmz1 sshd[25024]: Failed password for root from 222.186.190.17 port 63266 ssh2
2020-02-15T07:15:26.977983scmdmz1 sshd[25024]: Failed password for root from 222.186.190.17 port 63266 ssh2
2020-02-15T07:15:22.403676scmdmz1 sshd[25024]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.17  user=root
2020-02-15T07:15:24.273421scmdmz1 sshd[25024]: Failed password for root from 222.186.190.17 port 63266 ssh2
2020-02-15T07:15:26.977983scmdmz1 sshd[25024]: Failed password for root from 222.186.190.17 port 63266 ssh2
2020-02-15T07:15:22.403676scmdmz1 sshd[25024]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.17  user=root
2020-02-15T07:15:24.273421scmdmz1 sshd[25024]: Failed password for root from 222.186.190.17 port 63266 ssh2
2

MultiHost/MultiPort Probe, Scan, Hack -

Feb 15 06:50:02 [snip] postfix/smtpd[16221]: warning: unknown[193.56.28.220]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb 15 06:50:08 [snip] postfix/smtpd[16221]: warning: unknown[193.56.28.220]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb 15 06:50:18 [snip] postfix/smtpd[16221]: warning: unknown[193.56.28.220]: SASL LOGIN authentication failed: UGFzc3dvcmQ6[...]

Feb 15 07:12:43 legacy sshd[2042]: Failed password for root from 103.242.152.180 port 45076 ssh2
Feb 15 07:15:59 legacy sshd[2210]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.242.152.180
Feb 15 07:16:02 legacy sshd[2210]: Failed password for invalid user chelsey from 103.242.152.180 port 38240 ssh2
...

Feb 15 06:55:18 MK-Soft-Root2 sshd[552]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.250.36.113 
Feb 15 06:55:20 MK-Soft-Root2 sshd[552]: Failed password for invalid user sakrison from 103.250.36.113 port 18721 ssh2
...

unauthorized connection attempt

Invalid user zyl from 193.232.218.12 port 39794

unauthorized connection attempt