2020-01-26 05:53:17 H=(WIN-344VU98D3RU) [194.44.94.103] sender verify fail for : Unrouteable address
2020-01-26 05:53:17 H=(WIN-344VU98D3RU) [194.44.94.103] F= rejected RCPT : Sender verify failed
...

Jan 26 05:54:19 debian-2gb-nbg1-2 kernel: \[2273731.373581\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=78.112.176.216 DST=195.201.40.59 LEN=44 TOS=0x00 PREC=0x00 TTL=51 ID=15725 PROTO=TCP SPT=50234 DPT=60001 WINDOW=57148 RES=0x00 SYN URGP=0

Unauthorized connection attempt detected from IP address 106.13.44.100 to port 2220 [J]

Jan 26 06:53:57 * sshd[19973]: Failed password for root from 49.88.112.118 port 38080 ssh2

Jan 26 06:49:44 dcd-gentoo sshd[28799]: User root from 222.186.52.139 not allowed because none of user's groups are listed in AllowGroups
Jan 26 06:49:47 dcd-gentoo sshd[28799]: error: PAM: Authentication failure for illegal user root from 222.186.52.139
Jan 26 06:49:44 dcd-gentoo sshd[28799]: User root from 222.186.52.139 not allowed because none of user's groups are listed in AllowGroups
Jan 26 06:49:47 dcd-gentoo sshd[28799]: error: PAM: Authentication failure for illegal user root from 222.186.52.139
Jan 26 06:49:44 dcd-gentoo sshd[28799]: User root from 222.186.52.139 not allowed because none of user's groups are listed in AllowGroups
Jan 26 06:49:47 dcd-gentoo sshd[28799]: error: PAM: Authentication failure for illegal user root from 222.186.52.139
Jan 26 06:49:47 dcd-gentoo sshd[28799]: Failed keyboard-interactive/pam for invalid user root from 222.186.52.139 port 22897 ssh2
...

2020-01-26T05:42:52.809057shield sshd\[4667\]: Invalid user wouter from 104.223.143.155 port 37534
2020-01-26T05:42:52.813614shield sshd\[4667\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.223.143.155
2020-01-26T05:42:54.343890shield sshd\[4667\]: Failed password for invalid user wouter from 104.223.143.155 port 37534 ssh2
2020-01-26T05:44:37.159348shield sshd\[5123\]: Invalid user ANGED from 104.223.143.155 port 38030
2020-01-26T05:44:37.167289shield sshd\[5123\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.223.143.155

Jan 26 05:46:07 game-panel sshd[12253]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=163.172.204.185
Jan 26 05:46:09 game-panel sshd[12253]: Failed password for invalid user sss from 163.172.204.185 port 46093 ssh2
Jan 26 05:49:26 game-panel sshd[12412]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=163.172.204.185

"Fail2Ban detected SSH brute force attempt"

Jan 26 05:22:23 hcbbdb sshd\[29434\]: Invalid user admin from 209.97.166.200
Jan 26 05:22:23 hcbbdb sshd\[29434\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.97.166.200
Jan 26 05:22:25 hcbbdb sshd\[29434\]: Failed password for invalid user admin from 209.97.166.200 port 34702 ssh2
Jan 26 05:25:13 hcbbdb sshd\[29793\]: Invalid user david from 209.97.166.200
Jan 26 05:25:13 hcbbdb sshd\[29793\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.97.166.200

Autoban   36.37.131.238 AUTH/CONNECT

firewall-block, port(s): 3389/tcp

Jan 26 07:41:47 www sshd\[183084\]: Invalid user drake from 153.126.165.8
Jan 26 07:41:47 www sshd\[183084\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=153.126.165.8
Jan 26 07:41:50 www sshd\[183084\]: Failed password for invalid user drake from 153.126.165.8 port 44962 ssh2
...

(sshd) Failed SSH login from 91.121.157.15 (FR/France/ns359003.ip-91-121-157.eu): 2 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jan 26 06:40:23 ubnt-55d23 sshd[3562]: Invalid user pictures from 91.121.157.15 port 60276
Jan 26 06:40:25 ubnt-55d23 sshd[3562]: Failed password for invalid user pictures from 91.121.157.15 port 60276 ssh2

20/1/25@23:53:30: FAIL: Alarm-Network address from=36.84.63.152
...

IP was detected trying to Brute-Force SSH, FTP, Web Apps, Port-Scan or Hacking.