Sep 26 12:37:12 hcbbdb sshd\[7687\]: Invalid user nimda321 from 203.156.125.195
Sep 26 12:37:12 hcbbdb sshd\[7687\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.156.125.195
Sep 26 12:37:14 hcbbdb sshd\[7687\]: Failed password for invalid user nimda321 from 203.156.125.195 port 50665 ssh2
Sep 26 12:41:52 hcbbdb sshd\[8167\]: Invalid user p@\$\$w0rd from 203.156.125.195
Sep 26 12:41:52 hcbbdb sshd\[8167\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.156.125.195

Sep 26 13:10:35 venus sshd\[24056\]: Invalid user mailman from 103.36.84.100 port 33976
Sep 26 13:10:35 venus sshd\[24056\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.36.84.100
Sep 26 13:10:37 venus sshd\[24056\]: Failed password for invalid user mailman from 103.36.84.100 port 33976 ssh2
...

Sep 26 08:41:50 web1 postfix/smtpd[24465]: warning: unknown[46.38.144.179]: SASL LOGIN authentication failed: authentication failure
...

k+ssh-bruteforce

Sep 26 08:32:31 plusreed sshd[2274]: Invalid user tomcat from 106.12.205.132
Sep 26 08:32:31 plusreed sshd[2274]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.205.132
Sep 26 08:32:31 plusreed sshd[2274]: Invalid user tomcat from 106.12.205.132
Sep 26 08:32:34 plusreed sshd[2274]: Failed password for invalid user tomcat from 106.12.205.132 port 38888 ssh2
Sep 26 08:41:56 plusreed sshd[4505]: Invalid user login from 106.12.205.132
...

Sep 26 15:57:06 www sshd\[106312\]: Invalid user gabriel from 86.98.64.182
Sep 26 15:57:06 www sshd\[106312\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=86.98.64.182
Sep 26 15:57:08 www sshd\[106312\]: Failed password for invalid user gabriel from 86.98.64.182 port 53870 ssh2
...

" "

Sep 26 18:36:08 areeb-Workstation sshd[2419]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.2.190.194
Sep 26 18:36:10 areeb-Workstation sshd[2419]: Failed password for invalid user ubuntu from 14.2.190.194 port 41786 ssh2
...

(sshd) Failed SSH login from 139.59.91.139 (-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Sep 26 08:37:12 chookity sshd[30151]: Did not receive identification string from 139.59.91.139 port 60946
Sep 26 08:40:19 chookity sshd[30312]: Invalid user doctor from 139.59.91.139 port 33116
Sep 26 08:40:47 chookity sshd[30323]: Invalid user virus from 139.59.91.139 port 48666
Sep 26 08:41:15 chookity sshd[30326]: Invalid user windows from 139.59.91.139 port 37018
Sep 26 08:41:42 chookity sshd[30334]: Invalid user dummy from 139.59.91.139 port 52776

Sep 26 13:56:32 h1655903 dovecot: pop3-login: Disconnected \(auth failed, 1 attempts in 2 secs\): user=\, method=PLAIN, rip=185.202.175.38, lip=85.214.28.7, session=\
Sep 26 14:18:32 h1655903 dovecot: pop3-login: Disconnected \(auth failed, 1 attempts in 2 secs\): user=\, method=PLAIN, rip=185.202.175.38, lip=85.214.28.7, session=\<9718xHOT3fa5yq8m\>
Sep 26 14:40:52 h1655903 dovecot: pop3-login: Disconnected \(auth failed, 1 attempts in 2 secs\): user=\, method=PLAIN, rip=185.202.175.38, lip=85.214.28.7, session=\
...

Sep 26 14:41:49 bouncer sshd\[12261\]: Invalid user Chicago from 119.29.15.124 port 58162
Sep 26 14:41:49 bouncer sshd\[12261\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.29.15.124 
Sep 26 14:41:52 bouncer sshd\[12261\]: Failed password for invalid user Chicago from 119.29.15.124 port 58162 ssh2
...

Sep 26 14:59:39 vps647732 sshd[20756]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.227.66.159
Sep 26 14:59:41 vps647732 sshd[20756]: Failed password for invalid user arkserver from 43.227.66.159 port 50380 ssh2
...

Sep 26 03:14:00 kapalua sshd\[2811\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=173.248.242.25  user=backup
Sep 26 03:14:02 kapalua sshd\[2811\]: Failed password for backup from 173.248.242.25 port 44160 ssh2
Sep 26 03:20:32 kapalua sshd\[3370\]: Invalid user usuario from 173.248.242.25
Sep 26 03:20:32 kapalua sshd\[3370\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=173.248.242.25
Sep 26 03:20:34 kapalua sshd\[3370\]: Failed password for invalid user usuario from 173.248.242.25 port 36263 ssh2

Sep 26 12:31:37 baguette sshd\[20780\]: Invalid user minecraft from 188.226.206.71 port 33139
Sep 26 12:31:37 baguette sshd\[20780\]: Invalid user minecraft from 188.226.206.71 port 33139
Sep 26 12:34:47 baguette sshd\[20869\]: Invalid user libsys from 188.226.206.71 port 38217
Sep 26 12:34:47 baguette sshd\[20869\]: Invalid user libsys from 188.226.206.71 port 38217
Sep 26 12:41:17 baguette sshd\[21107\]: Invalid user user from 188.226.206.71 port 48354
Sep 26 12:41:17 baguette sshd\[21107\]: Invalid user user from 188.226.206.71 port 48354
...

2019-09-26T16:19:42.279932tmaserv sshd\[6702\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.55.86.19
2019-09-26T16:19:44.807486tmaserv sshd\[6702\]: Failed password for invalid user wuchunpeng from 45.55.86.19 port 36404 ssh2
2019-09-26T16:32:55.076466tmaserv sshd\[7434\]: Invalid user mh from 45.55.86.19 port 43523
2019-09-26T16:32:55.081120tmaserv sshd\[7434\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.55.86.19
2019-09-26T16:32:56.806063tmaserv sshd\[7434\]: Failed password for invalid user mh from 45.55.86.19 port 43523 ssh2
2019-09-26T16:37:19.321580tmaserv sshd\[7667\]: Invalid user supervisor from 45.55.86.19 port 36485
...