Dec 30 03:50:05 ws24vmsma01 sshd[92682]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.191.48.152
Dec 30 03:50:06 ws24vmsma01 sshd[92682]: Failed password for invalid user keuser from 94.191.48.152 port 38496 ssh2
...

Dec 30 06:39:49 sd-53420 sshd\[25230\]: Invalid user bate from 60.211.194.212
Dec 30 06:39:49 sd-53420 sshd\[25230\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.211.194.212
Dec 30 06:39:51 sd-53420 sshd\[25230\]: Failed password for invalid user bate from 60.211.194.212 port 2076 ssh2
Dec 30 06:49:23 sd-53420 sshd\[28384\]: Invalid user dinu from 60.211.194.212
Dec 30 06:49:23 sd-53420 sshd\[28384\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.211.194.212
...

Dec 30 06:08:53 m3061 sshd[23370]: Address 113.176.89.116 maps to static.vnpt.vn, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Dec 30 06:08:53 m3061 sshd[23370]: Invalid user wirtl from 113.176.89.116
Dec 30 06:08:53 m3061 sshd[23370]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=113.176.89.116


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=113.176.89.116

Automatic report - Port Scan Attack

/phpmyadmin/

Dec 30 07:31:30 dcd-gentoo sshd[17524]: User root from 218.92.0.198 not allowed because none of user's groups are listed in AllowGroups
Dec 30 07:31:33 dcd-gentoo sshd[17524]: error: PAM: Authentication failure for illegal user root from 218.92.0.198
Dec 30 07:31:30 dcd-gentoo sshd[17524]: User root from 218.92.0.198 not allowed because none of user's groups are listed in AllowGroups
Dec 30 07:31:33 dcd-gentoo sshd[17524]: error: PAM: Authentication failure for illegal user root from 218.92.0.198
Dec 30 07:31:30 dcd-gentoo sshd[17524]: User root from 218.92.0.198 not allowed because none of user's groups are listed in AllowGroups
Dec 30 07:31:33 dcd-gentoo sshd[17524]: error: PAM: Authentication failure for illegal user root from 218.92.0.198
Dec 30 07:31:33 dcd-gentoo sshd[17524]: Failed keyboard-interactive/pam for invalid user root from 218.92.0.198 port 44220 ssh2
...

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

Brute force SMTP login attempts.

ET CINS Active Threat Intelligence Poor Reputation IP group 91 - port: 1719 proto: UDP cat: Misc Attack

Dec 30 06:15:39 marvibiene sshd[46179]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=140.143.236.197  user=root
Dec 30 06:15:41 marvibiene sshd[46179]: Failed password for root from 140.143.236.197 port 32846 ssh2
Dec 30 06:40:48 marvibiene sshd[46651]: Invalid user investor from 140.143.236.197 port 60182
...

Dec 30 07:00:59 sd-53420 sshd\[32221\]: User root from 112.85.42.180 not allowed because none of user's groups are listed in AllowGroups
Dec 30 07:00:59 sd-53420 sshd\[32221\]: Failed none for invalid user root from 112.85.42.180 port 32062 ssh2
Dec 30 07:00:59 sd-53420 sshd\[32221\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.180  user=root
Dec 30 07:01:01 sd-53420 sshd\[32221\]: Failed password for invalid user root from 112.85.42.180 port 32062 ssh2
Dec 30 07:01:11 sd-53420 sshd\[32221\]: Failed password for invalid user root from 112.85.42.180 port 32062 ssh2
...

Dec 30 03:15:56 ws22vmsma01 sshd[81356]: Failed password for root from 183.111.125.172 port 51472 ssh2
Dec 30 03:30:53 ws22vmsma01 sshd[50501]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.111.125.172
...

$f2bV_matches

Dec 30 05:54:55 grey postfix/smtpd\[15789\]: NOQUEUE: reject: RCPT from unknown\[64.225.3.2\]: 554 5.7.1 Service unavailable\; Client host \[64.225.3.2\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[64.225.3.2\]\; from=\ to=\ proto=ESMTP helo=\
...

Dec 30 06:56:38 thevastnessof sshd[28320]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=77.87.99.68
...