12345

Jun 28 13:54:14 pve1 sshd[1429]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.164.22.252 
Jun 28 13:54:16 pve1 sshd[1429]: Failed password for invalid user andrea from 180.164.22.252 port 47016 ssh2
...

<6 unauthorized SSH connections

2020-06-28T05:47:39.886324ns386461 sshd\[8026\]: Invalid user admin from 98.33.5.7 port 36548
2020-06-28T05:47:40.044739ns386461 sshd\[8026\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=98.33.5.7
2020-06-28T05:47:42.487904ns386461 sshd\[8026\]: Failed password for invalid user admin from 98.33.5.7 port 36548 ssh2
2020-06-28T05:47:44.011549ns386461 sshd\[8032\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=98.33.5.7  user=root
2020-06-28T05:47:46.004207ns386461 sshd\[8032\]: Failed password for root from 98.33.5.7 port 36718 ssh2
...

2020-06-27 22:39:32.900541-0500  localhost smtpd[52166]: NOQUEUE: reject: RCPT from unknown[197.188.221.206]: 554 5.7.1 Service unavailable; Client host [197.188.221.206] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS / https://www.spamhaus.org/query/ip/197.188.221.206; from= to= proto=ESMTP helo=<[197.188.221.206]>

(sshd) Failed SSH login from 106.52.104.135 (CN/China/-): 5 in the last 3600 secs

2020-06-28T09:59:29.172978randservbullet-proofcloud-66.localdomain sshd[11406]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.95.240  user=root
2020-06-28T09:59:31.253507randservbullet-proofcloud-66.localdomain sshd[11406]: Failed password for root from 175.24.95.240 port 36250 ssh2
2020-06-28T10:13:45.611675randservbullet-proofcloud-66.localdomain sshd[11437]: Invalid user zq from 175.24.95.240 port 39898
...

$f2bV_matches

Jun 25 16:17:49 foo sshd[7927]: Invalid user postgres from 80.89.131.62
Jun 25 16:17:50 foo sshd[7927]: Failed password for invalid user postgres from 80.89.131.62 port 59147 ssh2
Jun 25 16:17:51 foo sshd[7927]: Received disconnect from 80.89.131.62: 11: Bye Bye [preauth]
Jun 25 16:29:12 foo sshd[8671]: Failed password for r.r from 80.89.131.62 port 51855 ssh2
Jun 25 16:29:13 foo sshd[8671]: Received disconnect from 80.89.131.62: 11: Bye Bye [preauth]
Jun 25 16:32:33 foo sshd[8850]: Invalid user soporte from 80.89.131.62
Jun 25 16:32:35 foo sshd[8850]: Failed password for invalid user soporte from 80.89.131.62 port 52169 ssh2
Jun 25 16:32:35 foo sshd[8850]: Received disconnect from 80.89.131.62: 11: Bye Bye [preauth]
Jun 25 16:35:50 foo sshd[9001]: Invalid user scott from 80.89.131.62
Jun 25 16:35:51 foo sshd[9001]: Failed password for invalid user scott from 80.89.131.62 port 34020 ssh2
Jun 25 16:35:51 foo sshd[9001]: Received disconnect from 80.89.131.62: 11: Bye Bye ........
-------------------------------

Jun 28 12:34:59 ns381471 sshd[26419]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.124.201.61
Jun 28 12:35:02 ns381471 sshd[26419]: Failed password for invalid user echo from 177.124.201.61 port 33140 ssh2

port scan and connect, tcp 80 (http)

Jun 28 05:47:32 debian-2gb-nbg1-2 kernel: \[15574701.588258\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=183.157.169.146 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=50 ID=44856 PROTO=TCP SPT=31059 DPT=23 WINDOW=21627 RES=0x00 SYN URGP=0

2020-06-27 22:37:55.595158-0500  localhost smtpd[52166]: NOQUEUE: reject: RCPT from a109-51-13-12.cpe.netcabo.pt[109.51.13.12]: 554 5.7.1 Service unavailable; Client host [109.51.13.12] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/109.51.13.12; from= to= proto=ESMTP helo=

sshd jail - ssh hack attempt

Automatic report - Port Scan Attack