2020-08-07T14:03:58.753464amanda2.illicoweb.com sshd\[43599\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.ip-54-37-71.eu  user=root
2020-08-07T14:04:00.806082amanda2.illicoweb.com sshd\[43599\]: Failed password for root from 54.37.71.203 port 60590 ssh2
2020-08-07T14:06:33.498506amanda2.illicoweb.com sshd\[44049\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.ip-54-37-71.eu  user=root
2020-08-07T14:06:35.496241amanda2.illicoweb.com sshd\[44049\]: Failed password for root from 54.37.71.203 port 47566 ssh2
2020-08-07T14:08:55.593076amanda2.illicoweb.com sshd\[44381\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=203.ip-54-37-71.eu  user=root
...

Aug  7 14:03:14 relay dovecot: imap-login: Disconnected: Inactivity \(auth failed, 1 attempts in 180 secs\): user=\, method=PLAIN, rip=94.31.85.173, lip=176.9.177.164, session=\<8QMCWUisceZeH1Wt\>
Aug  7 14:03:16 relay dovecot: imap-login: Disconnected: Inactivity \(auth failed, 1 attempts in 180 secs\): user=\, method=PLAIN, rip=94.31.85.173, lip=176.9.177.164, session=\<3E8jWUisRZ9eH1Wt\>
Aug  7 14:03:38 relay dovecot: imap-login: Disconnected: Inactivity \(auth failed, 1 attempts in 180 secs\): user=\, method=PLAIN, rip=94.31.85.173, lip=176.9.177.164, session=\
Aug  7 14:08:48 relay dovecot: imap-login: Disconnected: Inactivity \(auth failed, 1 attempts in 180 secs\): user=\, method=PLAIN, rip=94.31.85.173, lip=176.9.177.164, session=\
Aug  7 14:08:50 relay dovecot: imap-login: Disconnected: Inactivity \(auth failed, 1 attempts in 180 secs\):
...

Aug  7 14:08:53 lnxded63 sshd[5117]: Failed password for root from 106.12.153.107 port 38378 ssh2
Aug  7 14:08:53 lnxded63 sshd[5117]: Failed password for root from 106.12.153.107 port 38378 ssh2

Aug  7 14:42:34 vh1 sshd[11922]: Did not receive identification string from 122.156.225.54
Aug  7 14:44:37 vh1 sshd[11995]: Invalid user butter from 122.156.225.54
Aug  7 14:44:37 vh1 sshd[11995]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.156.225.54 
Aug  7 14:44:40 vh1 sshd[11995]: Failed password for invalid user butter from 122.156.225.54 port 57606 ssh2
Aug  7 14:44:40 vh1 sshd[11996]: Received disconnect from 122.156.225.54: 11: Normal Shutdown, Thank you for playing
Aug  7 14:45:15 vh1 sshd[12051]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.156.225.54  user=r.r


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=122.156.225.54

Banned for a week because repeated abuses, for example SSH, but not only

Aug  7 06:54:15 ns3033917 sshd[1554]: Failed password for root from 114.67.166.50 port 41162 ssh2
Aug  7 06:58:29 ns3033917 sshd[1603]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=114.67.166.50  user=root
Aug  7 06:58:32 ns3033917 sshd[1603]: Failed password for root from 114.67.166.50 port 54670 ssh2
...

Aug  7 14:05:13 vpn01 sshd[30570]: Failed password for root from 37.123.163.106 port 55928 ssh2
...

Aug  7 11:07:06 ovpn sshd\[25333\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=219.150.93.157  user=root
Aug  7 11:07:08 ovpn sshd\[25333\]: Failed password for root from 219.150.93.157 port 48799 ssh2
Aug  7 11:21:55 ovpn sshd\[31457\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=219.150.93.157  user=root
Aug  7 11:21:57 ovpn sshd\[31457\]: Failed password for root from 219.150.93.157 port 43043 ssh2
Aug  7 11:24:03 ovpn sshd\[32444\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=219.150.93.157  user=root

2020-08-07T13:55:42.963990amanda2.illicoweb.com sshd\[42188\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.112.57.224  user=root
2020-08-07T13:55:45.257216amanda2.illicoweb.com sshd\[42188\]: Failed password for root from 193.112.57.224 port 48074 ssh2
2020-08-07T13:58:05.656371amanda2.illicoweb.com sshd\[42538\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.112.57.224  user=root
2020-08-07T13:58:07.914464amanda2.illicoweb.com sshd\[42538\]: Failed password for root from 193.112.57.224 port 57632 ssh2
2020-08-07T14:00:15.883807amanda2.illicoweb.com sshd\[42906\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.112.57.224  user=root
...

2020-08-07T14:06:50.917150amanda2.illicoweb.com sshd\[44084\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=net-188-217-99-83.cust.vodafonedsl.it  user=root
2020-08-07T14:06:52.914634amanda2.illicoweb.com sshd\[44084\]: Failed password for root from 188.217.99.83 port 35700 ssh2
2020-08-07T14:08:36.646750amanda2.illicoweb.com sshd\[44349\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=net-188-217-99-83.cust.vodafonedsl.it  user=root
2020-08-07T14:08:38.528918amanda2.illicoweb.com sshd\[44349\]: Failed password for root from 188.217.99.83 port 47940 ssh2
2020-08-07T14:14:07.525997amanda2.illicoweb.com sshd\[45276\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=net-188-217-99-83.cust.vodafonedsl.it  user=root
...

Aug  7 08:27:00 ovpn sshd\[21571\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.112.44.102  user=root
Aug  7 08:27:03 ovpn sshd\[21571\]: Failed password for root from 193.112.44.102 port 55124 ssh2
Aug  7 08:44:45 ovpn sshd\[28956\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.112.44.102  user=root
Aug  7 08:44:46 ovpn sshd\[28956\]: Failed password for root from 193.112.44.102 port 38488 ssh2
Aug  7 08:53:43 ovpn sshd\[32169\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=193.112.44.102  user=root

[2020-08-06 23:47:35] NOTICE[1248] chan_sip.c: Registration from '' failed for '147.135.253.94:63385' - Wrong password
[2020-08-06 23:47:35] SECURITY[1275] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-08-06T23:47:35.192-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1556",SessionID="0x7f27204d2b88",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/147.135.253.94/63385",Challenge="0a6db31c",ReceivedChallenge="0a6db31c",ReceivedHash="6f647d6049dfc81c57c21c8c166e6cb3"
[2020-08-06 23:47:54] NOTICE[1248] chan_sip.c: Registration from '' failed for '147.135.253.94:59913' - Wrong password
[2020-08-06 23:47:54] SECURITY[1275] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-08-06T23:47:54.895-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1557",SessionID="0x7f2720259e98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/147.135.25
...

Unauthorized connection attempt from IP address 95.65.28.244 on Port 445(SMB)

DDoS Attack

SSH Bruteforce