2019-07-01T06:05:15.939140ns1.unifynetsol.net postfix/smtpd\[30294\]: warning: unknown\[45.13.39.120\]: SASL LOGIN authentication failed: authentication failure
2019-07-01T15:00:57.557891ns1.unifynetsol.net postfix/smtpd\[19298\]: warning: unknown\[45.13.39.120\]: SASL LOGIN authentication failed: authentication failure
2019-07-01T15:01:15.250361ns1.unifynetsol.net postfix/smtpd\[19298\]: warning: unknown\[45.13.39.120\]: SASL LOGIN authentication failed: authentication failure
2019-07-01T15:01:35.115854ns1.unifynetsol.net postfix/smtpd\[19298\]: warning: unknown\[45.13.39.120\]: SASL LOGIN authentication failed: authentication failure
2019-07-01T15:01:53.913770ns1.unifynetsol.net postfix/smtpd\[19298\]: warning: unknown\[45.13.39.120\]: SASL LOGIN authentication failed: authentication failure

2019-07-01T12:57:36.028862enmeeting.mahidol.ac.th sshd\[19823\]: Invalid user ning from 148.70.71.137 port 58267
2019-07-01T12:57:36.047764enmeeting.mahidol.ac.th sshd\[19823\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=148.70.71.137
2019-07-01T12:57:38.294371enmeeting.mahidol.ac.th sshd\[19823\]: Failed password for invalid user ning from 148.70.71.137 port 58267 ssh2
...

Jul  1 07:59:09 lnxded64 sshd[4022]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.64.10
Jul  1 07:59:09 lnxded64 sshd[4022]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.64.10

Jul  1 05:40:56 localhost sshd\[1636\]: Invalid user gontran from 36.89.119.92
Jul  1 05:40:56 localhost sshd\[1636\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.89.119.92
Jul  1 05:40:58 localhost sshd\[1636\]: Failed password for invalid user gontran from 36.89.119.92 port 50548 ssh2
Jul  1 05:43:13 localhost sshd\[1685\]: Invalid user cs from 36.89.119.92
Jul  1 05:43:13 localhost sshd\[1685\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.89.119.92
...

Jul  1 10:54:40 mail sshd\[30217\]: Invalid user suel from 106.12.116.185 port 38438
Jul  1 10:54:40 mail sshd\[30217\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.116.185
Jul  1 10:54:42 mail sshd\[30217\]: Failed password for invalid user suel from 106.12.116.185 port 38438 ssh2
Jul  1 10:56:36 mail sshd\[31167\]: Invalid user epiphanie from 106.12.116.185 port 54620
Jul  1 10:56:36 mail sshd\[31167\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.116.185
...

[WP hack/exploit]
[multiweb: req 5 domains(hosts/ip)]
[bad UserAgent]

Invalid user user1 from 111.230.241.90 port 53858

Jul  1 11:54:54 mail postfix/smtpd\[7354\]: warning: unknown\[185.222.209.40\]: SASL PLAIN authentication failed: \
Jul  1 11:57:22 mail postfix/smtpd\[6496\]: warning: unknown\[185.222.209.40\]: SASL PLAIN authentication failed: \
Jul  1 12:28:23 mail postfix/smtpd\[8270\]: warning: unknown\[185.222.209.40\]: SASL PLAIN authentication failed: \
Jul  1 12:28:33 mail postfix/smtpd\[7983\]: warning: unknown\[185.222.209.40\]: SASL PLAIN authentication failed: \

Automatic report - Web App Attack

Jul  1 13:30:03 mail postfix/smtpd\[21753\]: warning: unknown\[103.231.139.130\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  1 13:30:41 mail postfix/smtpd\[24931\]: warning: unknown\[103.231.139.130\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  1 13:31:19 mail postfix/smtpd\[23289\]: warning: unknown\[103.231.139.130\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Jul  1 05:30:47 admin sendmail[4958]: x613UkX0004958: [216.170.114.14] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Jul  1 05:30:47 admin sendmail[4959]: x613Ul5G004959: [216.170.114.14] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Jul  1 05:30:47 admin sendmail[4960]: x613UlnT004960: [216.170.114.14] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Jul  1 05:30:48 admin sendmail[4963]: x613UmT9004963: [216.170.114.14] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=216.170.114.14

Jul  1 05:17:39 localhost sshd\[25167\]: Invalid user rabbitmq from 51.255.83.178 port 38852
Jul  1 05:17:39 localhost sshd\[25167\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.255.83.178
...

\[2019-07-01 03:02:08\] NOTICE\[5148\] chan_sip.c: Registration from '"90" \' failed for '113.141.70.249:5064' - Wrong password
\[2019-07-01 03:02:08\] SECURITY\[5156\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-01T03:02:08.005-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="90",SessionID="0x7f13a854c218",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/113.141.70.249/5064",Challenge="43a260c9",ReceivedChallenge="43a260c9",ReceivedHash="76f1b31199c997f30ef0090ee731a71c"
\[2019-07-01 03:02:08\] NOTICE\[5148\] chan_sip.c: Registration from '"90" \' failed for '113.141.70.249:5064' - Wrong password
\[2019-07-01 03:02:08\] SECURITY\[5156\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-01T03:02:08.339-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="90",SessionID="0x7f13a909e138",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/113.141

SMTP/25/465/587-993/995 Probe, Reject, BadAuth, Hack, SPAM -

Jul  1 06:15:05 ns37 sshd[10374]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.128.181
Jul  1 06:15:05 ns37 sshd[10374]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.128.181