1591358574 - 06/05/2020 14:02:54 Host: 125.161.136.11/125.161.136.11 Port: 445 TCP Blocked

2020-06-05 07:01:47.273497-0500  localhost smtpd[20938]: NOQUEUE: reject: RCPT from unknown[107.158.163.142]: 450 4.7.25 Client host rejected: cannot find your hostname, [107.158.163.142]; from= to= proto=ESMTP helo=

scans 2 times in preceeding hours on the ports (in chronological order) 5900 5900

[Fri Jun 05 19:02:27.139311 2020] [:error] [pid 4728:tid 140368953304832] [client 96.8.119.75:38461] [client 96.8.119.75] ModSecurity: Access denied with code 403 (phase 1). Match of "within %{tx.allowed_http_versions}" against "REQUEST_PROTOCOL" required. [file "/etc/modsecurity/owasp-modsecurity-crs-3.2.0/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "972"] [id "920430"] [msg "HTTP protocol version is not allowed by policy"] [data "HTTP/1.0"] [severity "CRITICAL"] [ver "OWASP_CRS/3.2.0"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "OWASP_CRS"] [tag "OWASP_CRS/POLICY/PROTOCOL_NOT_ALLOWED"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A6"] [tag "PCI/6.5.10"] [hostname "staklim-malang.info"] [uri "/"] [unique_id "Xto0UyFMmd-oMYz0CEYwHQAAAQ4"]
...

Jun  5 13:52:58 mail sshd\[31409\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.92.139.2  user=root
Jun  5 13:53:00 mail sshd\[31409\]: Failed password for root from 120.92.139.2 port 16366 ssh2
Jun  5 14:02:57 mail sshd\[31707\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.92.139.2  user=root
...

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Jun  5 09:11:26 firewall sshd[20146]: Failed password for root from 46.101.103.207 port 35882 ssh2
Jun  5 09:14:42 firewall sshd[20260]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.101.103.207  user=root
Jun  5 09:14:45 firewall sshd[20260]: Failed password for root from 46.101.103.207 port 39080 ssh2
...

$f2bV_matches

Jun  5 13:58:33 cloud sshd[18333]: Failed password for root from 139.155.21.186 port 40924 ssh2

2020-06-05T15:00:02.848201mail.broermann.family sshd[8069]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.15.62  user=root
2020-06-05T15:00:04.493841mail.broermann.family sshd[8069]: Failed password for root from 222.186.15.62 port 26360 ssh2
2020-06-05T15:00:02.848201mail.broermann.family sshd[8069]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.15.62  user=root
2020-06-05T15:00:04.493841mail.broermann.family sshd[8069]: Failed password for root from 222.186.15.62 port 26360 ssh2
2020-06-05T15:00:06.622525mail.broermann.family sshd[8069]: Failed password for root from 222.186.15.62 port 26360 ssh2
...

20 attempts against mh-misbehave-ban on tree

Jun  5 18:57:11 itv-usvr-01 sshd[31275]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.23.215  user=root
Jun  5 18:57:13 itv-usvr-01 sshd[31275]: Failed password for root from 188.166.23.215 port 52726 ssh2
Jun  5 19:01:53 itv-usvr-01 sshd[31418]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.23.215  user=root
Jun  5 19:01:56 itv-usvr-01 sshd[31418]: Failed password for root from 188.166.23.215 port 53838 ssh2
Jun  5 19:06:36 itv-usvr-01 sshd[31614]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.166.23.215  user=root
Jun  5 19:06:38 itv-usvr-01 sshd[31614]: Failed password for root from 188.166.23.215 port 54948 ssh2

Jun  5 15:03:55 OPSO sshd\[27339\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.53.20.179  user=root
Jun  5 15:03:57 OPSO sshd\[27339\]: Failed password for root from 106.53.20.179 port 38966 ssh2
Jun  5 15:09:41 OPSO sshd\[28481\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.53.20.179  user=root
Jun  5 15:09:42 OPSO sshd\[28481\]: Failed password for root from 106.53.20.179 port 44920 ssh2
Jun  5 15:11:33 OPSO sshd\[28993\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.53.20.179  user=root

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