Invalid user shoutcast from 88.156.122.72 port 39158

[Sat Mar 21 10:50:02.596179 2020] [:error] [pid 8203:tid 140035788281600] [client 173.252.87.43:57758] [client 173.252.87.43] ModSecurity: Access denied with code 403 (phase 2). Match of "eq 0" against "&REQUEST_HEADERS:Transfer-Encoding" required. [file "/etc/modsecurity/owasp-modsecurity-crs-3.2.0/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "202"] [id "920171"] [msg "GET or HEAD Request with Transfer-Encoding."] [data "1"] [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/PROTOCOL_VIOLATION/INVALID_HREQ"] [tag "CAPEC-272"] [hostname "karangploso.jatim.bmkg.go.id"] [uri "/OneSignalSDKWorker.js"] [unique_id "XnWOweFFbXliLltByaHWpQAAAAE"], referer: https://karangploso.jatim.bmkg.go.id/OneSignalSDKWorker.js
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2020-03-20 22:49:48 H=(qEvYpSQxh) [60.169.95.112]:57990 I=[192.147.25.65]:25 F= rejected RCPT <2129823216@qq.com>: RBL: found in thrukfz5b56tq6xao6odgdyjrq.zen.dq.spamhaus.net (127.0.0.2, 127.0.0.11, 127.0.0.4, 127.0.0.3) (https://www.spamhaus.org/sbl/query/SBL468331)
2020-03-20 22:49:51 dovecot_login authenticator failed for (feG9AG) [60.169.95.112]:58303 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=hkcdtsradxes@lerctr.org)
2020-03-20 22:50:01 dovecot_login authenticator failed for (dwezN6Ts) [60.169.95.112]:58616 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=hkcdtsradxes@lerctr.org)
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Invalid user work from 157.230.160.113 port 36108

Mar 20 22:03:17 server1 sshd\[31092\]: Invalid user ftpuser from 200.29.100.5
Mar 20 22:03:17 server1 sshd\[31092\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.29.100.5 
Mar 20 22:03:20 server1 sshd\[31092\]: Failed password for invalid user ftpuser from 200.29.100.5 port 57630 ssh2
Mar 20 22:07:43 server1 sshd\[32312\]: Invalid user rtholden from 200.29.100.5
Mar 20 22:07:43 server1 sshd\[32312\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.29.100.5 
...

Mar 21 09:09:45 SilenceServices sshd[29159]: Failed password for root from 218.92.0.158 port 3878 ssh2
Mar 21 09:09:55 SilenceServices sshd[29159]: Failed password for root from 218.92.0.158 port 3878 ssh2
Mar 21 09:09:59 SilenceServices sshd[29159]: Failed password for root from 218.92.0.158 port 3878 ssh2
Mar 21 09:09:59 SilenceServices sshd[29159]: error: maximum authentication attempts exceeded for root from 218.92.0.158 port 3878 ssh2 [preauth]

Unauthorized connection attempt detected from IP address 218.61.178.35 to port 5555 [T]

Mar 20 22:12:26 php1 sshd\[1232\]: Invalid user irene from 35.236.69.165
Mar 20 22:12:26 php1 sshd\[1232\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=35.236.69.165
Mar 20 22:12:28 php1 sshd\[1232\]: Failed password for invalid user irene from 35.236.69.165 port 45534 ssh2
Mar 20 22:16:20 php1 sshd\[1648\]: Invalid user angie from 35.236.69.165
Mar 20 22:16:20 php1 sshd\[1648\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=35.236.69.165

firewall-block, port(s): 25/tcp

ET CINS Active Threat Intelligence Poor Reputation IP group 34 - port: 389 proto: UDP cat: Misc Attack

Mar 21 10:07:01 www sshd\[87270\]: Invalid user gitlab-runner from 188.173.97.144
Mar 21 10:07:01 www sshd\[87270\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.173.97.144
Mar 21 10:07:03 www sshd\[87270\]: Failed password for invalid user gitlab-runner from 188.173.97.144 port 53722 ssh2
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Mar 21 07:32:49 mail sshd\[1503\]: Invalid user roselani from 162.251.151.201
Mar 21 07:32:49 mail sshd\[1503\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=162.251.151.201
Mar 21 07:32:51 mail sshd\[1503\]: Failed password for invalid user roselani from 162.251.151.201 port 42042 ssh2
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Mar 21 08:04:40 localhost sshd[91947]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.92  user=root
Mar 21 08:04:42 localhost sshd[91947]: Failed password for root from 222.186.190.92 port 6914 ssh2
Mar 21 08:04:46 localhost sshd[91947]: Failed password for root from 222.186.190.92 port 6914 ssh2
Mar 21 08:04:40 localhost sshd[91947]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.92  user=root
Mar 21 08:04:42 localhost sshd[91947]: Failed password for root from 222.186.190.92 port 6914 ssh2
Mar 21 08:04:46 localhost sshd[91947]: Failed password for root from 222.186.190.92 port 6914 ssh2
Mar 21 08:04:40 localhost sshd[91947]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.92  user=root
Mar 21 08:04:42 localhost sshd[91947]: Failed password for root from 222.186.190.92 port 6914 ssh2
Mar 21 08:04:46 localhost sshd[91947]: Failed 
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k+ssh-bruteforce

Attempt to attack host OS, exploiting network vulnerabilities, on 21-03-2020 03:50:15.