[Fri Mar 27 10:54:14.370375 2020] [:error] [pid 12074:tid 140635502851840] [client 114.119.166.77:37860] [client 114.119.166.77] ModSecurity: Access denied with code 403 (phase 2). Pattern match "^[\\\\d.:]+$" at REQUEST_HEADERS:Host. [file "/etc/modsecurity/owasp-modsecurity-crs-3.2.0/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "696"] [id "920350"] [msg "Host header is a numeric IP address"] [data "103.27.207.197"] [severity "WARNING"] [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/IP_HOST"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A7"] [tag "PCI/6.5.10"] [hostname "karangploso.jatim.bmkg.go.id"] [uri "/index.php/prakiraan-iklim/agroklimatologi/kalender-tanam/3255-kalender-tanam-katam-terpadu-pulau-sumatra/kalender-tanam-katam-terpadu-provinsi-aceh/kalender-tanam-katam-terpadu-kabupaten-aceh-tenggara-provinsi-aceh/kalender-tanam-katam-terpadu-kecamatan
...

Mar 27 05:36:31 mail postfix/smtpd\[7615\]: warning: unknown\[141.98.80.147\]: SASL PLAIN authentication failed: \
Mar 27 05:36:49 mail postfix/smtpd\[7467\]: warning: unknown\[141.98.80.147\]: SASL PLAIN authentication failed: \
Mar 27 05:37:14 mail postfix/smtpd\[7615\]: warning: unknown\[141.98.80.147\]: SASL PLAIN authentication failed: \
Mar 27 06:17:33 mail postfix/smtpd\[9040\]: warning: unknown\[141.98.80.147\]: SASL PLAIN authentication failed: \

2020-03-27T04:46:01.981393abusebot-6.cloudsearch.cf sshd[3738]: Invalid user usuario from 139.59.31.205 port 24290
2020-03-27T04:46:01.989975abusebot-6.cloudsearch.cf sshd[3738]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.31.205
2020-03-27T04:46:01.981393abusebot-6.cloudsearch.cf sshd[3738]: Invalid user usuario from 139.59.31.205 port 24290
2020-03-27T04:46:03.712736abusebot-6.cloudsearch.cf sshd[3738]: Failed password for invalid user usuario from 139.59.31.205 port 24290 ssh2
2020-03-27T04:47:57.313870abusebot-6.cloudsearch.cf sshd[3836]: Invalid user castis from 139.59.31.205 port 38294
2020-03-27T04:47:57.323735abusebot-6.cloudsearch.cf sshd[3836]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.31.205
2020-03-27T04:47:57.313870abusebot-6.cloudsearch.cf sshd[3836]: Invalid user castis from 139.59.31.205 port 38294
2020-03-27T04:47:59.307215abusebot-6.cloudsearch.cf sshd[3836]: Failed
...

2020-03-27T06:24:11.166882librenms sshd[10612]: Invalid user support from 131.255.227.166 port 40800
2020-03-27T06:24:13.273590librenms sshd[10612]: Failed password for invalid user support from 131.255.227.166 port 40800 ssh2
2020-03-27T06:26:16.468216librenms sshd[11088]: Invalid user admin from 131.255.227.166 port 54878
...

Mar 27 05:43:49 silence02 sshd[15176]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.46.16
Mar 27 05:43:52 silence02 sshd[15176]: Failed password for invalid user webadmin from 51.83.46.16 port 40476 ssh2
Mar 27 05:45:47 silence02 sshd[15265]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.46.16

Mar 26 23:54:14 Tower sshd[394]: Connection from 181.115.156.59 port 45172 on 192.168.10.220 port 22 rdomain ""
Mar 26 23:54:15 Tower sshd[394]: Invalid user jfr from 181.115.156.59 port 45172
Mar 26 23:54:16 Tower sshd[394]: error: Could not get shadow information for NOUSER
Mar 26 23:54:16 Tower sshd[394]: Failed password for invalid user jfr from 181.115.156.59 port 45172 ssh2
Mar 26 23:54:16 Tower sshd[394]: Received disconnect from 181.115.156.59 port 45172:11: Bye Bye [preauth]
Mar 26 23:54:16 Tower sshd[394]: Disconnected from invalid user jfr 181.115.156.59 port 45172 [preauth]

Mar 27 05:41:57 markkoudstaal sshd[30030]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.63.174.149
Mar 27 05:41:59 markkoudstaal sshd[30030]: Failed password for invalid user yik from 14.63.174.149 port 55307 ssh2
Mar 27 05:46:25 markkoudstaal sshd[30590]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.63.174.149

Mar 27 04:46:46 mail.srvfarm.net postfix/smtpd[3702190]: NOQUEUE: reject: RCPT from 50-196-126-233-static.hfc.comcastbusiness.net[50.196.126.233]: 554 5.7.1 Service unavailable; Client host [50.196.126.233] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?50.196.126.233; from= to= proto=ESMTP helo=<50-196-126-233-static.hfc.comcastbusiness.net>
Mar 27 04:46:46 mail.srvfarm.net postfix/smtpd[3702190]: NOQUEUE: reject: RCPT from 50-196-126-233-static.hfc.comcastbusiness.net[50.196.126.233]: 554 5.7.1 Service unavailable; Client host [50.196.126.233] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?50.196.126.233; from= to= proto=ESMTP helo=<50-196-126-233-static.hfc.comcastbusiness.net>
Mar 27 04:46:47 mail.srvfarm.net postfix/smtpd[3702190]: NOQUEUE: reject: RCPT from 50-196-126-233-static.hfc.comcastbusiness.net[50.196.126.233]: 554

Mar 27 05:23:23 eventyay sshd[6624]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.142.118
Mar 27 05:23:25 eventyay sshd[6624]: Failed password for invalid user bod from 111.229.142.118 port 33678 ssh2
Mar 27 05:31:35 eventyay sshd[6891]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.142.118
...

$f2bV_matches

$f2bV_matches

Mar 27 05:51:54 sso sshd[25197]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=93.63.55.73
Mar 27 05:51:55 sso sshd[25197]: Failed password for invalid user jdy from 93.63.55.73 port 59662 ssh2
...

Mar 27 04:57:06 www_kotimaassa_fi sshd[5354]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.103.87.101
Mar 27 04:57:08 www_kotimaassa_fi sshd[5354]: Failed password for invalid user rmu from 62.103.87.101 port 44789 ssh2
...

20 attempts against mh-ssh on cloud

Unauthorized connection attempt detected from IP address 110.5.97.20 to port 445