22/tcp 22/tcp 22/tcp...
[2019-06-24/28]9pkt,1pt.(tcp)

[Thu Jun 27 14:39:06.361499 2019] [:error] [pid 974:tid 140566475298560] [client 37.9.113.119:44351] [client 37.9.113.119] ModSecurity: Access denied with code 403 (phase 2). Pattern match "^[\\\\d.:]+$" at REQUEST_HEADERS:Host. [file "/etc/modsecurity/owasp-modsecurity-crs-3.1.1/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "792"] [id "920350"] [msg "Host header is a numeric IP address"] [data "103.27.207.197"] [severity "WARNING"] [ver "OWASP_CRS/3.1.1"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "OWASP_CRS/PROTOCOL_VIOLATION/IP_HOST"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A7"] [tag "PCI/6.5.10"] [hostname "103.27.207.197"] [uri "/"] [unique_id "XRRymk7jnz5MrDV2AHY-mQAAAAI"]
...

Jun 28 08:18:07 cac1d2 sshd\[17032\]: Invalid user admin from 185.232.67.11 port 55095
Jun 28 08:18:07 cac1d2 sshd\[17032\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.232.67.11
Jun 28 08:18:09 cac1d2 sshd\[17032\]: Failed password for invalid user admin from 185.232.67.11 port 55095 ssh2
...

Automatic report - Web App Attack

[Thu Jun 27 23:31:51.348411 2019] [:error] [pid 26623:tid 139946564880128] [client 27.50.165.111:1952] [client 27.50.165.111] ModSecurity: Access denied with code 403 (phase 2). Matched phrase "user-agent:" at REQUEST_HEADERS:User-Agent. [file "/etc/modsecurity/owasp-modsecurity-crs-3.1.1/rules/REQUEST-913-SCANNER-DETECTION.conf"] [line "56"] [id "913100"] [msg "Found User-Agent associated with security scanner"] [data "Matched Data: user-agent: found within REQUEST_HEADERS:User-Agent: user-agent:mozilla/4.0 (compatible; msie 6.0; windows nt 5.2; .net clr 1.0.3705"] [severity "CRITICAL"] [ver "OWASP_CRS/3.1.1"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-reputation-scanner"] [tag "OWASP_CRS/AUTOMATION/SECURITY_SCANNER"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A7"] [tag "PCI/6.5.10"] [hostname "103.27.207.197"] [uri "/"] [unique_id "XRTvd@6-KiAKW-D1K@AN8gAAAAU"]
[Thu Jun 27 23:31:51.458843 2019] [:error] [pid 26623:tid 139946459387648] [client 27.50.165.111:1952] [cli

Brute force SMTP login attempts.

188.138.122.18 - - [28/Jun/2019:10:30:42 -0400] "HEAD /wallet.dat HTTP/1.0" 404 222 "-" "-"

Jun 28 15:47:31 server postfix/smtpd[11018]: NOQUEUE: reject: RCPT from excellent.ppobmspays.com[5.133.66.146]: 554 5.7.1 Service unavailable; Client host [5.133.66.146] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=

Jun 28 15:52:24 mail sshd\[19423\]: Invalid user foo from 60.250.81.38 port 46846
Jun 28 15:52:24 mail sshd\[19423\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.250.81.38
Jun 28 15:52:27 mail sshd\[19423\]: Failed password for invalid user foo from 60.250.81.38 port 46846 ssh2
Jun 28 15:54:16 mail sshd\[19672\]: Invalid user git from 60.250.81.38 port 35850
Jun 28 15:54:16 mail sshd\[19672\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=60.250.81.38

port scan and connect, tcp 23 (telnet)

[Thu Jun 27 14:46:27.452875 2019] [:error] [pid 974:tid 140566293608192] [client 212.66.123.151:49916] [client 212.66.123.151] ModSecurity: Access denied with code 403 (phase 2). Pattern match "^[\\\\d.:]+$" at REQUEST_HEADERS:Host. [file "/etc/modsecurity/owasp-modsecurity-crs-3.1.1/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "792"] [id "920350"] [msg "Host header is a numeric IP address"] [data "103.27.207.197:80"] [severity "WARNING"] [ver "OWASP_CRS/3.1.1"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "OWASP_CRS/PROTOCOL_VIOLATION/IP_HOST"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A7"] [tag "PCI/6.5.10"] [hostname "103.27.207.197"] [uri "/"] [unique_id "XRR0U07jnz5MrDV2AHY-1gAAAA8"]
...

[Thu Jun 27 12:25:38.565576 2019] [:error] [pid 26865:tid 140527362074368] [client 141.8.132.35:59414] [client 141.8.132.35] ModSecurity: Access denied with code 403 (phase 2). Pattern match "^[\\\\d.:]+$" at REQUEST_HEADERS:Host. [file "/etc/modsecurity/owasp-modsecurity-crs-3.1.1/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "792"] [id "920350"] [msg "Host header is a numeric IP address"] [data "103.27.207.197"] [severity "WARNING"] [ver "OWASP_CRS/3.1.1"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "OWASP_CRS/PROTOCOL_VIOLATION/IP_HOST"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A7"] [tag "PCI/6.5.10"] [hostname "103.27.207.197"] [uri "/"] [unique_id "XRRTUhlQuTljWBroxg@h6QAAAAk"]
...

Jun 28 11:31:03 plusreed sshd[22690]: Invalid user wpyan from 36.67.120.234
...

[Thu Jun 27 13:32:03.059773 2019] [:error] [pid 26865:tid 140527345288960] [client 186.0.210.66:57410] [client 186.0.210.66] ModSecurity: Access denied with code 403 (phase 2). Pattern match "^[\\\\d.:]+$" at REQUEST_HEADERS:Host. [file "/etc/modsecurity/owasp-modsecurity-crs-3.1.1/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "792"] [id "920350"] [msg "Host header is a numeric IP address"] [data "103.27.207.197:80"] [severity "WARNING"] [ver "OWASP_CRS/3.1.1"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "OWASP_CRS/PROTOCOL_VIOLATION/IP_HOST"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A7"] [tag "PCI/6.5.10"] [hostname "103.27.207.197"] [uri "/"] [unique_id "XRRi4xlQuTljWBroxg@lqQAAAAs"]
...

1561608271 - 06/27/2019 11:04:31 Host: 103-27-119-58.frontiir.com/103.27.119.58 Port: 23 TCP Blocked
...