SSH Bruteforce Attempt (failed auth)

Aug  9 05:49:16 sshgateway sshd\[18726\]: Invalid user default from 94.23.218.10
Aug  9 05:49:16 sshgateway sshd\[18726\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ns207979.ovh.net
Aug  9 05:49:18 sshgateway sshd\[18726\]: Failed password for invalid user default from 94.23.218.10 port 51694 ssh2

Aug  9 05:49:19 icecube postfix/smtpd[63369]: NOQUEUE: reject: RCPT from unknown[49.81.171.212]: 554 5.7.1 Service unavailable; Client host [49.81.171.212] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/49.81.171.212 / https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=

ET CINS Active Threat Intelligence Poor Reputation IP group 65 - port: 15008 proto: tcp cat: Misc Attackbytes: 60

web-1 [ssh_2] SSH Attack

Aug  9 07:51:46 lukav-desktop sshd\[5002\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=99.184.69.177  user=root
Aug  9 07:51:48 lukav-desktop sshd\[5002\]: Failed password for root from 99.184.69.177 port 55208 ssh2
Aug  9 07:55:47 lukav-desktop sshd\[13077\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=99.184.69.177  user=root
Aug  9 07:55:49 lukav-desktop sshd\[13077\]: Failed password for root from 99.184.69.177 port 39648 ssh2
Aug  9 07:59:37 lukav-desktop sshd\[20499\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=99.184.69.177  user=root

Aug  9 07:07:49 lnxmail61 sshd[30289]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.56.9.9

Unauthorized connection attempt detected from IP address 118.43.14.94 to port 9530

Aug  9 11:08:46 roki-contabo sshd\[18368\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.182.35  user=root
Aug  9 11:08:48 roki-contabo sshd\[18368\]: Failed password for root from 51.178.182.35 port 35212 ssh2
Aug  9 11:23:21 roki-contabo sshd\[18664\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.182.35  user=root
Aug  9 11:23:23 roki-contabo sshd\[18664\]: Failed password for root from 51.178.182.35 port 56518 ssh2
Aug  9 11:27:07 roki-contabo sshd\[18790\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.182.35  user=root
...

SSH auth scanning - multiple failed logins

2020-08-09T07:02:21.358204abusebot-8.cloudsearch.cf sshd[16123]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.231.164.168  user=root
2020-08-09T07:02:22.438206abusebot-8.cloudsearch.cf sshd[16123]: Failed password for root from 111.231.164.168 port 60890 ssh2
2020-08-09T07:04:57.275604abusebot-8.cloudsearch.cf sshd[16201]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.231.164.168  user=root
2020-08-09T07:04:59.103752abusebot-8.cloudsearch.cf sshd[16201]: Failed password for root from 111.231.164.168 port 33168 ssh2
2020-08-09T07:07:28.080982abusebot-8.cloudsearch.cf sshd[16263]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.231.164.168  user=root
2020-08-09T07:07:29.973868abusebot-8.cloudsearch.cf sshd[16263]: Failed password for root from 111.231.164.168 port 33678 ssh2
2020-08-09T07:10:00.937246abusebot-8.cloudsearch.cf sshd[16284]: pam_unix(sshd:
...

Aug  9 06:48:57 venus kernel: [136041.664264] [UFW BLOCK] IN=eth0 OUT= MAC=96:00:00:66:8f:ed:d2:74:7f:6e:37:e3:08:00 SRC=27.78.120.32 DST=78.47.70.226 LEN=40 TOS=0x00 PREC=0x00 TTL=45 ID=11950 PROTO=TCP SPT=56901 DPT=85 WINDOW=11181 RES=0x00 SYN URGP=0

[Sun Aug 09 10:48:33.703347 2020] [:error] [pid 20571:tid 140480058205952] [client 5.255.253.103:41932] [client 5.255.253.103] 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 "103.27.207.197"] [uri "/"] [unique_id "Xy9yEaCizRNKE7Z79YlzxQAAAcI"]
...

SSH Brute Force

Aug  9 11:32:19 nas sshd[17529]: Failed password for root from 222.186.173.201 port 6060 ssh2
Aug  9 11:32:23 nas sshd[17529]: Failed password for root from 222.186.173.201 port 6060 ssh2
Aug  9 11:32:26 nas sshd[17529]: Failed password for root from 222.186.173.201 port 6060 ssh2
Aug  9 11:32:29 nas sshd[17529]: Failed password for root from 222.186.173.201 port 6060 ssh2
...