Honeypot attack, port: 81, PTR: 118-163-191-109.HINET-IP.hinet.net.

firewall-block, port(s): 3255/tcp, 36209/tcp, 40966/tcp, 49430/tcp, 64857/tcp

firewall-block, port(s): 2323/tcp

Honeypot attack, port: 81, PTR: host-197.51.193.194.tedata.net.

Sep  5 01:14:06 root sshd[30652]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=5.ip-54-38-187.eu  user=root
Sep  5 01:14:08 root sshd[30652]: Failed password for root from 54.38.187.5 port 51250 ssh2
...

Invalid user admin from 194.180.224.130 port 43700

Sep  4 19:44:17 eventyay sshd[12113]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=92.222.93.104
Sep  4 19:44:20 eventyay sshd[12113]: Failed password for invalid user oracle from 92.222.93.104 port 41548 ssh2
Sep  4 19:47:53 eventyay sshd[12215]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=92.222.93.104
...

2020-09-04T23:19:52.093584shield sshd\[22082\]: Invalid user admin from 141.98.10.214 port 43725
2020-09-04T23:19:52.102364shield sshd\[22082\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=141.98.10.214
2020-09-04T23:19:53.537466shield sshd\[22082\]: Failed password for invalid user admin from 141.98.10.214 port 43725 ssh2
2020-09-04T23:20:33.319213shield sshd\[22224\]: Invalid user admin from 141.98.10.214 port 41057
2020-09-04T23:20:33.328245shield sshd\[22224\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=141.98.10.214

[2020-09-04 14:16:15] NOTICE[1194][C-000006b8] chan_sip.c: Call from '' (62.173.149.88:56458) to extension '145501148943147001' rejected because extension not found in context 'public'.
[2020-09-04 14:16:15] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-04T14:16:15.574-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="145501148943147001",SessionID="0x7f2ddc036c38",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.149.88/56458",ACLName="no_extension_match"
[2020-09-04 14:16:50] NOTICE[1194][C-000006bb] chan_sip.c: Call from '' (62.173.149.88:57680) to extension '145601148943147001' rejected because extension not found in context 'public'.
[2020-09-04 14:16:50] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-04T14:16:50.942-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="145601148943147001",SessionID="0x7f2ddc1b7848",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddres
...

Sep  4 18:50:20 mellenthin postfix/smtpd[30950]: NOQUEUE: reject: RCPT from unknown[42.82.68.176]: 554 5.7.1 Service unavailable; Client host [42.82.68.176] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/42.82.68.176 / https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=<[42.82.68.176]>

Sep  5 00:40:07 sd-69548 sshd[755217]: Unable to negotiate with 112.85.42.173 port 23352: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1 [preauth]
Sep  5 01:17:12 sd-69548 sshd[757731]: Unable to negotiate with 112.85.42.173 port 11297: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1 [preauth]
...

Brute Force

[N10.H2.VM2] Port Scanner Detected Blocked by UFW

"XSS Attack Detected via libinjection - Matched Data: XSS data found within ARGS_NAMES:

Sep  4 15:18:44 logopedia-1vcpu-1gb-nyc1-01 sshd[88857]: Invalid user hug from 118.25.128.221 port 45238
...