SSH Brute-Force attacks

Time:     Fri Aug 28 03:47:53 2020 +0000
IP:       111.229.39.146 (CN/China/-)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Aug 28 03:27:30 ca-1-ams1 sshd[16012]: Invalid user postgres from 111.229.39.146 port 36508
Aug 28 03:27:32 ca-1-ams1 sshd[16012]: Failed password for invalid user postgres from 111.229.39.146 port 36508 ssh2
Aug 28 03:45:47 ca-1-ams1 sshd[16692]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.229.39.146  user=root
Aug 28 03:45:49 ca-1-ams1 sshd[16692]: Failed password for root from 111.229.39.146 port 35438 ssh2
Aug 28 03:47:52 ca-1-ams1 sshd[16746]: Invalid user mcserver from 111.229.39.146 port 53560

Aug 28 10:11:26 email sshd\[30582\]: Invalid user jenkins from 198.98.49.181
Aug 28 10:11:26 email sshd\[30584\]: Invalid user ec2-user from 198.98.49.181
Aug 28 10:11:26 email sshd\[30586\]: Invalid user oracle from 198.98.49.181
Aug 28 10:11:26 email sshd\[30583\]: Invalid user ubuntu from 198.98.49.181
Aug 28 10:11:26 email sshd\[30588\]: Invalid user test from 198.98.49.181
...

Port probing on unauthorized port 23

[2020-08-28 05:34:55] NOTICE[1185] chan_sip.c: Registration from '' failed for '144.217.79.194:54568' - Wrong password
[2020-08-28 05:34:55] SECURITY[1203] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-08-28T05:34:55.395-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="801",SessionID="0x7f10c4031b98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/144.217.79.194/54568",Challenge="52e309d8",ReceivedChallenge="52e309d8",ReceivedHash="333e035b732e62268677873b0a8cf789"
[2020-08-28 05:34:55] NOTICE[1185] chan_sip.c: Registration from '' failed for '144.217.79.194:54569' - Wrong password
[2020-08-28 05:34:55] SECURITY[1203] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-08-28T05:34:55.396-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="801",SessionID="0x7f10c44fdb78",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/144.217.79.194
...

1598586549 - 08/28/2020 05:49:09 Host: 14.245.106.93/14.245.106.93 Port: 445 TCP Blocked
...

Port probing on unauthorized port 445

Unauthorized connection attempt detected from IP address 121.61.153.187 to port 23 [T]

Port scanning [2 denied]

Icarus honeypot on github

Aug 28 12:31:19 ift sshd\[25423\]: Failed password for root from 222.186.175.217 port 33518 ssh2Aug 28 12:31:29 ift sshd\[25423\]: Failed password for root from 222.186.175.217 port 33518 ssh2Aug 28 12:31:33 ift sshd\[25423\]: Failed password for root from 222.186.175.217 port 33518 ssh2Aug 28 12:31:39 ift sshd\[25453\]: Failed password for root from 222.186.175.217 port 32398 ssh2Aug 28 12:32:01 ift sshd\[25462\]: Failed password for root from 222.186.175.217 port 60020 ssh2
...

srvr2: (mod_security) mod_security (id:920350) triggered by 206.253.224.75 (DE/-/-): 1 in the last 600 secs; Ports: *; Direction: inout; Trigger: LF_MODSEC; Logs: 2020/08/28 11:08:29 [error] 377966#0: *172733 [client 206.253.224.75] ModSecurity: Access denied with code 406 (phase 2). Matched "Operator `Rx' with parameter `^[\d.:]+$' against variable `REQUEST_HEADERS:Host'  [redacted] [file "/etc/modsecurity.d/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "718"] [id "920350"] [rev ""] [msg "Host header is a numeric IP address"] [redacted] [severity "4"] [ver "OWASP_CRS/3.3.0"] [maturity "0"] [accuracy "0"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "paranoia-level/1"] [tag "OWASP_CRS"] [tag "capec/1000/210/272"] [tag "PCI/6.5.10"] [redacted] [uri "/robots.txt"] [unique_id "159860570966.376346"] [ref "o0,14v160,14"], client: 206.253.224.75, [redacted] request: "GET /robots.txt HTTP/1.1" [redacted]

Aug 28 10:08:07 scw-6657dc sshd[2084]: Failed password for root from 112.85.42.181 port 8849 ssh2
Aug 28 10:08:07 scw-6657dc sshd[2084]: Failed password for root from 112.85.42.181 port 8849 ssh2
Aug 28 10:08:10 scw-6657dc sshd[2084]: Failed password for root from 112.85.42.181 port 8849 ssh2
...

Port scanning [2 denied]

Aug 28 15:39:03 dhoomketu sshd[2717181]: Invalid user bsp from 134.122.64.201 port 49418
Aug 28 15:39:03 dhoomketu sshd[2717181]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.122.64.201 
Aug 28 15:39:03 dhoomketu sshd[2717181]: Invalid user bsp from 134.122.64.201 port 49418
Aug 28 15:39:05 dhoomketu sshd[2717181]: Failed password for invalid user bsp from 134.122.64.201 port 49418 ssh2
Aug 28 15:42:31 dhoomketu sshd[2717313]: Invalid user pc from 134.122.64.201 port 57012
...