Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: unknown

Region: unknown

Country: Japan

Internet Service Provider: Microsoft Corporation

Hostname: unknown

Organization: unknown

Usage Type: Data Center/Web Hosting/Transit

Comments:
Type Details Datetime
attackspambots
Fail2Ban Ban Triggered
2020-05-31 08:27:46
attackbotsspam
May 28 09:16:55 ns382633 sshd\[30806\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=13.78.37.243  user=root
May 28 09:16:57 ns382633 sshd\[30806\]: Failed password for root from 13.78.37.243 port 55290 ssh2
May 28 09:17:03 ns382633 sshd\[30856\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=13.78.37.243  user=root
May 28 09:17:05 ns382633 sshd\[30856\]: Failed password for root from 13.78.37.243 port 42390 ssh2
May 28 09:17:10 ns382633 sshd\[30858\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=13.78.37.243  user=root
2020-05-28 15:26:52
attackspam
Unauthorized connection attempt detected from IP address 13.78.37.243 to port 22 [T]
2020-05-25 01:15:22
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 13.78.37.243
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 6958
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;13.78.37.243.			IN	A

;; AUTHORITY SECTION:
.			538	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020052400 1800 900 604800 86400

;; Query time: 107 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon May 25 01:15:15 CST 2020
;; MSG SIZE  rcvd: 116
Host info
Host 243.37.78.13.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 243.37.78.13.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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189.91.3.194 attackbots
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191.253.44.191 attackspam
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2019-08-19 12:09:12
191.53.58.162 attackbotsspam
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2019-08-19 12:30:23
191.53.222.11 attackbots
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2019-08-19 12:45:56
189.90.209.238 attackbots
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2019-08-19 12:44:16
219.143.144.130 attackbots
Aug 18 18:26:29 web1 postfix/smtpd[20167]: warning: unknown[219.143.144.130]: SASL LOGIN authentication failed: authentication failure
...
2019-08-19 12:05:12
189.91.3.154 attack
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2019-08-19 12:43:55
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187.85.212.57 attack
SASL PLAIN auth failed: ruser=...
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191.53.59.86 attack
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2019-08-19 12:29:44
191.53.220.235 attack
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2019-08-19 12:20:44
191.53.248.162 attack
SASL PLAIN auth failed: ruser=...
2019-08-19 12:15:25

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