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: Korea, Republic of

Internet Service Provider: LG Dacom Corporation

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
Type Details Datetime
attack
Unauthorized connection attempt detected from IP address 121.66.36.138 to port 80 [J]
2020-02-02 10:03:46
attack
Unauthorized connection attempt detected from IP address 121.66.36.138 to port 80
2020-01-02 21:57:11
attack
Unauthorized connection attempt detected from IP address 121.66.36.138 to port 8080
2020-01-01 02:27:40
attack
1574348193 - 11/21/2019 15:56:33 Host: 121.66.36.138/121.66.36.138 Port: 6001 TCP Blocked
2019-11-21 23:09:58
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:

; <<>> DiG 9.10.3-P4-Ubuntu <<>> 121.66.36.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 24443
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			10800	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019112003 1800 900 604800 86400

;; Query time: 1 msec
;; SERVER: 100.100.2.136#53(100.100.2.136)
;; WHEN: Thu Nov 21 23:12:28 CST 2019
;; MSG SIZE  rcvd: 117

Host info
Host 138.36.66.121.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.36.66.121.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
182.75.216.74 attackspambots
Mar 27 16:36:51 master sshd[26085]: Failed password for invalid user lbp from 182.75.216.74 port 14182 ssh2
Mar 27 16:46:16 master sshd[26138]: Failed password for invalid user sgs from 182.75.216.74 port 11860 ssh2
Mar 27 16:50:31 master sshd[26140]: Failed password for invalid user ayw from 182.75.216.74 port 14367 ssh2
Mar 27 16:54:42 master sshd[26146]: Failed password for invalid user gor from 182.75.216.74 port 8223 ssh2
Mar 27 16:58:57 master sshd[26151]: Failed password for invalid user kif from 182.75.216.74 port 53414 ssh2
2020-03-27 23:09:36
89.163.209.26 attackspambots
Invalid user kaile from 89.163.209.26 port 50350
2020-03-27 23:41:16
119.96.175.244 attack
SSH Brute-Forcing (server1)
2020-03-27 23:22:53
87.27.20.201 attack
SSH login attempts.
2020-03-27 23:30:29
216.239.32.21 attack
SSH login attempts.
2020-03-27 23:09:06
197.36.239.206 attackbotsspam
SSH login attempts.
2020-03-27 22:58:14
80.211.78.82 attack
Mar 27 14:57:03 roki sshd[20124]: Invalid user ygi from 80.211.78.82
Mar 27 14:57:03 roki sshd[20124]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.78.82
Mar 27 14:57:06 roki sshd[20124]: Failed password for invalid user ygi from 80.211.78.82 port 42450 ssh2
Mar 27 15:07:13 roki sshd[20859]: Invalid user oqb from 80.211.78.82
Mar 27 15:07:13 roki sshd[20859]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.78.82
...
2020-03-27 23:00:29
42.114.242.102 attack
Unauthorized connection attempt from IP address 42.114.242.102 on Port 445(SMB)
2020-03-27 23:00:57
188.173.97.144 attackspam
Mar 27 15:55:01 ns381471 sshd[6419]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=188.173.97.144
Mar 27 15:55:03 ns381471 sshd[6419]: Failed password for invalid user or from 188.173.97.144 port 52100 ssh2
2020-03-27 23:21:51
198.27.82.155 attackbots
Mar 27 15:20:25 [HOSTNAME] sshd[4354]: Invalid user xc from 198.27.82.155 port 51047
Mar 27 15:20:25 [HOSTNAME] sshd[4354]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.27.82.155
Mar 27 15:20:27 [HOSTNAME] sshd[4354]: Failed password for invalid user xc from 198.27.82.155 port 51047 ssh2
...
2020-03-27 23:15:54
106.13.81.181 attack
Invalid user qiuliuyang from 106.13.81.181 port 47594
2020-03-27 23:47:27
106.13.87.170 attackspambots
Mar 25 21:27:22 itv-usvr-01 sshd[22765]: Invalid user username from 106.13.87.170
2020-03-27 23:46:54
47.93.159.143 attackbotsspam
SSH login attempts.
2020-03-27 23:43:05
14.98.4.82 attack
Mar 27 16:41:54 master sshd[26115]: Failed password for invalid user phl from 14.98.4.82 port 3390 ssh2
Mar 27 17:03:14 master sshd[26173]: Failed password for invalid user lyu from 14.98.4.82 port 50019 ssh2
2020-03-27 23:34:17
222.186.30.57 attackbots
Mar 27 16:18:31 server sshd[15939]: Failed password for root from 222.186.30.57 port 21706 ssh2
Mar 27 16:18:35 server sshd[15939]: Failed password for root from 222.186.30.57 port 21706 ssh2
Mar 27 16:18:38 server sshd[15939]: Failed password for root from 222.186.30.57 port 21706 ssh2
2020-03-27 23:20:56

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