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: Hong Kong

Internet Service Provider: Hong Kong Telecommunications (HKT) Limited

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
Type Details Datetime
attackspambots
May  4 14:04:56 webhost01 sshd[18065]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=42.3.51.73
May  4 14:04:58 webhost01 sshd[18065]: Failed password for invalid user user from 42.3.51.73 port 23646 ssh2
...
2020-05-04 15:19:06
attackbots
5x Failed Password
2020-05-03 22:02:28
attack
2020-04-23T03:45:12.750686ionos.janbro.de sshd[53096]: Invalid user ftpuser from 42.3.51.73 port 63964
2020-04-23T03:45:14.474831ionos.janbro.de sshd[53096]: Failed password for invalid user ftpuser from 42.3.51.73 port 63964 ssh2
2020-04-23T03:48:24.418605ionos.janbro.de sshd[53119]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=42.3.51.73  user=root
2020-04-23T03:48:26.032988ionos.janbro.de sshd[53119]: Failed password for root from 42.3.51.73 port 11280 ssh2
2020-04-23T03:51:36.945817ionos.janbro.de sshd[53126]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=42.3.51.73  user=root
2020-04-23T03:51:38.584936ionos.janbro.de sshd[53126]: Failed password for root from 42.3.51.73 port 13610 ssh2
2020-04-23T03:54:56.263293ionos.janbro.de sshd[53135]: Invalid user rl from 42.3.51.73 port 15938
2020-04-23T03:54:56.338530ionos.janbro.de sshd[53135]: pam_unix(sshd:auth): authentication failure; logname= uid=0 eu
...
2020-04-23 13:17:24
attack
Unauthorised connection attempt detected at AUO MAIN. System is sshd. Protected by AUO Stack Web Application Firewall (WAF)
2020-04-19 01:23:48
attack
Tried sshing with brute force.
2020-04-18 02:37:31
Comments on same subnet:
IP Type Details Datetime
42.3.51.114 attackspambots
Spam comment : https://www.alemprint.ru/uslugi/pechat-interernaya 
https://www.alemprint.ru/uslugi/shirokoformatnaya-pechat 
https://www.alemprint.ru/uslugi/pechat-bannerov 
https://www.alemprint.ru/uslugi/pechat-na-oboyah 
https://www.alemprint.ru/uslugi/pechat-na-setke 
https://www.grandprint.su/ https://www.grandprint.su/ 
https://www.alemprint.ru/uslugi/pechat-litogo-bannera 
https://www.alemprint.ru/uslugi/press-wall 
https://www.alemprint.ru/uslugi/pechat-na-plenke 
https://www.alemprint.ru/ https://www.alemprint.ru/
2020-07-29 06:26:26
42.3.51.30 attackspam
2020-04-08T07:34:05.724861upcloud.m0sh1x2.com sshd[25316]: Invalid user dasusrl from 42.3.51.30 port 58698
2020-04-08 15:36:08
42.3.51.30 attackbots
$f2bV_matches
2020-03-31 12:10:52
42.3.51.30 attackspam
2020-03-19 UTC: (30x) - cpaneleximfilter,diego,info,infusion-stoked,lusifen,mysql,odoo,root(21x),ubuntu,xulei
2020-03-20 17:55:10
42.3.51.30 attackbots
Mar 19 15:09:00 OPSO sshd\[3490\]: Invalid user qlu from 42.3.51.30 port 49596
Mar 19 15:09:00 OPSO sshd\[3490\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=42.3.51.30
Mar 19 15:09:02 OPSO sshd\[3490\]: Failed password for invalid user qlu from 42.3.51.30 port 49596 ssh2
Mar 19 15:15:18 OPSO sshd\[4747\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=42.3.51.30  user=root
Mar 19 15:15:20 OPSO sshd\[4747\]: Failed password for root from 42.3.51.30 port 33098 ssh2
2020-03-19 23:00:09
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 42.3.51.73
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 9291
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			580	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020041702 1800 900 604800 86400

;; Query time: 101 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Apr 18 02:37:27 CST 2020
;; MSG SIZE  rcvd: 114
Host info
73.51.3.42.in-addr.arpa domain name pointer 42-3-51-073.static.netvigator.com.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
73.51.3.42.in-addr.arpa	name = 42-3-51-073.static.netvigator.com.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
223.247.129.84 attackspambots
Feb 10 10:36:41 ws19vmsma01 sshd[175730]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.247.129.84
Feb 10 10:36:42 ws19vmsma01 sshd[175730]: Failed password for invalid user gkd from 223.247.129.84 port 58588 ssh2
...
2020-02-11 05:03:47
122.51.113.137 attackbots
Unauthorized SSH login attempts
2020-02-11 05:30:28
78.188.151.201 attackbots
MultiHost/MultiPort Probe, Scan, Hack -
2020-02-11 05:33:10
210.223.193.10 attackspambots
Honeypot attack, port: 81, PTR: PTR record not found
2020-02-11 05:02:02
198.108.66.83 attackspam
Fail2Ban Ban Triggered
2020-02-11 05:23:37
14.161.19.132 attackspambots
445/tcp 445/tcp
[2020-01-13/02-10]2pkt
2020-02-11 05:23:52
80.240.100.26 attack
Honeypot attack, port: 445, PTR: PTR record not found
2020-02-11 05:25:32
115.159.154.49 attackbotsspam
Feb 10 20:16:27 sso sshd[3142]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=115.159.154.49
Feb 10 20:16:29 sso sshd[3142]: Failed password for invalid user wua from 115.159.154.49 port 56940 ssh2
...
2020-02-11 05:16:14
42.114.196.178 attack
Honeypot attack, port: 445, PTR: PTR record not found
2020-02-11 05:09:19
103.53.45.74 attackbots
Port probing on unauthorized port 445
2020-02-11 04:59:05
103.101.233.21 attackbots
445/tcp 445/tcp
[2020-01-31/02-10]2pkt
2020-02-11 05:31:01
122.51.231.49 attackbots
Feb 10 14:36:27 serwer sshd\[2494\]: Invalid user izn from 122.51.231.49 port 50448
Feb 10 14:36:27 serwer sshd\[2494\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.51.231.49
Feb 10 14:36:29 serwer sshd\[2494\]: Failed password for invalid user izn from 122.51.231.49 port 50448 ssh2
...
2020-02-11 05:19:01
221.161.241.178 attackbots
Honeypot attack, port: 5555, PTR: PTR record not found
2020-02-11 05:05:06
78.195.178.119 attack
$f2bV_matches
2020-02-11 05:28:25
198.108.66.80 attack
trying to access non-authorized port
2020-02-11 05:37:36

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