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: China

Internet Service Provider: Tencent Cloud Computing (Beijing) Co. Ltd

Hostname: unknown

Organization: unknown

Usage Type: Data Center/Web Hosting/Transit

Comments:
Type Details Datetime
attackbotsspam
fail2ban detected bruce force on ssh iptables
2020-10-12 07:55:12
attackspambots
SSH login attempts.
2020-10-12 00:12:02
attackspambots
Lines containing failures of 81.68.239.140
Oct  6 17:24:45 mellenthin sshd[30324]: User r.r from 81.68.239.140 not allowed because not listed in AllowUsers
Oct  6 17:24:45 mellenthin sshd[30324]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.68.239.140  user=r.r
Oct  6 17:24:47 mellenthin sshd[30324]: Failed password for invalid user r.r from 81.68.239.140 port 40446 ssh2
Oct  6 17:24:47 mellenthin sshd[30324]: Received disconnect from 81.68.239.140 port 40446:11: Bye Bye [preauth]
Oct  6 17:24:47 mellenthin sshd[30324]: Disconnected from invalid user r.r 81.68.239.140 port 40446 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=81.68.239.140
2020-10-11 16:10:42
attackspam
Oct 10 21:51:07 ip-172-31-61-156 sshd[31911]: Invalid user apache2 from 81.68.239.140
Oct 10 21:51:09 ip-172-31-61-156 sshd[31911]: Failed password for invalid user apache2 from 81.68.239.140 port 60266 ssh2
Oct 10 21:51:07 ip-172-31-61-156 sshd[31911]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.68.239.140
Oct 10 21:51:07 ip-172-31-61-156 sshd[31911]: Invalid user apache2 from 81.68.239.140
Oct 10 21:51:09 ip-172-31-61-156 sshd[31911]: Failed password for invalid user apache2 from 81.68.239.140 port 60266 ssh2
...
2020-10-11 09:29:21
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 81.68.239.140
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32150
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			547	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020101002 1800 900 604800 86400

;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Oct 11 09:29:13 CST 2020
;; MSG SIZE  rcvd: 117
Host info
Host 140.239.68.81.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 140.239.68.81.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
190.39.29.11 attackbots
Unauthorized connection attempt from IP address 190.39.29.11 on Port 445(SMB)
2020-07-13 05:49:36
128.199.123.0 attackbotsspam
2020-07-12T21:05:59.636389shield sshd\[7326\]: Invalid user arvind from 128.199.123.0 port 56144
2020-07-12T21:05:59.645540shield sshd\[7326\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.123.0
2020-07-12T21:06:02.004448shield sshd\[7326\]: Failed password for invalid user arvind from 128.199.123.0 port 56144 ssh2
2020-07-12T21:09:21.775318shield sshd\[8005\]: Invalid user admin from 128.199.123.0 port 52428
2020-07-12T21:09:21.783553shield sshd\[8005\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.123.0
2020-07-13 06:05:14
27.154.66.104 attackbots
[ssh] SSH attack
2020-07-13 05:46:42
112.35.62.225 attackspam
Jul 12 18:49:27 firewall sshd[23519]: Invalid user musikbot from 112.35.62.225
Jul 12 18:49:29 firewall sshd[23519]: Failed password for invalid user musikbot from 112.35.62.225 port 34624 ssh2
Jul 12 18:53:52 firewall sshd[23604]: Invalid user box from 112.35.62.225
...
2020-07-13 06:00:56
36.71.166.197 attackbotsspam
Unauthorized connection attempt from IP address 36.71.166.197 on Port 445(SMB)
2020-07-13 06:12:49
106.12.12.141 attackspambots
Jul 12 16:01:05 Tower sshd[39938]: Connection from 106.12.12.141 port 58976 on 192.168.10.220 port 22 rdomain ""
Jul 12 16:01:10 Tower sshd[39938]: Invalid user cubie from 106.12.12.141 port 58976
Jul 12 16:01:10 Tower sshd[39938]: error: Could not get shadow information for NOUSER
Jul 12 16:01:10 Tower sshd[39938]: Failed password for invalid user cubie from 106.12.12.141 port 58976 ssh2
Jul 12 16:01:11 Tower sshd[39938]: Received disconnect from 106.12.12.141 port 58976:11: Bye Bye [preauth]
Jul 12 16:01:11 Tower sshd[39938]: Disconnected from invalid user cubie 106.12.12.141 port 58976 [preauth]
2020-07-13 05:56:56
216.218.206.87 attackbotsspam
Unauthorized connection attempt from IP address 216.218.206.87 on Port 3389(RDP)
2020-07-13 06:20:04
5.249.145.245 attackspam
883. On Jul 12 2020 experienced a Brute Force SSH login attempt -> 30 unique times by 5.249.145.245.
2020-07-13 06:18:38
49.232.45.64 attack
Jul 12 21:29:22 jumpserver sshd[42853]: Invalid user yuhui from 49.232.45.64 port 43004
Jul 12 21:29:24 jumpserver sshd[42853]: Failed password for invalid user yuhui from 49.232.45.64 port 43004 ssh2
Jul 12 21:34:51 jumpserver sshd[42926]: Invalid user mark from 49.232.45.64 port 55834
...
2020-07-13 06:04:21
68.183.42.230 attackbots
Jul 12 21:25:47 localhost sshd[93267]: Invalid user temp from 68.183.42.230 port 56268
Jul 12 21:25:47 localhost sshd[93267]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=68.183.42.230
Jul 12 21:25:47 localhost sshd[93267]: Invalid user temp from 68.183.42.230 port 56268
Jul 12 21:25:50 localhost sshd[93267]: Failed password for invalid user temp from 68.183.42.230 port 56268 ssh2
Jul 12 21:29:12 localhost sshd[93625]: Invalid user radu from 68.183.42.230 port 54414
...
2020-07-13 06:19:34
141.98.9.161 attackspambots
Invalid user admin from 141.98.9.161 port 40157
2020-07-13 06:06:40
198.100.146.65 attackspam
591. On Jul 12 2020 experienced a Brute Force SSH login attempt -> 50 unique times by 198.100.146.65.
2020-07-13 06:02:21
171.244.51.114 attack
Jul 13 00:04:33 dev0-dcde-rnet sshd[19569]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.244.51.114
Jul 13 00:04:35 dev0-dcde-rnet sshd[19569]: Failed password for invalid user marco from 171.244.51.114 port 41052 ssh2
Jul 13 00:09:12 dev0-dcde-rnet sshd[19674]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.244.51.114
2020-07-13 06:14:01
128.140.198.14 attackspambots
Unauthorized connection attempt from IP address 128.140.198.14 on Port 445(SMB)
2020-07-13 05:44:40
65.204.25.2 attackspam
Unauthorized connection attempt from IP address 65.204.25.2 on Port 445(SMB)
2020-07-13 06:09:47

Recently Reported IPs

177.46.133.60 190.207.249.177 195.154.232.205 174.221.14.160
51.223.146.4 190.12.77.32 118.24.243.53 103.81.114.103
74.120.14.77 60.149.7.253 207.154.199.63 111.4.121.189
190.90.191.45 180.183.232.50 59.46.13.137 207.154.242.155
114.42.207.37 83.227.11.180 189.86.186.70 81.70.22.100