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: Brazil

Internet Service Provider: Universidade Federal do Rio de Janeiro

Hostname: unknown

Organization: unknown

Usage Type: University/College/School

Comments:
Type Details Datetime
attackbotsspam
$f2bV_matches
2020-05-30 22:44:06
attack
Lines containing failures of 146.164.51.58
May 14 13:02:17 ris sshd[16608]: Invalid user tomcat from 146.164.51.58 port 41994
May 14 13:02:17 ris sshd[16608]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.164.51.58 
May 14 13:02:19 ris sshd[16608]: Failed password for invalid user tomcat from 146.164.51.58 port 41994 ssh2
May 14 13:02:20 ris sshd[16608]: Received disconnect from 146.164.51.58 port 41994:11: Bye Bye [preauth]
May 14 13:02:20 ris sshd[16608]: Disconnected from invalid user tomcat 146.164.51.58 port 41994 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=146.164.51.58
2020-05-16 00:05:41
attack
Invalid user route from 146.164.51.58 port 37656
2020-05-14 13:02:52
Comments on same subnet:
IP Type Details Datetime
146.164.51.61 attackspambots
$f2bV_matches
2020-06-20 02:44:20
146.164.51.62 attackbotsspam
Jun 17 05:48:52 mail sshd[18393]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.164.51.62
Jun 17 05:48:53 mail sshd[18393]: Failed password for invalid user test from 146.164.51.62 port 46560 ssh2
...
2020-06-17 18:53:30
146.164.51.55 attackbotsspam
SSH brute force attempt
2020-06-15 09:43:29
146.164.51.61 attack
Jun 14 15:43:33 lukav-desktop sshd\[1441\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.164.51.61  user=root
Jun 14 15:43:35 lukav-desktop sshd\[1441\]: Failed password for root from 146.164.51.61 port 47358 ssh2
Jun 14 15:47:14 lukav-desktop sshd\[1507\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.164.51.61  user=root
Jun 14 15:47:15 lukav-desktop sshd\[1507\]: Failed password for root from 146.164.51.61 port 34442 ssh2
Jun 14 15:50:47 lukav-desktop sshd\[1566\]: Invalid user userftp from 146.164.51.61
2020-06-14 21:15:15
146.164.51.50 attack
Jun  9 12:03:25 localhost sshd\[5460\]: Invalid user mattes from 146.164.51.50 port 57654
Jun  9 12:03:25 localhost sshd\[5460\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.164.51.50
Jun  9 12:03:27 localhost sshd\[5460\]: Failed password for invalid user mattes from 146.164.51.50 port 57654 ssh2
...
2020-06-10 01:58:17
146.164.51.50 attack
146.164.51.50 (BR/Brazil/-), 12 distributed sshd attacks on account [root] in the last 3600 secs
2020-06-04 22:24:49
146.164.51.60 attack
146.164.51.60 (BR/Brazil/-), 12 distributed sshd attacks on account [root] in the last 3600 secs
2020-06-04 22:22:13
146.164.51.59 attackbots
146.164.51.59 (BR/Brazil/-), 12 distributed sshd attacks on account [root] in the last 3600 secs
2020-06-04 22:21:51
146.164.51.53 attack
Jun  1 11:35:29 ns sshd[22111]: Connection from 146.164.51.53 port 36812 on 134.119.39.98 port 22
Jun  1 11:35:31 ns sshd[22111]: User r.r from 146.164.51.53 not allowed because not listed in AllowUsers
Jun  1 11:35:31 ns sshd[22111]: Failed password for invalid user r.r from 146.164.51.53 port 36812 ssh2
Jun  1 11:35:31 ns sshd[22111]: Received disconnect from 146.164.51.53 port 36812:11: Bye Bye [preauth]
Jun  1 11:35:31 ns sshd[22111]: Disconnected from 146.164.51.53 port 36812 [preauth]
Jun  1 11:39:41 ns sshd[8413]: Connection from 146.164.51.53 port 37166 on 134.119.39.98 port 22
Jun  1 11:39:43 ns sshd[8413]: User r.r from 146.164.51.53 not allowed because not listed in AllowUsers
Jun  1 11:39:43 ns sshd[8413]: Failed password for invalid user r.r from 146.164.51.53 port 37166 ssh2
Jun  1 11:39:43 ns sshd[8413]: Received disconnect from 146.164.51.53 port 37166:11: Bye Bye [preauth]
Jun  1 11:39:43 ns sshd[8413]: Disconnected from 146.164.51.53 port 37166 [preaut........
-------------------------------
2020-06-01 23:11:26
146.164.51.50 attackspambots
Jun  1 07:55:36 pornomens sshd\[13182\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.164.51.50  user=root
Jun  1 07:55:39 pornomens sshd\[13182\]: Failed password for root from 146.164.51.50 port 47392 ssh2
Jun  1 07:59:46 pornomens sshd\[13247\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=146.164.51.50  user=root
...
2020-06-01 14:28:25
146.164.51.49 attackspambots
May 30 07:13:05 askasleikir sshd[25918]: Failed password for git from 146.164.51.49 port 38694 ssh2
May 30 07:05:09 askasleikir sshd[25902]: Failed password for ftp from 146.164.51.49 port 39408 ssh2
May 30 07:01:14 askasleikir sshd[25896]: Failed password for root from 146.164.51.49 port 39786 ssh2
2020-05-30 20:56:48
146.164.51.50 attack
May 30 06:53:21 askasleikir sshd[25872]: Failed password for root from 146.164.51.50 port 40550 ssh2
2020-05-30 20:56:10
146.164.51.60 attack
Unauthorised connection attempt detected at AUO NODE 4. System is sshd. Protected by AUO Stack Web Application Firewall (WAF)
2020-05-30 20:55:50
146.164.51.62 attackbots
May 30 07:09:07 askasleikir sshd[25910]: Failed password for invalid user zabbix from 146.164.51.62 port 39052 ssh2
2020-05-30 20:53:50
146.164.51.52 attackspam
May 30 05:50:20 pve1 sshd[25943]: Failed password for root from 146.164.51.52 port 41272 ssh2
...
2020-05-30 12:31:02
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 146.164.51.58
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62560
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			216	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020051302 1800 900 604800 86400

;; Query time: 91 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu May 14 13:02:49 CST 2020
;; MSG SIZE  rcvd: 117
Host info
Host 58.51.164.146.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 58.51.164.146.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
202.152.1.89 attackspam
05/03/2020-19:11:52.783515 202.152.1.89 Protocol: 6 ET SCAN NMAP -sS window 1024
2020-05-04 08:46:54
198.108.67.110 attack
10010/tcp 9031/tcp 10011/tcp...
[2020-03-04/05-03]87pkt,83pt.(tcp)
2020-05-04 08:51:06
83.12.171.68 attack
k+ssh-bruteforce
2020-05-04 08:28:06
103.138.64.54 attackspambots
9878/tcp 1322/tcp 32/tcp...
[2020-04-21/05-03]31pkt,11pt.(tcp)
2020-05-04 08:30:00
162.243.143.79 attackspam
2020-05-04 01:44:48 SMTP protocol synchronization error (input sent whostnamehout wahostnameing for greeting): rejected connection from H=[162.243.143.79] input="EHLO zg-0428c-555
"


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=162.243.143.79
2020-05-04 08:57:11
129.204.205.125 attackbotsspam
k+ssh-bruteforce
2020-05-04 09:02:14
179.210.241.101 attackbotsspam
Port probing on unauthorized port 88
2020-05-04 08:42:23
139.59.7.251 attackspambots
k+ssh-bruteforce
2020-05-04 08:42:40
200.60.91.42 attack
" "
2020-05-04 08:41:39
85.93.23.171 attackbots
2020-05-03 22:35:57,153 fail2ban.actions: WARNING [postfix] Ban 85.93.23.171
2020-05-04 08:24:38
106.75.61.203 attack
" "
2020-05-04 08:38:00
104.236.142.200 attackbots
May  4 01:53:28 markkoudstaal sshd[23855]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.236.142.200
May  4 01:53:29 markkoudstaal sshd[23855]: Failed password for invalid user ftpuser from 104.236.142.200 port 47282 ssh2
May  4 01:57:58 markkoudstaal sshd[24683]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.236.142.200
2020-05-04 08:51:38
115.84.76.46 attack
failed_logins
2020-05-04 08:32:05
178.128.108.100 attackbots
2020-05-04T09:34:59.885228vivaldi2.tree2.info sshd[5452]: Failed password for root from 178.128.108.100 port 43772 ssh2
2020-05-04T09:37:05.936635vivaldi2.tree2.info sshd[5547]: Invalid user r00t from 178.128.108.100
2020-05-04T09:37:05.950768vivaldi2.tree2.info sshd[5547]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.108.100
2020-05-04T09:37:05.936635vivaldi2.tree2.info sshd[5547]: Invalid user r00t from 178.128.108.100
2020-05-04T09:37:08.065528vivaldi2.tree2.info sshd[5547]: Failed password for invalid user r00t from 178.128.108.100 port 43690 ssh2
...
2020-05-04 08:51:19
79.124.62.66 attack
TCP Port Scanning
2020-05-04 08:50:40

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