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: Meganet Telecom

Hostname: unknown

Organization: unknown

Usage Type: Fixed Line ISP

Comments:
Type Details Datetime
attackbotsspam
Jul 15 08:15:38 rigel postfix/smtpd[31991]: warning: hostname 45-236-75-140.meganet.com.br does not resolve to address 45.236.75.140: Name or service not known
Jul 15 08:15:38 rigel postfix/smtpd[31991]: connect from unknown[45.236.75.140]
Jul 15 08:15:42 rigel postfix/smtpd[31991]: warning: unknown[45.236.75.140]: SASL CRAM-MD5 authentication failed: authentication failure
Jul 15 08:15:42 rigel postfix/smtpd[31991]: warning: unknown[45.236.75.140]: SASL PLAIN authentication failed: authentication failure
Jul 15 08:15:44 rigel postfix/smtpd[31991]: warning: unknown[45.236.75.140]: SASL LOGIN authentication failed: authentication failure


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=45.236.75.140
2019-07-15 18:21:12
Comments on same subnet:
IP Type Details Datetime
45.236.75.22 attackbots
(smtpauth) Failed SMTP AUTH login from 45.236.75.22 (BR/Brazil/-): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-08-28 16:38:11 plain authenticator failed for ([45.236.75.22]) [45.236.75.22]: 535 Incorrect authentication data (set_id=info@atlaspumpsepahan.com)
2020-08-28 22:00:04
45.236.75.64 attackspambots
(BR/Brazil/-) SMTP Bruteforcing attempts
2020-06-05 13:06:12
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 45.236.75.140
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 11889
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019071500 1800 900 604800 86400

;; Query time: 4 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Mon Jul 15 18:21:01 CST 2019
;; MSG SIZE  rcvd: 117
Host info
140.75.236.45.in-addr.arpa domain name pointer 45-236-75-140.meganet.com.br.
Nslookup info:
Server:		67.207.67.2
Address:	67.207.67.2#53

Non-authoritative answer:
140.75.236.45.in-addr.arpa	name = 45-236-75-140.meganet.com.br.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
49.69.61.152 attackspam
Brute force blocker - service: proftpd1, proftpd2 - aantal: 25 - Mon May 28 21:50:16 2018
2020-04-30 20:21:31
80.211.185.186 attack
lfd: (smtpauth) Failed SMTP AUTH login from 80.211.185.186 (IT/Italy/host186-185-211-80.serverdedicati.aruba.it): 5 in the last 3600 secs - Tue May 29 10:38:27 2018
2020-04-30 20:16:44
49.235.46.18 attackbotsspam
Invalid user a from 49.235.46.18 port 34212
2020-04-30 20:11:30
117.50.40.157 attack
SSH Brute-Forcing (server1)
2020-04-30 20:07:40
159.89.115.126 attackbots
Apr 30 13:44:35 dev0-dcde-rnet sshd[3164]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.115.126
Apr 30 13:44:37 dev0-dcde-rnet sshd[3164]: Failed password for invalid user admin from 159.89.115.126 port 34110 ssh2
Apr 30 13:47:12 dev0-dcde-rnet sshd[3305]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.89.115.126
2020-04-30 20:02:33
5.188.9.15 attackbots
Brute force blocker - service: dovecot1 - aantal: 25 - Tue May 29 04:35:16 2018
2020-04-30 20:23:02
46.38.144.32 attackspam
Apr 30 14:04:16 relay postfix/smtpd\[10835\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 30 14:04:31 relay postfix/smtpd\[7940\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 30 14:05:40 relay postfix/smtpd\[11326\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 30 14:05:53 relay postfix/smtpd\[4327\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 30 14:07:04 relay postfix/smtpd\[11326\]: warning: unknown\[46.38.144.32\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2020-04-30 20:11:53
60.162.42.136 attackspambots
Honeypot attack, port: 445, PTR: 136.42.162.60.broad.tz.zj.dynamic.163data.com.cn.
2020-04-30 19:59:04
37.59.123.166 attackspam
Apr 30 10:17:37 host sshd[19230]: Invalid user User from 37.59.123.166 port 53006
...
2020-04-30 20:09:54
61.31.230.4 attackspambots
20 attempts against mh-ssh on mist
2020-04-30 20:14:08
36.48.144.246 attackbotsspam
Apr 29 18:17:57 wbs sshd\[27614\]: Invalid user git from 36.48.144.246
Apr 29 18:17:57 wbs sshd\[27614\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.48.144.246
Apr 29 18:17:59 wbs sshd\[27614\]: Failed password for invalid user git from 36.48.144.246 port 1655 ssh2
Apr 29 18:22:10 wbs sshd\[27953\]: Invalid user james from 36.48.144.246
Apr 29 18:22:10 wbs sshd\[27953\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.48.144.246
2020-04-30 20:27:54
111.177.117.52 attack
lfd: (smtpauth) Failed SMTP AUTH login from 111.177.117.52 (-): 5 in the last 3600 secs - Tue May 29 18:56:38 2018
2020-04-30 20:05:00
165.22.241.112 attackspambots
Invalid user james from 165.22.241.112 port 13432
2020-04-30 20:18:02
89.210.29.173 attack
Unauthorised access (Apr 30) SRC=89.210.29.173 LEN=40 TTL=54 ID=28836 TCP DPT=8080 WINDOW=60948 SYN
2020-04-30 20:30:22
220.173.45.35 attackbotsspam
Brute force blocker - service: proftpd1, proftpd2 - aantal: 30 - Tue May 29 12:35:17 2018
2020-04-30 19:58:07

Recently Reported IPs

178.46.214.227 191.57.220.229 94.187.61.205 185.61.253.35
177.226.176.13 109.8.59.64 157.150.73.202 165.22.177.186
180.24.100.92 121.226.62.247 109.75.172.132 82.98.90.216
194.254.200.107 47.135.174.53 82.234.184.78 147.97.196.88
165.22.24.103 220.218.131.79 176.246.103.15 96.2.108.97