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: WI - Provedor de Telecomunicacoes Ltda.

Hostname: unknown

Organization: unknown

Usage Type: Fixed Line ISP

Comments:
Type Details Datetime
attackspambots
SASL PLAIN auth failed: ruser=...
2019-08-19 12:06:02
Comments on same subnet:
IP Type Details Datetime
201.55.158.55 attack
email brute force
2020-09-17 02:42:58
201.55.158.55 attackspambots
Sep 15 18:24:03 mail.srvfarm.net postfix/smtps/smtpd[2819938]: warning: 201-55-158-55.witelecom.com.br[201.55.158.55]: SASL PLAIN authentication failed: 
Sep 15 18:24:03 mail.srvfarm.net postfix/smtps/smtpd[2819938]: lost connection after AUTH from 201-55-158-55.witelecom.com.br[201.55.158.55]
Sep 15 18:26:53 mail.srvfarm.net postfix/smtps/smtpd[2805670]: warning: 201-55-158-55.witelecom.com.br[201.55.158.55]: SASL PLAIN authentication failed: 
Sep 15 18:26:54 mail.srvfarm.net postfix/smtps/smtpd[2805670]: lost connection after AUTH from 201-55-158-55.witelecom.com.br[201.55.158.55]
Sep 15 18:33:12 mail.srvfarm.net postfix/smtps/smtpd[2818213]: warning: 201-55-158-55.witelecom.com.br[201.55.158.55]: SASL PLAIN authentication failed:
2020-09-16 19:02:23
201.55.158.228 attackbotsspam
Sep 12 21:11:40 mail.srvfarm.net postfix/smtps/smtpd[610610]: warning: 201-55-158-228.witelecom.com.br[201.55.158.228]: SASL PLAIN authentication failed: 
Sep 12 21:11:40 mail.srvfarm.net postfix/smtps/smtpd[610610]: lost connection after AUTH from 201-55-158-228.witelecom.com.br[201.55.158.228]
Sep 12 21:17:02 mail.srvfarm.net postfix/smtps/smtpd[596783]: warning: 201-55-158-228.witelecom.com.br[201.55.158.228]: SASL PLAIN authentication failed: 
Sep 12 21:17:02 mail.srvfarm.net postfix/smtps/smtpd[596783]: lost connection after AUTH from 201-55-158-228.witelecom.com.br[201.55.158.228]
Sep 12 21:17:13 mail.srvfarm.net postfix/smtps/smtpd[597331]: warning: 201-55-158-228.witelecom.com.br[201.55.158.228]: SASL PLAIN authentication failed:
2020-09-14 01:32:43
201.55.158.228 attack
Sep 12 21:11:40 mail.srvfarm.net postfix/smtps/smtpd[610610]: warning: 201-55-158-228.witelecom.com.br[201.55.158.228]: SASL PLAIN authentication failed: 
Sep 12 21:11:40 mail.srvfarm.net postfix/smtps/smtpd[610610]: lost connection after AUTH from 201-55-158-228.witelecom.com.br[201.55.158.228]
Sep 12 21:17:02 mail.srvfarm.net postfix/smtps/smtpd[596783]: warning: 201-55-158-228.witelecom.com.br[201.55.158.228]: SASL PLAIN authentication failed: 
Sep 12 21:17:02 mail.srvfarm.net postfix/smtps/smtpd[596783]: lost connection after AUTH from 201-55-158-228.witelecom.com.br[201.55.158.228]
Sep 12 21:17:13 mail.srvfarm.net postfix/smtps/smtpd[597331]: warning: 201-55-158-228.witelecom.com.br[201.55.158.228]: SASL PLAIN authentication failed:
2020-09-13 17:26:14
201.55.158.225 attackbots
Aug 11 13:55:53 mail.srvfarm.net postfix/smtps/smtpd[2364251]: warning: 201-55-158-225.witelecom.com.br[201.55.158.225]: SASL PLAIN authentication failed: 
Aug 11 13:55:53 mail.srvfarm.net postfix/smtps/smtpd[2364251]: lost connection after AUTH from 201-55-158-225.witelecom.com.br[201.55.158.225]
Aug 11 13:56:01 mail.srvfarm.net postfix/smtps/smtpd[2366576]: warning: 201-55-158-225.witelecom.com.br[201.55.158.225]: SASL PLAIN authentication failed: 
Aug 11 13:56:01 mail.srvfarm.net postfix/smtps/smtpd[2366576]: lost connection after AUTH from 201-55-158-225.witelecom.com.br[201.55.158.225]
Aug 11 14:01:31 mail.srvfarm.net postfix/smtps/smtpd[2367144]: warning: 201-55-158-225.witelecom.com.br[201.55.158.225]: SASL PLAIN authentication failed:
2020-08-12 03:30:05
201.55.158.169 attackspam
Jun 18 05:12:42 mail.srvfarm.net postfix/smtps/smtpd[1338969]: warning: 201-55-158-169.witelecom.com.br[201.55.158.169]: SASL PLAIN authentication failed: 
Jun 18 05:12:42 mail.srvfarm.net postfix/smtps/smtpd[1338969]: lost connection after AUTH from 201-55-158-169.witelecom.com.br[201.55.158.169]
Jun 18 05:13:35 mail.srvfarm.net postfix/smtpd[1337038]: warning: 201-55-158-169.witelecom.com.br[201.55.158.169]: SASL PLAIN authentication failed: 
Jun 18 05:13:36 mail.srvfarm.net postfix/smtpd[1337038]: lost connection after AUTH from 201-55-158-169.witelecom.com.br[201.55.158.169]
Jun 18 05:19:08 mail.srvfarm.net postfix/smtpd[1339651]: warning: 201-55-158-169.witelecom.com.br[201.55.158.169]: SASL PLAIN authentication failed:
2020-06-18 16:41:12
201.55.158.113 attackbotsspam
(BR/Brazil/-) SMTP Bruteforcing attempts
2020-06-05 17:42:07
201.55.158.87 attack
(BR/Brazil/-) SMTP Bruteforcing attempts
2020-06-05 17:38:25
201.55.158.242 attackspambots
Jun  4 13:43:49 mail.srvfarm.net postfix/smtpd[2497905]: warning: 201-55-158-242.witelecom.com.br[201.55.158.242]: SASL PLAIN authentication failed: 
Jun  4 13:43:50 mail.srvfarm.net postfix/smtpd[2497905]: lost connection after AUTH from 201-55-158-242.witelecom.com.br[201.55.158.242]
Jun  4 13:51:32 mail.srvfarm.net postfix/smtpd[2502236]: warning: 201-55-158-242.witelecom.com.br[201.55.158.242]: SASL PLAIN authentication failed: 
Jun  4 13:51:32 mail.srvfarm.net postfix/smtpd[2502236]: lost connection after AUTH from 201-55-158-242.witelecom.com.br[201.55.158.242]
Jun  4 13:52:13 mail.srvfarm.net postfix/smtps/smtpd[2498108]: warning: 201-55-158-242.witelecom.com.br[201.55.158.242]: SASL PLAIN authentication failed:
2020-06-05 03:18:55
201.55.158.21 attack
May 20 17:46:49 mail.srvfarm.net postfix/smtps/smtpd[1512859]: warning: 201-55-158-21.witelecom.com.br[201.55.158.21]: SASL PLAIN authentication failed: 
May 20 17:46:50 mail.srvfarm.net postfix/smtps/smtpd[1512859]: lost connection after AUTH from 201-55-158-21.witelecom.com.br[201.55.158.21]
May 20 17:51:02 mail.srvfarm.net postfix/smtpd[1512862]: warning: 201-55-158-21.witelecom.com.br[201.55.158.21]: SASL PLAIN authentication failed: 
May 20 17:51:02 mail.srvfarm.net postfix/smtpd[1512862]: lost connection after AUTH from 201-55-158-21.witelecom.com.br[201.55.158.21]
May 20 17:54:07 mail.srvfarm.net postfix/smtps/smtpd[1510940]: warning: 201-55-158-21.witelecom.com.br[201.55.158.21]: SASL PLAIN authentication failed:
2020-05-21 00:51:00
201.55.158.46 attackbots
Brute forcing email accounts
2020-05-10 05:02:42
201.55.158.2 attackspambots
SpamScore above: 10.0
2020-03-25 10:05:05
201.55.158.155 attackbots
Sep  5 22:52:02 mailman postfix/smtpd[12837]: warning: 201-55-158-155.witelecom.com.br[201.55.158.155]: SASL PLAIN authentication failed: authentication failure
2019-09-06 17:55:04
201.55.158.171 attackspambots
Sep  5 14:11:06 mailman postfix/smtpd[29743]: warning: 201-55-158-171.witelecom.com.br[201.55.158.171]: SASL PLAIN authentication failed: authentication failure
2019-09-06 03:49:34
201.55.158.62 attackbotsspam
Excessive failed login attempts on port 25
2019-09-03 17:15:51
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 201.55.158.28
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 61535
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019081801 1800 900 604800 86400

;; Query time: 3 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Mon Aug 19 12:05:56 CST 2019
;; MSG SIZE  rcvd: 117
Host info
28.158.55.201.in-addr.arpa domain name pointer 201-55-158-28.witelecom.com.br.
Nslookup info:
Server:		67.207.67.2
Address:	67.207.67.2#53

Non-authoritative answer:
28.158.55.201.in-addr.arpa	name = 201-55-158-28.witelecom.com.br.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
124.160.83.138 attackspam
May 25 23:06:13 marvibiene sshd[45316]: Invalid user gilman from 124.160.83.138 port 40555
May 25 23:06:13 marvibiene sshd[45316]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.160.83.138
May 25 23:06:13 marvibiene sshd[45316]: Invalid user gilman from 124.160.83.138 port 40555
May 25 23:06:15 marvibiene sshd[45316]: Failed password for invalid user gilman from 124.160.83.138 port 40555 ssh2
...
2020-05-26 07:16:36
122.224.168.22 attackspam
May 25 22:30:36 ns382633 sshd\[19894\]: Invalid user bob from 122.224.168.22 port 35252
May 25 22:30:36 ns382633 sshd\[19894\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.224.168.22
May 25 22:30:38 ns382633 sshd\[19894\]: Failed password for invalid user bob from 122.224.168.22 port 35252 ssh2
May 25 22:37:42 ns382633 sshd\[21134\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.224.168.22  user=root
May 25 22:37:44 ns382633 sshd\[21134\]: Failed password for root from 122.224.168.22 port 50935 ssh2
2020-05-26 07:07:09
200.107.233.112 attack
port scan and connect, tcp 8080 (http-proxy)
2020-05-26 07:39:05
109.64.40.58 attack
Automatic report - Port Scan Attack
2020-05-26 07:08:05
84.107.65.175 attackspam
port scan and connect, tcp 23 (telnet)
2020-05-26 07:09:49
114.84.48.55 attackbots
Honeypot attack, port: 5555, PTR: PTR record not found
2020-05-26 07:34:23
150.109.99.68 attackspam
May 25 19:23:16 NPSTNNYC01T sshd[26134]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.109.99.68
May 25 19:23:19 NPSTNNYC01T sshd[26134]: Failed password for invalid user jet from 150.109.99.68 port 58498 ssh2
May 25 19:29:06 NPSTNNYC01T sshd[26686]: Failed password for root from 150.109.99.68 port 37426 ssh2
...
2020-05-26 07:36:44
114.26.196.112 attackbots
Attempted connection to port 23.
2020-05-26 07:12:30
187.72.167.124 attackbots
SSH Invalid Login
2020-05-26 07:09:21
165.22.19.200 attack
SpamScore above: 10.0
2020-05-26 07:30:51
195.154.250.104 attackbots
$f2bV_matches
2020-05-26 07:18:55
61.69.131.207 attackbots
Telnet Server BruteForce Attack
2020-05-26 07:20:00
14.18.58.216 attackbots
SSH invalid-user multiple login attempts
2020-05-26 07:28:47
62.210.76.168 attack
2020-05-26T01:28:25.812010vps751288.ovh.net sshd\[11653\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62-210-76-168.rev.poneytelecom.eu  user=root
2020-05-26T01:28:27.392794vps751288.ovh.net sshd\[11653\]: Failed password for root from 62.210.76.168 port 51516 ssh2
2020-05-26T01:28:42.315526vps751288.ovh.net sshd\[11661\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62-210-76-168.rev.poneytelecom.eu  user=root
2020-05-26T01:28:44.898603vps751288.ovh.net sshd\[11661\]: Failed password for root from 62.210.76.168 port 46318 ssh2
2020-05-26T01:28:58.548590vps751288.ovh.net sshd\[11665\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62-210-76-168.rev.poneytelecom.eu  user=root
2020-05-26 07:35:08
96.9.70.234 attack
May 26 01:20:06 minden010 sshd[3919]: Failed password for root from 96.9.70.234 port 58246 ssh2
May 26 01:24:19 minden010 sshd[5295]: Failed password for root from 96.9.70.234 port 36842 ssh2
...
2020-05-26 07:38:12

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