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AbuseIPDB » 191.53.12.58

191.53.12.58 was found in our database!

This IP was reported 66 times. Confidence of Abuse is 93%: ?

93%

ISP	MASTER S/A
Usage Type	Fixed Line ISP
ASN	AS28202
Hostname(s)	191-53-12-58.lna-wr.soumaster.com.br
Domain Name	mastercabo.com.br
Country	🇧🇷 Brazil
City	Guaratingueta, Sao Paulo

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

Report 191.53.12.58

Whois 191.53.12.58

IP Abuse Reports for 191.53.12.58:

This IP address has been reported a total of 66 times from 40 distinct sources. 191.53.12.58 was first reported on March 25th 2026, and the most recent report was 2 days ago.

Recent Reports: We have received reports of abusive activity from this IP address within the last week. It is potentially still actively engaged in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇬🇧 gaztronics	2026-06-11 00:50:56 (2 days ago)	2026-06-11T00:50:52.409851 liberator auth[1542960]: pam_unix(dovecot:auth): authentication failure; ... show more 2026-06-11T00:50:52.409851 liberator auth[1542960]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot [email protected] rhost=191.53.12.58 ... show less	Brute-Force
🇪🇸 www.pk25.com	2026-06-10 09:41:43 (2 days ago)	2026-06-10T11:41:24.694209+02:00 servidor1 auth[3529951]: pam_unix(dovecot:auth): authentication fai ... show more 2026-06-10T11:41:24.694209+02:00 servidor1 auth[3529951]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot [email protected] rhost=191.53.12.58 2026-06-10T11:41:34.299092+02:00 servidor1 auth[3529951]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot [email protected] rhost=191.53.12.58 2026-06-10T11:41:42.868062+02:00 servidor1 auth[3529951]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot [email protected] rhost=191.53.12.58 ... show less	Brute-Force
🇫🇷 EDSL	2026-06-10 07:15:37 (2 days ago)	[mail.edsl.fr] Blocked by SysWarden Firewall (Mail Service Attack)	Email Spam Port Scan Brute-Force
🇪🇸 www.pk25.com	2026-06-10 02:11:29 (3 days ago)	2026-06-10T04:11:10.216207+02:00 servidor1 auth[3215488]: pam_unix(dovecot:auth): authentication fai ... show more 2026-06-10T04:11:10.216207+02:00 servidor1 auth[3215488]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot [email protected] rhost=191.53.12.58 2026-06-10T04:11:19.892030+02:00 servidor1 auth[3215488]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot [email protected] rhost=191.53.12.58 2026-06-10T04:11:28.902984+02:00 servidor1 auth[3215488]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot [email protected] rhost=191.53.12.58 ... show less	Brute-Force
🇦🇺 FireGuard Server	2026-06-09 16:05:10 (3 days ago)	Blocked by OPNsense firewall; 3 hits, proto=tcp, ports=143	Port Scan Hacking
🇷🇴 gtheo99	2026-06-08 07:29:55 (4 days ago)	(imapd) Failed IMAP login from 191.53.12.58 (BR/Brazil/191-53-12-58.lna-wr.soumaster.com.br): 3 in t ... show more (imapd) Failed IMAP login from 191.53.12.58 (BR/Brazil/191-53-12-58.lna-wr.soumaster.com.br): 3 in the last 900 secs show less	Brute-Force Email Spam
🇩🇪 Hazzard	2026-06-07 11:52:18 (5 days ago)	(pop3d) Failed POP3 login from 191.53.12.58 (BR/Brazil/São Paulo/Lorena/191-53-12-58.lna-wr.soumaste ... show more (pop3d) Failed POP3 login from 191.53.12.58 (BR/Brazil/São Paulo/Lorena/191-53-12-58.lna-wr.soumaster.com.br/[redacted]) show less	Brute-Force
🇧🇷 ICS Labs	2026-06-04 17:51:00 (1 week ago)	ICS Labs identified 191.53.12.58 as a malicious indicator from threat intelligence.	DDoS Attack Hacking Exploited Host
🇦🇹 AustrianSimon	2026-06-04 13:29:05 (1 week ago)	04 Jun 2026 13:29:04UTC:Distributed Brute Force Password Attack (smtp, ftp, imap, pop, ssh) includin ... show more 04 Jun 2026 13:29:04UTC:Distributed Brute Force Password Attack (smtp, ftp, imap, pop, ssh) including ip address 191.53.12.58 show less	Brute-Force
Anonymous	2026-06-02 13:44:22 (1 week ago)	Authentication failure	Brute-Force
🇩🇪 Hazzard	2026-05-30 12:14:57 (1 week ago)	191.53.12.58 (BR/Brazil/São Paulo/Lorena/191-53-12-58.lna-wr.soumaster.com.br/[redacted]	Brute-Force
🇩🇪 Hazzard	2026-05-30 11:49:08 (1 week ago)	(imapd) Failed IMAP login from 191.53.12.58 (BR/Brazil/São Paulo/Lorena/191-53-12-58.lna-wr.soumaste ... show more (imapd) Failed IMAP login from 191.53.12.58 (BR/Brazil/São Paulo/Lorena/191-53-12-58.lna-wr.soumaster.com.br/[redacted]) show less	Brute-Force
🇺🇸 TheCluePhone	2026-05-30 09:15:25 (1 week ago)	2026-05-30T09:15:25.051584ip-172-30-0-137.ec2.internal auth[5132]: pam_unix(dovecot:auth): authentic ... show more 2026-05-30T09:15:25.051584ip-172-30-0-137.ec2.internal auth[5132]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot [email protected] rhost=191.53.12.58 ... show less	Brute-Force Exploited Host
🇬🇧 cg-design.co.uk	2026-05-29 22:01:03 (2 weeks ago)	191.53.12.58 (BR/Brazil/191-53-12-58.lna-wr.soumaster.com.br), 10 distributed imapd attacks on accou ... show more 191.53.12.58 (BR/Brazil/191-53-12-58.lna-wr.soumaster.com.br), 10 distributed imapd attacks on account [redacted] show less	Brute-Force
🇷🇴 INTEQ	2026-05-27 15:11:24 (2 weeks ago)	Brute force attack from 191.53.12.58	Brute-Force

Showing 1 to 15 of 66 reports

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