191.59.243.28
Neutral Activity
There is no recent abuse activity, or the IP address is whitelisted.
- ISP
- CLARO S.A.
- Usage Type
- Fixed Line ISP
- ASN
- AS4230
- Domain Name
- claro.com.br
- Country
- 🇧🇷 Brazil
- City
- Sao Paulo, Sao Paulo
No reports in the last 60 days
191.59.243.28 has been reported 83 times. The most recent report is from .
The full history is preserved below and remains searchable. A 0% score reflects the absence of recent activity, but this is not a guarantee that earlier reports were invalid. Abuse confidence score decays, naturally, over time, when the abusive activity stops.
Abuse Reports
Total reports
83 from
53 distinct
reporters
First reported
Most recent report
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| Anonymous |
<jail> banned by fail2ban
|
Brute-Force Web App Attack | |
| 🇦🇷 Turu |
DDoS attack + email spoofing + phishing + malware delivery targeting SMTP mail server (TCP/25). Multiple connection attempts detected. Detected on 2026-02-19, Buenos Aires, Argentina.
|
DDoS Attack Open Proxy Email Spam Port Scan Brute-Force | |
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/0
|
Brute-Force | |
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/0
|
Brute-Force | |
| Anonymous |
SMTP brute force - auth failed
|
Brute-Force Exploited Host | |
| 🇫🇷 basing |
2026-02-08 06:39:28 idz SASL PLAIN auth failed: rhost=191.59.243.28...
|
Brute-Force | |
| 🇺🇸 chrisj |
|
Brute-Force | |
| Anonymous |
Feb 8 03:51:58 dell postfix-submission/smtpd[10402]: warning: unknown[191.59.243.28]: SASL LOGIN authentication failed: authentication failure
|
Brute-Force | |
| 🇳🇱 wlt-blocker |
Attempts to login to mail server with wrong username and/or password
|
Brute-Force | |
| 🇩🇪 DocNetzwerk |
(smtpauth) Failed SMTP AUTH login from 191.59.243.28 (BR/Brazil/-)
|
Brute-Force | |
| 🇪🇪 reigo |
SSH invalid-user multiple login try
|
Brute-Force SSH | |
| Anonymous |
Feb 8 00:27:59 m postfix/smtpd[75846]: warning: unknown[191.59.243.28]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
...
|
Brute-Force | |
| Anonymous |
SMTP brute force - auth failed
|
Brute-Force Exploited Host | |
| 🇹🇷 rtbh.com.tr |
list.rtbh.com.tr report: tcp/0
|
Brute-Force | |
| 🇫🇷 solution.it |
|
Brute-Force |
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