191.240.36.253
Neutral Activity
There is no recent abuse activity, or the IP address is whitelisted.
- ISP
- MASTER S/A
- Usage Type
- Fixed Line ISP
- ASN
- AS28202
- Domain Name
- mastercabo.com.br
- Country
- 🇧🇷 Brazil
- City
- Sao Jose dos Campos, Sao Paulo
No reports in the last 60 days
191.240.36.253 has been reported 185 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
185 from
76 distinct
reporters
First reported
Most recent report
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| 🇧🇷 ICS Labs |
ICS Labs identified 191.240.36.253 as a malicious indicator from threat intelligence.
|
DDoS Attack Port Scan Hacking Brute-Force Exploited Host | |
| 🇫🇷 iroco.co |
May 25 05:44:32 iroco cyrus/imap[3124417]: badlogin: 191-240-36-253.mal-wr.mastercabo.com [191.240.36.253] LOGIN ([email protected]) [SASL(-13): authentication failure: checkpass failed]
...
|
Email Spam | |
| 🇩🇪 FeG Deutschland |
Mail: - login with unknown user - bruteforce
|
Brute-Force | |
| 🇫🇷 adlp.org |
|
Brute-Force | |
| 🇷🇺 DZBOT |
DZBOT: [MTA] Brute-force users
|
Brute-Force | |
| 🇩🇪 FeG Deutschland |
Mail: - login with unknown user - bruteforce
|
Brute-Force | |
| 🇭🇰 Anonymous |
2026-05-18 21:41:11 warning[2465321]: host [191.240.36.253]: unauthorized access attempted: /
|
Port Scan Brute-Force | |
| 🇯🇵 kawanchu |
Brute-force attack via SMTP AUTH. Repeated login failures on mail server.
|
Brute-Force | |
| 🇸🇬 pusathosting.com |
imap1 failed login
|
Brute-Force | |
| 🇬🇧 venus.launch.bz |
(imapd) Failed IMAP login from 191.240.36.253 (BR/Brazil/191-240-36-253.mal-wr.mastercabo.com)
|
Brute-Force | |
| 🇫🇷 EDSL |
[mail.edsl.fr] Blocked by SysWarden Firewall (Mail Service Attack Port 993)
|
Brute-Force Port Scan Email Spam | |
| 🇺🇸 entangled_mongoose |
Failed SMTP authentication with username 'user_sha_c7f20@domain_sha_70fc2'.
|
Brute-Force Email Spam | |
| 🇩🇪 Stadt Schleiden |
RdpGuard detected brute-force attempt on IMAP
|
Brute-Force | |
| 🇺🇸 kosada.com |
IMAP password guessing
|
Brute-Force | |
| 🇬🇧 openstrike.co.uk |
Email auth failures (3)
|
Brute-Force |
Think this IP has been falsely reported? You may request to have the associated reports reviewed and removed. Request Takedown