131.100.138.99

Recent Activity This IP has received recent abuse reports, which causes the score to increase.
Abuse Confidence Score
61% Elevated
95 reports
53 reporters · latest 4 hours ago
ISP
Impactnet Telecomunicacoes LTDA
Usage Type
Fixed Line ISP
ASN
AS61638
Hostname(s)
131-100-138-99.impactus.net.br
Domain Name
impactnettelecom.com.br
Country
🇧🇷 Brazil
City
Cassia, Minas Gerais
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Abuse Reports

Total reports
95 from 53 distinct reporters
First reported
Most recent report
Last 60 days
Top reporter locations 🇺🇸 United States of America 7 🇩🇪 Germany 6 🇬🇧 United Kingdom of Great Britain and Northern Ireland 2
Most common categories Brute-Force 25 Port Scan 3 Hacking 2 SSH 2 Email Spam 2
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
Anonymous
131.100.138.99 detected on srv01
Brute-Force
🇦🇹 joe-abuse
2026-11-06T00:10:42.908364+01:00 ucs1 dovecot: auth-worker(62196): conn unix:auth-worker (pid=1061,uid=121): auth-worker<1>: pam([email protected],131.100.138.99,<ENjKmo9fet6DZIpj>): unknown user (given password: Hamlet21!&) ...
Brute-Force
Anonymous
IMAP password guessing
Brute-Force
🇩🇪 FeG Deutschland
Mail: - login with unknown user - bruteforce
Brute-Force
🇺🇸 agenciahypelab.com.br
WordPress login brute-force detectado e bloqueado pelo CSF/LFD. Trigger: LF_TRIGGER
Brute-Force SSH
🇮🇹 CoreTech srl
[DC: IP:151.1.252.27] ntopng alert: blacklisted_client_contact,ndpi_unsafe_protocol
Hacking
Anonymous
IMAP password guessing
Brute-Force
🇺🇸 TAY
Brute-Force
🇧🇷 ICS Labs
ICS Labs threat intelligence (ICS Feeds): Brute-Force, Exploited Host. Last observed 2026-10-20 UTC.
Brute-Force Exploited Host
🇬🇧 D3monite
Attempted Brute Force (dovecot)
Brute-Force
🇺🇸 agenciahypelab.com.br
WordPress login brute-force detectado e bloqueado pelo CSF/LFD. Trigger: LF_TRIGGER
Brute-Force SSH
🇩🇪 filstal.org
Brute-force/Enumeration: Multiple login attempts for non-existent mail accounts (Honeytrap).
Email Spam Brute-Force
Anonymous
2026-10-02T10:17:04.408939+02:00 soli-gate cyrus/imaps[282998]: badlogin: 131-100-138-99.impactus.net.br [131.100.138.99] plaintext ([email protected]) [SASL(-13): authentication failure: checkpass failed] ...
Brute-Force
🇬🇧 openstrike.co.uk
Email auth failures (3)
Brute-Force
🇷🇺 DZBOT
DZBOT: [MTA] NO LOGIN / auth failed
Port Scan Brute-Force

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