🇿🇦
maximonline.co.za
2026-04-21 03:50:03
(1 month ago)
Brute Force SMTP AUTH Attack
Brute-Force
🇺🇸
bigscoots.com
2026-04-21 03:42:58
(1 month ago)
(smtpauth) Failed SMTP AUTH login from 66.56.81.142 (CA/Canada/-): 5 in the last 3600 secs; Ports: 2 ...
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(smtpauth) Failed SMTP AUTH login from 66.56.81.142 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-20 23:42:29 dovecot_plain authenticator failed for H=([10.13.18.58]) [66.56.81.142]:21424: 535 Incorrect authentication data ([email protected] )
2026-04-20 23:42:35 dovecot_login authenticator failed for H=([10.13.18.58]) [66.56.81.142]:21424: 535 Incorrect authentication data ([email protected] )
2026-04-20 23:42:41 dovecot_plain authenticator failed for H=([10.13.18.58]) [66.56.81.142]:59082: 535 Incorrect authentication data ([email protected] )
2026-04-20 23:42:47 dovecot_login authenticator failed for H=([10.13.18.58]) [66.56.81.142]:59082: 535 Incorrect authentication data ([email protected] )
2026-04-20 23:42:55 dovecot_plain authenticator failed for H=([10.13.18.58]) [66.56.81.142]:11705: 535 Incorrect authentication data ([email protected] )
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Brute-Force
SSH
🇨🇿
lp
2026-04-21 03:19:52
(1 month ago)
Email account brute force: 4 attempts were recorded from 66.56.81.142
2026-04-21T04:55:36+02:00 warn ...
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Email account brute force: 4 attempts were recorded from 66.56.81.142
2026-04-21T04:55:36+02:00 warning: unknown[66.56.81.142]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-21T04:55:36+02:00 warning: unknown[66.56.81.142]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-04-21T04:55:37+02:00 warning: unknown[66.56.81.142]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-21T04:55:38+02:00 warning: unknown[66.56.81.142]: SASL LOGIN authentication failed: authentication failure, [email protected]
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Brute-Force
2026-04-21 02:57:02
(1 month ago)
...
Brute-Force
🇧🇷
SvrAdmin
2026-04-21 02:50:13
(1 month ago)
[101] (smtpauth) Failed SMTP AUTH login from 66.56.81.142 (CA/Canada/-): 5 in the last 3600 secs; Po ...
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[101] (smtpauth) Failed SMTP AUTH login from 66.56.81.142 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-04-20 23:49:44 dovecot_plain authenticator failed for H=([10.13.18.58]) [66.56.81.142]:24406: 535 Incorrect authentication data ([email protected] )
2026-04-20 23:49:50 dovecot_login authenticator failed for H=([10.13.18.58]) [66.56.81.142]:24406: 535 Incorrect authentication data ([email protected] )
2026-04-20 23:49:57 dovecot_plain authenticator failed for H=([10.13.18.58]) [66.56.81.142]:38618: 535 Incorrect authentication data ([email protected] )
2026-04-20 23:49:59 dovecot_login authenticator failed for H=([10.13.18.58]) [66.56.81.142]:38618: 535 Incorrect authentication data ([email protected] )
2026-04-20 23:50:09 dovecot_plain authenticator failed for H=([10.13.18.58]) [66.56.81.142]:41587: 535 Incorrect authentication data ([email protected] )
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Port Scan
Hacking
Brute-Force
Exploited Host
🇧🇷
hostseries
2026-04-17 16:51:48
(1 month ago)
Trigger: LF_SMTPAUTH
Brute-Force
🇺🇸
masterguru
2026-04-17 16:09:38
(1 month ago)
(smtpauth) Failed SMTP AUTH login from 66.56.81.142 (CA/Canada/-): 5 in the last 3600 secs (0-169)
Brute-Force
🇮🇹
VHosting
2026-04-15 20:02:43
(1 month ago)
Detected mail brute force attack from 4 different servers
Brute-Force
🇫🇷
Dorian GRANDHAY
2026-04-15 19:32:55
(1 month ago)
66.56.81.142 (CA/Canada/-), 5 distributed smtpauth attacks on account [[email protected] ] in the last ...
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66.56.81.142 (CA/Canada/-), 5 distributed smtpauth attacks on account [[email protected] ] in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_DISTATTACK; Logs: 2026-04-15 21:18:12 dovecot_plain authenticator failed for H=(fraring) [213.33.209.197]:35474: 535 Incorrect authentication data ([email protected] )
2026-04-15 21:32:48 dovecot_plain authenticator failed for H=([10.13.18.91]) [66.56.81.142]:2626: 535 Incorrect authentication data ([email protected] )
2026-04-15 21:32:42 dovecot_login authenticator failed for H=([10.13.18.91]) [66.56.81.142]:51819: 535 Incorrect authentication data ([email protected] )
2026-04-15 21:32:54 dovecot_login authenticator failed for H=([10.13.18.91]) [66.56.81.142]:2626: 535 Incorrect authentication data ([email protected] )
2026-04-15 21:32:36 dovecot_plain authenticator failed for H=([10.13.18.91]) [66.56.81.142]:51819: 535 Incorrect authentication data ([email protected] )
IP Addresses Blocked:
213.33.209.197 (RU/Russia/-)
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Port Scan
🇹🇷
rtbh.com.tr
2026-03-19 20:12:09
(2 months ago)
list.rtbh.com.tr report: tcp/0
Brute-Force
🇹🇷
rtbh.com.tr
2026-03-18 20:12:08
(2 months ago)
list.rtbh.com.tr report: tcp/0
Brute-Force
🇺🇸
agenciahypelab.com.br
2026-03-17 18:27:10
(2 months ago)
WordPress login brute-force detectado e bloqueado pelo CSF/LFD. Trigger: LF_TRIGGER
Brute-Force
SSH
🇮🇩
aaKenshin
2026-03-17 15:58:36
(2 months ago)
Suspicious activity detected from IP 66.56.81.142 based on mailserver logs.
Sample logs:
2026-03-17 ...
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Suspicious activity detected from IP 66.56.81.142 based on mailserver logs.
Sample logs:
2026-03-17 23:58:13,658 INFO [qtp2102534528-154669] [name=**@*.id;ip=172.16.0.182;oip=66.56.81.142;oport=58181;oproto=smtp;port=51578;soapId=2e7979ca;] soap - AuthRequest elapsed=3
2026-03-17 23:58:25,201 INFO [qtp2102534528-154687] [name=**@*.id;ip=172.16.0.182;oip=66.56.81.142;oport=16189;oproto=smtp;port=58850;soapId=2e7979cb;] SoapEngine - handler exception: authentication failed for [**], LDAP error: - unable to ldap authenticate: invalid credentials
2026-03-17 23:58:25,201 INFO [qtp2102534528-154687] [name=**@*.id;ip=172.16.0.182;oip=66.56.81.142;oport=16189;oproto=smtp;port=58850;soapId=2e7979cb;] soap - AuthRequest elapsed=1
2026-03-17 23:58:25,670 INFO [qtp2102534528-154651] [name=**@*.id;ip=172.16.0.182;oip=66.56.81.142;oport=16189;oproto=smtp;port=58866;soapId=2e7979cc;] SoapEngine - handler exception: authentication failed for [**], LDAP error: - unable to ldap authenticate: inval
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Brute-Force
2026-03-08 00:05:40
(3 months ago)
Unauthorized connection attempt detected in the last 24 hours
Hacking
2026-03-02 22:45:08
(3 months ago)
Unauthorized connection attempt detected in the last 24 hours
Hacking