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π§π·
SvrAdmin
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[101] (smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Po ...
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[101] (smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-04-22 01:12:11 dovecot_plain authenticator failed for H=([10.21.151.73]) [212.56.49.30]:28403: 535 Incorrect authentication data ([email protected])
2026-04-22 01:12:18 dovecot_login authenticator failed for H=([10.21.151.73]) [212.56.49.30]:28403: 535 Incorrect authentication data ([email protected])
2026-04-22 01:12:26 dovecot_plain authenticator failed for H=([10.21.151.73]) [212.56.49.30]:42414: 535 Incorrect authentication data ([email protected])
2026-04-22 01:31:05 dovecot_plain authenticator failed for H=([10.21.182.171]) [212.56.49.30]:62345: 535 Incorrect authentication data ([email protected])
2026-04-22 01:31:12 dovecot_login authenticator failed for H=([10.21.182.171]) [212.56.49.30]:62345: 535 Incorrect authentication data ([email protected])
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Port Scan
Hacking
Brute-Force
Exploited Host
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Anonymous
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Failed login attempt detected by Fail2Ban in plesk-postfix jail
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Brute-Force
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π«π·
β¨
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Rule : SMTP
04/17/26 22:01:32 2860 212.56.49.30 ***hidden-privacy*** ESMTP Fenix Provider - mail. ...
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Rule : SMTP
04/17/26 22:01:32 2860 212.56.49.30 ***hidden-privacy*** ESMTP Fenix Provider - mail.fnxprovider.com.br -- pronto em 04/17/26 22:01:32 91 0
04/17/26 22:01:33 2860 212.56.49.30 EHLO ehlo [10.21.202.246] ***hidden-privacy*** [212.56.49.30], this server offers 7 extensions 287 22
04/17/26 22:01:33 2860 212.56.49.30 AUTH {blank} 334 PDMzNTIuMjEwMDM0NjQwQG1haWw 34 15
04/17/26 22:01:33 2860 212.56.49.30 AUTH {blank} 535 Invalid username or password CRAM-MD5 43 78 svsrton
04/17/26 22:01:33 2860 212.56.49.30 AUTH AUTH LOGIN c3ZzcnRvbkBmZW5peGNpLmNvbS5icg== 501 Error decoding Username parameter. 40 45
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Email Spam
Port Scan
Spoofing
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π©πͺ
EGP Abuse Dept
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SMTP AUTH attack
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Brute-Force
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π§π·
SvrAdmin
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[101] (smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Po ...
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[101] (smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-04-06 14:01:50 dovecot_plain authenticator failed for H=([10.21.18.242]) [212.56.49.30]:63591: 535 Incorrect authentication data ([email protected])
2026-04-06 14:01:56 dovecot_login authenticator failed for H=([10.21.18.242]) [212.56.49.30]:63591: 535 Incorrect authentication data ([email protected])
2026-04-06 14:02:04 dovecot_plain authenticator failed for H=([10.21.18.242]) [212.56.49.30]:7556: 535 Incorrect authentication data ([email protected])
2026-04-06 14:02:06 dovecot_login authenticator failed for H=([10.21.18.242]) [212.56.49.30]:7556: 535 Incorrect authentication data ([email protected])
2026-04-06 14:02:37 dovecot_plain authenticator failed for H=([10.21.18.242]) [212.56.49.30]:48935: 535 Incorrect authentication data ([email protected])
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Port Scan
Hacking
Brute-Force
Exploited Host
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Anonymous
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Failed login attempt detected by Fail2Ban in plesk-postfix jail
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Brute-Force
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π§π·
SvrAdmin
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[101] (smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Po ...
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[101] (smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-03-25 06:26:17 dovecot_plain authenticator failed for H=([10.21.18.7]) [212.56.49.30]:49441: 535 Incorrect authentication data ([email protected])
2026-03-25 06:26:23 dovecot_login authenticator failed for H=([10.21.18.7]) [212.56.49.30]:49441: 535 Incorrect authentication data ([email protected])
2026-03-25 06:26:31 dovecot_plain authenticator failed for H=([10.21.18.7]) [212.56.49.30]:42253: 535 Incorrect authentication data ([email protected])
2026-03-25 06:26:33 dovecot_login authenticator failed for H=([10.21.18.7]) [212.56.49.30]:42253: 535 Incorrect authentication data ([email protected])
2026-03-25 06:26:43 dovecot_plain authenticator failed for H=([10.21.18.7]) [212.56.49.30]:47298: 535 Incorrect authentication data ([email protected])
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Port Scan
Hacking
Brute-Force
Exploited Host
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π³π±
rroethof
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(smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Ports: * ...
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(smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: 1; Trigger: LF_SMTPAUTH; Logs: 2026-03-25 10:25:13 plain authenticator failed for H=([10.21.18.7]) [212.56.49.30]: 535 Incorrect authentication data ([email protected])
2026-03-25 10:25:14 login authenticator failed for H=([10.21.18.7]) [212.56.49.30]: 535 Incorrect authentication data ([email protected])
2026-03-25 10:25:21 plain authenticator failed for H=([10.21.18.7]) [212.56.49.30]: 535 Incorrect authentication data ([email protected])
2026-03-25 10:25:21 login authenticator failed for H=([10.21.18.7]) [212.56.49.30]: 535 Incorrect authentication data ([email protected])
2026-03-25 10:25:23 plain authenticator failed for H=([10.21.18.7]) [212.56.49.30]: 535 Incorrect authentication data ([email protected])
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Spoofing
Brute-Force
Bad Web Bot
Web App Attack
SSH
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π¨πΏ
lp
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Email account brute force: 6 attempts were recorded from 212.56.49.30
2026-03-24T21:14:43+01:00 warn ...
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Email account brute force: 6 attempts were recorded from 212.56.49.30
2026-03-24T21:14:43+01:00 warning: unknown[212.56.49.30]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-03-24T21:14:43+01:00 warning: unknown[212.56.49.30]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-03-24T21:14:44+01:00 warning: unknown[212.56.49.30]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-03-24T21:14:44+01:00 warning: unknown[212.56.49.30]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-03-24T21:14:52+01:00 warning: unknown[212.56.49.30]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-03-24
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Brute-Force
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π¨π΄
conexcol
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(smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs
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Brute-Force
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Anonymous
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Unauthorized connection attempt detected in the last 24 hours
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Hacking
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Anonymous
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Unauthorized connection attempt detected in the last 24 hours
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Hacking
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πΊπΈ
integrantservices.com
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(smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-)
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Brute-Force
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πΊπΈ
bigscoots.com
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(smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Ports: 2 ...
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(smtpauth) Failed SMTP AUTH login from 212.56.49.30 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-03-04 19:59:40 dovecot_plain authenticator failed for H=([10.21.18.108]) [212.56.49.30]:27301: 535 Incorrect authentication data ([email protected])
2026-03-04 19:59:46 dovecot_login authenticator failed for H=([10.21.18.108]) [212.56.49.30]:27301: 535 Incorrect authentication data ([email protected])
2026-03-04 19:59:52 dovecot_plain authenticator failed for H=([10.21.18.108]) [212.56.49.30]:16032: 535 Incorrect authentication data ([email protected])
2026-03-04 19:59:59 dovecot_login authenticator failed for H=([10.21.18.108]) [212.56.49.30]:16032: 535 Incorrect authentication data ([email protected])
2026-03-04 20:00:07 dovecot_plain authenticator failed for H=([10.21.18.108]) [212.56.49.30]:15390: 535 Incorrect authentication data ([email protected])
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Brute-Force
SSH
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π«π·
SpaceHost-Server
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Mar 5 01:57:35 pegasus postfix/smtpd[434890]: warning: unknown[212.56.49.30]: SASL CRAM-MD5 authent ...
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Mar 5 01:57:35 pegasus postfix/smtpd[434890]: warning: unknown[212.56.49.30]: SASL CRAM-MD5 authentication failed: authentication failure, [email protected]
Mar 5 01:57:35 pegasus postfix/smtpd[434890]: warning: unknown[212.56.49.30]: SASL PLAIN authentication failed: authentication failure, [email protected]
Mar 5 01:57:36 pegasus postfix/smtpd[434890]: warning: unknown[212.56.49.30]: SASL LOGIN authentication failed: authentication failure, [email protected]
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Hacking
Brute-Force
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