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๐บ๐ธ
Ghost Rider
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RdpGuard detected brute-force attempt on SMTP
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Brute-Force
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๐ฎ๐ฉ
xveil
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2026-04-21T22:32:21.884601 mail-honeypot postfix/submission/smtpd[21022]: warning: unknown[212.56.49 ...
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2026-04-21T22:32:21.884601 mail-honeypot postfix/submission/smtpd[21022]: warning: unknown[212.56.49.163]: SASL PLAIN authentication failed: authentication failure
...
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Brute-Force
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๐บ๐ธ
PTC_Services
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(smtpauth) Failed SMTP AUTH login from 212.56.49.163 (CA/Canada/Quebec/Montreal/-): 5 in the last 36 ...
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(smtpauth) Failed SMTP AUTH login from 212.56.49.163 (CA/Canada/Quebec/Montreal/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-04-17 07:27:08 dovecot_plain authenticator failed for H=([10.4.18.197]) [212.56.49.163]:60104: 535 Incorrect authentication data ([email protected])
2026-04-17 07:27:14 dovecot_login authenticator failed for H=([10.4.18.197]) [212.56.49.163]:60104: 535 Incorrect authentication data ([email protected])
2026-04-17 07:27:22 dovecot_plain authenticator failed for H=([10.4.18.197]) [212.56.49.163]:10641: 535 Incorrect authentication data ([email protected])
2026-04-17 07:27:24 dovecot_login authenticator failed for H=([10.4.18.197]) [212.56.49.163]:10641: 535 Incorrect authentication data ([email protected])
2026-04-17 07:27:35 dovecot_plain authenticator failed for H=([10.4.18.197]) [212.56.49.163]:11671: 535 Incorrect authentication data ([email protected])
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Port Scan
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Anonymous
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Authentication failure
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Brute-Force
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Anonymous
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(smtpauth) Failed SMTP AUTH login from 212.56.49.163 (CA/Canada/-)
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Brute-Force
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๐ฉ๐ช
Melle
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Unauthorized connection attempt detected from IP address 212.56.49.163
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Brute-Force
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๐บ๐ธ
bigscoots.com
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(smtpauth) Failed SMTP AUTH login from 212.56.49.163 (CA/Canada/-): 5 in the last 3600 secs; Ports: ...
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(smtpauth) Failed SMTP AUTH login from 212.56.49.163 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-15 03:56:40 dovecot_plain authenticator failed for H=([10.4.18.197]) [212.56.49.163]:5262: 535 Incorrect authentication data ([email protected])
2026-04-15 03:56:46 dovecot_login authenticator failed for H=([10.4.18.197]) [212.56.49.163]:5262: 535 Incorrect authentication data ([email protected])
2026-04-15 03:56:53 dovecot_plain authenticator failed for H=([10.4.18.197]) [212.56.49.163]:57323: 535 Incorrect authentication data ([email protected])
2026-04-15 03:56:55 dovecot_login authenticator failed for H=([10.4.18.197]) [212.56.49.163]:57323: 535 Incorrect authentication data ([email protected])
2026-04-15 03:57:09 dovecot_plain authenticator failed for H=([10.4.18.197]) [212.56.49.163]:50691: 535 Incorrect authentication data ([email protected])
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Brute-Force
SSH
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๐จ๐ฟ
lp
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Email account brute force: 4 attempts were recorded from 212.56.49.163
2026-04-07T14:00:09+02:00 war ...
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Email account brute force: 4 attempts were recorded from 212.56.49.163
2026-04-07T14:00:09+02:00 warning: unknown[212.56.49.163]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-07T14:00:10+02:00 warning: unknown[212.56.49.163]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-04-07T14:00:11+02:00 warning: unknown[212.56.49.163]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-07T14:00:11+02:00 warning: unknown[212.56.49.163]: SASL LOGIN authentication failed: authentication failure, [email protected]
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Brute-Force
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Anonymous
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Authentication failure
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Brute-Force
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๐ซ๐ท
otiima
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Apr 7 11:37:47 box postfix/submission/smtpd[3578765]: warning: unknown[212.56.49.163]: SASL PLAIN a ...
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Apr 7 11:37:47 box postfix/submission/smtpd[3578765]: warning: unknown[212.56.49.163]: SASL PLAIN authentication failed:
Apr 7 11:37:53 box postfix/submission/smtpd[3578765]: warning: unknown[212.56.49.163]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
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Brute-Force
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Anonymous
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(smtpauth) Failed SMTP AUTH login from 212.56.49.163 (CA/Canada/-)
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Brute-Force
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๐ฉ๐ช
Nerdscave Hosting
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SMTP brute-force detected by Fail2Ban in plesk-postfix jail
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Email Spam
Brute-Force
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๐ฑ๐ป
user-4736
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Fail2Ban - SASL LOGIN authentication failed / Email auth brute force attack
...
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Brute-Force
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๐บ๐ธ
bigscoots.com
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(smtpauth) Failed SMTP AUTH login from 212.56.49.163 (CA/Canada/-): 5 in the last 3600 secs; Ports: ...
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(smtpauth) Failed SMTP AUTH login from 212.56.49.163 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-03 09:52:25 dovecot_plain authenticator failed for H=([10.4.18.195]) [212.56.49.163]:26779: 535 Incorrect authentication data ([email protected])
2026-04-03 09:52:31 dovecot_login authenticator failed for H=([10.4.18.195]) [212.56.49.163]:26779: 535 Incorrect authentication data ([email protected])
2026-04-03 09:52:37 dovecot_plain authenticator failed for H=([10.4.18.195]) [212.56.49.163]:49586: 535 Incorrect authentication data ([email protected])
2026-04-03 09:52:43 dovecot_login authenticator failed for H=([10.4.18.195]) [212.56.49.163]:49586: 535 Incorrect authentication data ([email protected])
2026-04-03 09:52:51 dovecot_plain authenticator failed for H=([10.4.18.195]) [212.56.49.163]:24107: 535 Incorrect authentication data ([email protected])
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Brute-Force
SSH
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๐ณ๐ด
atluxity
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Apr 3 13:50:20 host1 postfix/submission/smtpd[9190]: warning: unknown[212.56.49.163]: SASL PLAIN au ...
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Apr 3 13:50:20 host1 postfix/submission/smtpd[9190]: warning: unknown[212.56.49.163]: SASL PLAIN authentication failed: authentication failure
Apr 3 13:50:21 host1 postfix/submission/smtpd[9190]: warning: unknown[212.56.49.163]: SASL LOGIN authentication failed: authentication failure
Apr 3 13:50:22 host1 postfix/smtps/smtpd[9191]: warning: unknown[212.56.49.163]: SASL PLAIN authentication failed: authentication failure
...
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Brute-Force
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