🇹🇭
thaizone.com
2026-04-18 13:33:29
(6 months ago)
Mail credential brute-force attack (SM5) #1
Email Spam
Brute-Force
🇹🇭
thaizone.com
2026-04-03 22:36:51
(6 months ago)
Mail credential brute-force attack (SM5) #1
Email Spam
Brute-Force
🇧🇷
hostseries
2026-04-03 07:52:13
(6 months ago)
Trigger: LF_SMTPAUTH
Brute-Force
2026-04-03 04:30:50
(6 months ago)
Failed login attempt detected by Fail2Ban in plesk-postfix jail
Brute-Force
🇨🇦
polycoda
2026-04-01 05:49:02
(6 months ago)
AutoBlock: 🔐 SMTP Auth Failure (Decay-Based)
Brute-Force
🇺🇸
cjarvis
2026-03-31 12:48:00
(6 months ago)
Have over 6000 rejected emails from this ip address
Email Spam
Spoofing
Brute-Force
🇮🇱
Dolphi
2026-03-30 17:25:20
(6 months ago)
Mail server brute force
Email Spam
Brute-Force
🇺🇸
Matthew Ping
2026-03-28 22:15:03
(6 months ago)
SMTP authentication brute force blocked by CSF/LFD on wp3.
Email Spam
Brute-Force
🇮🇹
clamehost.it
2026-03-28 13:59:06
(6 months ago)
Automatic report - Brute Force attack using this IP address
Brute-Force
🇺🇸
bigscoots.com
2026-03-25 10:15:58
(6 months ago)
(PERMBLOCK) 166.0.106.189 (CA/Canada/166-0-106-189.ips.acedatacenter.com) has had more than 4 temp b ...
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(PERMBLOCK) 166.0.106.189 (CA/Canada/166-0-106-189.ips.acedatacenter.com) has had more than 4 temp blocks in the last 86400 secs; Ports: *; Direction: 1; Trigger: LF_PERMBLOCK_COUNT; Logs:
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Brute-Force
SSH
🇺🇸
bigscoots.com
2026-03-25 00:49:39
(6 months ago)
(smtpauth) Failed SMTP AUTH login from 166.0.106.189 (CA/Canada/166-0-106-189.ips.acedatacenter.com) ...
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(smtpauth) Failed SMTP AUTH login from 166.0.106.189 (CA/Canada/166-0-106-189.ips.acedatacenter.com): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-03-24 20:48:49 dovecot_login authenticator failed for H=(bNxWDC) [166.0.106.189]:52492: 535 Incorrect authentication data (set_id=amanda)
2026-03-24 20:48:55 dovecot_login authenticator failed for H=(XMk9iCJDjg) [166.0.106.189]:52633: 535 Incorrect authentication data (set_id=amanda)
2026-03-24 20:49:05 dovecot_login authenticator failed for H=(VYijzcafSh) [166.0.106.189]:52960: 535 Incorrect authentication data (set_id=amanda)
2026-03-24 20:49:22 dovecot_login authenticator failed for H=(3RAvBG) [166.0.106.189]:53521: 535 Incorrect authentication data (set_id=amanda)
2026-03-24 20:49:39 dovecot_login authenticator failed for H=(LIIBM99dpj) [166.0.106.189]:54488: 535 Incorrect authentication data (set_id=amanda)
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Brute-Force
SSH
🇺🇸
bigscoots.com
2026-03-24 14:13:06
(6 months ago)
(smtpauth) Failed SMTP AUTH login from 166.0.106.189 (CA/Canada/166-0-106-189.ips.acedatacenter.com) ...
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(smtpauth) Failed SMTP AUTH login from 166.0.106.189 (CA/Canada/166-0-106-189.ips.acedatacenter.com): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-03-24 10:12:13 dovecot_login authenticator failed for H=(SFd0BEjTV) [166.0.106.189]:53605: 535 Incorrect authentication data (set_id=alex)
2026-03-24 10:12:19 dovecot_login authenticator failed for H=(R7ZouwhufX) [166.0.106.189]:53713: 535 Incorrect authentication data (set_id=alex)
2026-03-24 10:12:29 dovecot_login authenticator failed for H=(1NJ2S7Zuu) [166.0.106.189]:53966: 535 Incorrect authentication data (set_id=alex)
2026-03-24 10:12:46 dovecot_login authenticator failed for H=(P3X11C) [166.0.106.189]:54386: 535 Incorrect authentication data (set_id=alex)
2026-03-24 10:13:03 dovecot_login authenticator failed for H=(N78JlE) [166.0.106.189]:55076: 535 Incorrect authentication data (set_id=alex)
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Brute-Force
SSH
🇫🇷
✨
2026-03-24 00:23:07
(6 months ago)
Rule : SMTP
03/24/26 02:23:25 1396 166.0.106.189 ***hidden-privacy*** ESMTP MailEnable Service, V ...
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Rule : SMTP
03/24/26 02:23:25 1396 166.0.106.189 ***hidden-privacy*** ESMTP MailEnable Service, Version: 10.51-- ready at 03/24/26 02:23:25 90 0
03/24/26 02:23:26 1396 166.0.106.189 EHLO EHLO qOxCYnD ***hidden-privacy*** [166.0.106.189], this server offers 5 extensions 229 14
03/24/26 02:23:26 1396 166.0.106.189 STARTTLS STARTTLS 220 Ready to start TLS 24 10
03/24/26 02:23:26 1396 166.0.106.189 EHLO EHLO qOxCYnD ***hidden-privacy*** [166.0.106.189], this server offers 5 extensions 139 14
03/24/26 02:23:26 1396 166.0.106.189 AUTH AUTH LOGIN 334 VXNlcm5hbWU6 18 12
03/24/26 02:23:26 1396 166.0.106.189 AUTH {blank} 334 UGFzc3dvcmQ6 18 10 abdul
03/24/26 02:23:27 1396 166.0.106.189 AUTH {blank} 535 Invalid Username or Password 34 10 abdul
03/24/26 02:23:30 1396 166.0.106.189 ***hidden-privacy*** ESMTP MailEnable Service, Version: 10.51-- ready at 03/24/26 02:23:30 90 0
03/24/26 02:23:30 1396 166.0.106.189 EHLO EHLO 7FgNoMJ ***hidden-privacy*** [166.0.106.189], this server [TRUNCATE]
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Email Spam
Port Scan
Spoofing
🇮🇹
alph44
2026-03-23 11:53:04
(6 months ago)
(smtpauth) Failed SMTP AUTH login from 166.0.106.189 (CA/Canada/166-0-106-189.ips.acedatacenter.com) ...
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(smtpauth) Failed SMTP AUTH login from 166.0.106.189 (CA/Canada/166-0-106-189.ips.acedatacenter.com): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs:
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Brute-Force
2026-03-23 11:47:58
(6 months ago)
Multiple SASL authentication failures.
Brute-Force