🇪🇸
pipeline.es
2026-07-03 08:45:36
(2 weeks ago)
SMTP AUTH credential-stuffing/brute-force against a compromised mailbox account on our Postfix mail ...
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SMTP AUTH credential-stuffing/brute-force against a compromised mailbox account on our Postfix mail infrastructure (pipeline.es), used to relay spam via authenticated SMTP submission.
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Brute-Force
Email Spam
Hacking
2026-06-29 16:51:19
(3 weeks ago)
SMTP brute force - auth failed
Brute-Force
Exploited Host
🇨🇿
lp
2026-06-24 19:50:47
(4 weeks ago)
Email account brute force: 1 attempts were recorded from 188.126.240.55
2026-06-24T20:20:14+02:00 wa ...
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Email account brute force: 1 attempts were recorded from 188.126.240.55
2026-06-24T20:20:14+02:00 warning: unknown[188.126.240.55]: SASL LOGIN authentication failed: authentication failure, [email protected]
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Brute-Force
🇺🇸
mnsf
2026-06-21 19:05:49
(1 month ago)
Abuse Detected (1)
Brute-Force
Web App Attack
🇺🇸
anon333
2026-06-18 16:02:00
(1 month ago)
Spam source, exploited host
Email Spam
Exploited Host
🇺🇸
TPI-Abuse
2026-06-17 02:03:36
(1 month ago)
(mod_security) mod_security (id:225170) triggered by 188.126.240.55 (-): 1 in the last 300 secs; Por ...
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(mod_security) mod_security (id:225170) triggered by 188.126.240.55 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Tue Jun 16 22:03:30.594950 2026] [security2:error] [pid 14638:tid 14638] [client 188.126.240.55:58740] ModSecurity: Access denied with code 403 (phase 2). Operator EQ matched 0 at REQUEST_COOKIES_NAMES. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/26_Apps_WordPress.conf"] [line "155"] [id "225170"] [rev "3"] [msg "COMODO WAF: Sensitive Information Disclosure Vulnerability in WordPress 4.7 (CVE-2017-5487)||ultratecnologia.com|F|2"] [severity "CRITICAL"] [tag "CWAF"] [tag "WordPress"] [hostname "ultratecnologia.com"] [uri "/wp-json/wp/v2/users/"] [unique_id "ajIAclwMPkEI6k4FA3Nw6AAAAAs"], referer: https://ultratecnologia.com/
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Brute-Force
Bad Web Bot
Web App Attack
🇩🇪
DocNetzwerk
2026-06-16 09:31:58
(1 month ago)
(smtpauth) Failed SMTP AUTH login from 188.126.240.55 (SE/Sweden/-)
Brute-Force
2026-06-16 05:34:55
(1 month ago)
Automated abuse report: malicious SMTP/IMAP activity detected by mail server.
Brute-Force
Email Spam
🇺🇸
mnogoweb
2026-06-15 18:28:29
(1 month ago)
(smtpauth) Failed SMTP AUTH login from 188.126.240.55 (SE/Sweden/-): 5 in the last 3600 secs; Ports: ...
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(smtpauth) Failed SMTP AUTH login from 188.126.240.55 (SE/Sweden/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-06-15 11:57:42 login authenticator failed for (aLYY1iyZIO) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
2026-06-15 11:57:52 login authenticator failed for (qpOzNJKcX) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
2026-06-15 12:28:11 login authenticator failed for (aLy618RgAK) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
2026-06-15 12:28:20 login authenticator failed for (BOuFquQV) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
2026-06-15 12:28:28 login authenticator failed for (jdUMtguQs) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
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Port Scan
🇷🇴
iulianh
2026-06-15 17:58:24
(1 month ago)
25,465,587
Brute-Force
SSH
🇮🇹
Inartis
2026-06-11 16:13:06
(1 month ago)
2026-06-11T18:13:05.815777mail1.inartis.it postfix/smtpd[1511719]: warning: unknown[188.126.240.55]: ...
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2026-06-11T18:13:05.815777mail1.inartis.it postfix/smtpd[1511719]: warning: unknown[188.126.240.55]: SASL LOGIN authentication failed: authentication failure, [email protected]
...
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Port Scan
Brute-Force
2026-06-11 14:08:02
(1 month ago)
...
Brute-Force
🇺🇸
mnogoweb
2026-06-11 11:36:22
(1 month ago)
(smtpauth) Failed SMTP AUTH login from 188.126.240.55 (SE/Sweden/-): 5 in the last 3600 secs; Ports: ...
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(smtpauth) Failed SMTP AUTH login from 188.126.240.55 (SE/Sweden/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-06-11 05:25:57 login authenticator failed for (HWwSHWbE) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
2026-06-11 05:26:07 login authenticator failed for (48dTqJ) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
2026-06-11 05:26:55 login authenticator failed for (DazUMItFX1) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
2026-06-11 05:27:32 login authenticator failed for (tzM8syaA) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
2026-06-11 05:36:21 login authenticator failed for (3nQwJ4Td) [188.126.240.55]: 535 Incorrect authentication data ([email protected] )
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Port Scan
🇮🇩
xveil
2026-05-28 22:31:03
(1 month ago)
2026-05-29T05:31:01.746433 mail-honeypot postfix/submission/smtpd[2945]: warning: unknown[188.126.24 ...
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2026-05-29T05:31:01.746433 mail-honeypot postfix/submission/smtpd[2945]: warning: unknown[188.126.240.55]: SASL LOGIN authentication failed: authentication failure
...
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Brute-Force
2026-05-28 18:10:43
(1 month ago)
SMTP brute force - auth failed
Brute-Force
Exploited Host