Anonymous
2026-08-13 04:31:51
(1 week ago)
Failed login attempt detected by Fail2Ban in plesk-postfix jail
Brute-Force
π©πͺ
Paul Smith
2026-08-09 09:21:30
(2 weeks ago)
Email Auth Brute force attack 2/2 in last day
Brute-Force
Anonymous
2026-08-08 16:39:54
(2 weeks ago)
SMTP brute force - auth failed
Brute-Force
Exploited Host
π©πͺ
MarkGGN
2026-08-08 16:06:21
(2 weeks ago)
SMTP Bruteforce. 2026-08-08T18:06:19.740612+02:00 *.* postfix/smtpd[415520]: warning: unknown[138.94 ...
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SMTP Bruteforce. 2026-08-08T18:06:19.740612+02:00 *.* postfix/smtpd[415520]: warning: unknown[138.94.43.74]: SASL LOGIN authentication failed: authentication failure, sasl_username=srs0
2026-08-08T18:06:21.018093+02:00 *.* postfix/smtpd[415520]: disconnect from unknown[138.94.43.74] ehlo=2 starttls=1 auth=0/1 commands=3/4
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Brute-Force
πΉπ·
ferique
2026-08-08 14:50:44
(2 weeks ago)
Real-time Intercept: SMTP attack. Reference: 2026-08-08 17:50:33.2673 Login failure: 138.94.43.74 S ...
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Real-time Intercept: SMTP attack. Reference: 2026-08-08 17:50:33.2673 Login failure: 138.94.43.74 SMTP 2
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Brute-Force
Email Spam
π©πͺ
moretrix
2026-08-08 14:30:58
(2 weeks ago)
2026-08-08T16:30:58.031547+02:00 ieyasu.moretrix.com postfix/smtpd[954366]: warning: unknown[138.94. ...
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2026-08-08T16:30:58.031547+02:00 ieyasu.moretrix.com postfix/smtpd[954366]: warning: unknown[138.94.43.74]: SASL LOGIN authentication failed: generic failure, [email protected]
...
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Brute-Force
π¬π§
stom
2026-08-08 14:03:32
(2 weeks ago)
2026-08-08T14:03:30.555260ls.fionamaguire-art.com postfix/smtps/smtpd[5338]: warning: unknown[138.94 ...
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2026-08-08T14:03:30.555260ls.fionamaguire-art.com postfix/smtps/smtpd[5338]: warning: unknown[138.94.43.74]: SASL LOGIN authentication failed: authentication failure
...
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Brute-Force
Email Spam
πΉπ
thaizone.com
2026-08-08 13:40:14
(2 weeks ago)
Password guessing attack (SM11) #5
Email Spam
Brute-Force
πΊπΈ
Rocky Mountain Bioengineering Symposium
2026-08-08 13:32:49
(2 weeks ago)
Aug 8 07:32:48 KORD-B postfix/submission/smtpd[277968]: warning: unknown[138.94.43.74]: SASL LOGIN ...
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Aug 8 07:32:48 KORD-B postfix/submission/smtpd[277968]: warning: unknown[138.94.43.74]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
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Brute-Force
π©πͺ
digico_mt
2026-08-08 12:30:26
(2 weeks ago)
Aug 8 14:30:26 digico postfix/submission/smtpd[330898]: warning: unknown[138.94.43.74]: SASL LOGIN ...
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Aug 8 14:30:26 digico postfix/submission/smtpd[330898]: warning: unknown[138.94.43.74]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
Aug 8 14:30:26 digico postfix/submission/smtpd[330898]: lost connection after AUTH from unknown[138.94.43.74]
Aug 8 14:30:26 digico postfix/submission/smtpd[330898]: disconnect from unknown[138.94.43.74] ehlo=2 starttls=1 auth=0/1 commands=3/4
...
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Port Scan
π³π±
wlt-blocker
2026-08-08 11:39:55
(2 weeks ago)
Attempts to login to mail server with wrong username and/or password
Brute-Force
Anonymous
2026-08-08 11:15:04
(2 weeks ago)
(UserAttack) User Attack From 138.94.43.74 (BR/Brazil/-): 1 in the last 3600 secs; Ports: *; Direct ...
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(UserAttack) User Attack From 138.94.43.74 (BR/Brazil/-): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_CUSTOMTRIGGER; Logs: 2026-08-08 11:14:59 auth_login authenticator failed for ([68.71.251.130]) [138.94.43.74]: 535 Incorrect authentication data ([email protected] )
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Port Scan
π©πͺ
Paul Smith
2026-08-08 09:09:11
(2 weeks ago)
Email Auth Brute force attack 5/5 in last day
Brute-Force
Anonymous
2026-08-08 08:58:08
(2 weeks ago)
2026-08-08T09:58:07.379601+01:00 [masked] postfix/smtps/smtpd[2079543]: warning: unknown[138.94.43.7 ...
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2026-08-08T09:58:07.379601+01:00 [masked] postfix/smtps/smtpd[2079543]: warning: unknown[138.94.43.74]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=pamela@[masked]
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Brute-Force
π©πͺ
lister171254
2026-08-08 08:16:45
(2 weeks ago)
2026-08-08T10:16:45.092148+02:00 thelists postfix/submission/smtpd[2865182]: warning: unknown[138.94 ...
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2026-08-08T10:16:45.092148+02:00 thelists postfix/submission/smtpd[2865182]: warning: unknown[138.94.43.74]: SASL LOGIN authentication failed: (reason unavailable), [email protected]
...
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Hacking