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๐ง๐ท
ICS Labs
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ICS Labs identified 212.56.49.12 as a malicious indicator from threat intelligence.
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DDoS Attack
Hacking
Exploited Host
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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 212.56.49.12 (CA/Canada/Quebec/Montreal/-/[redacted])
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Brute-Force
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๐ฌ๐ง
chrisw
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Apr 15 21:16:23 l03 postfix/smtpd[17067]: warning: unknown[212.56.49.12]: SASL PLAIN authentication ...
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Apr 15 21:16:23 l03 postfix/smtpd[17067]: warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure
Apr 15 21:16:26 l03 postfix/smtpd[17067]: warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authentication failure
Apr 15 21:16:29 l03 postfix/smtps/smtpd[17079]: warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure
Apr 15 21:16:32 l03 postfix/smtps/smtpd[17079]: warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authentication failure
...
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Web Spam
Brute-Force
Exploited Host
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๐ธ๐ฎ
basing
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2026-04-15 21:06:46 ahl SASL PLAIN auth failed: rhost=212.56.49.12...
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Brute-Force
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๐จ๐ฟ
lp
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Email account brute force: 10 attempts were recorded from 212.56.49.12
2026-04-15T06:42:35+02:00 war ...
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Email account brute force: 10 attempts were recorded from 212.56.49.12
2026-04-15T06:42:35+02:00 warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-15T06:42:36+02:00 warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-04-15T06:42:37+02:00 warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-15T06:42:38+02:00 warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-04-15T06:42:46+02:00 warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-15T06:42:47+02:00 warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authenticati
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Brute-Force
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๐ณ๐ฑ
e.fierstra
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Failed SMTP logins
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Brute-Force
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๐บ๐ธ
bigscoots.com
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(smtpauth) Failed SMTP AUTH login from 212.56.49.12 (CA/Canada/-): 5 in the last 3600 secs; Ports: 2 ...
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(smtpauth) Failed SMTP AUTH login from 212.56.49.12 (CA/Canada/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-04-15 00:46:30 dovecot_plain authenticator failed for H=([10.3.18.163]) [212.56.49.12]:31794: 535 Incorrect authentication data ([email protected])
2026-04-15 00:46:35 dovecot_plain authenticator failed for H=([10.3.18.163]) [212.56.49.12]:30431: 535 Incorrect authentication data ([email protected])
2026-04-15 00:46:36 dovecot_login authenticator failed for H=([10.3.18.163]) [212.56.49.12]:31794: 535 Incorrect authentication data ([email protected])
2026-04-15 00:46:41 dovecot_login authenticator failed for H=([10.3.18.163]) [212.56.49.12]:30431: 535 Incorrect authentication data ([email protected])
2026-04-15 00:46:42 dovecot_plain authenticator failed for H=([10.3.18.163]) [212.56.49.12]:6562: 535 Incorrect authentication data ([email protected])
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Brute-Force
SSH
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๐ฎ๐ฑ
Dolphi
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Mail server brute force
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Email Spam
Brute-Force
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๐ฉ๐ช
swehosting.se
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(smtpauth) Failed SMTP AUTH login from 212.56.49.12 (CA/Canada/-): 5 in the last 3600 secs; Ports: * ...
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(smtpauth) Failed SMTP AUTH login from 212.56.49.12 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: Apr 15 06:40:20 webb postfix/smtpd[19728]: warning: unknown[212.56.49.12]: SASL PLAIN authentication failed:
Apr 15 06:40:24 webb postfix/smtpd[19730]: warning: unknown[212.56.49.12]: SASL PLAIN authentication failed:
Apr 15 06:40:26 webb postfix/smtpd[19728]: warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 15 06:40:34 webb postfix/smtpd[19730]: warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 15 06:40:36 webb postfix/smtpd[19483]: warning: unknown[212.56.49.12]: SASL PLAIN authentication failed:
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Port Scan
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Anonymous
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2026-04-06T14:03:28.179800+01:00 mx1 postfix/submission/smtpd[1298107]: warning: unknown[212.56.49.1 ...
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2026-04-06T14:03:28.179800+01:00 mx1 postfix/submission/smtpd[1298107]: warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: (reason unavailable), sasl_username=promo@***.de
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Brute-Force
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๐ฉ๐ช
grassau.com
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(smtpauth) Failed SMTP AUTH login from 212.56.49.12 (CA/Canada/Quebec/Montreal/-)
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Brute-Force
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๐จ๐ฟ
lp
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Email account brute force: 4 attempts were recorded from 212.56.49.12
2026-04-03T17:35:03+02:00 warn ...
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Email account brute force: 4 attempts were recorded from 212.56.49.12
2026-04-03T17:35:03+02:00 warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-03T17:35:03+02:00 warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-04-03T17:35:08+02:00 warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-04-03T17:35:08+02:00 warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authentication failure, [email protected]
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Brute-Force
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๐ง๐ท
SvrAdmin
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[101] (smtpauth) Failed SMTP AUTH login from 212.56.49.12 (CA/Canada/-): 5 in the last 3600 secs; Po ...
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[101] (smtpauth) Failed SMTP AUTH login from 212.56.49.12 (CA/Canada/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-03-25 06:48:54 dovecot_plain authenticator failed for H=([10.3.18.212]) [212.56.49.12]:35932: 535 Incorrect authentication data ([email protected])
2026-03-25 06:49:00 dovecot_login authenticator failed for H=([10.3.18.212]) [212.56.49.12]:35932: 535 Incorrect authentication data ([email protected])
2026-03-25 06:49:07 dovecot_plain authenticator failed for H=([10.3.18.212]) [212.56.49.12]:38219: 535 Incorrect authentication data ([email protected])
2026-03-25 06:49:09 dovecot_login authenticator failed for H=([10.3.18.212]) [212.56.49.12]:38219: 535 Incorrect authentication data ([email protected])
2026-03-25 06:49:19 dovecot_plain authenticator failed for H=([10.3.18.212]) [212.56.49.12]:22520: 535 Incorrect authentication data ([email protected])
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Port Scan
Hacking
Brute-Force
Exploited Host
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๐จ๐ฟ
lp
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Email account brute force: 6 attempts were recorded from 212.56.49.12
2026-03-19T23:24:45+01:00 warn ...
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Email account brute force: 6 attempts were recorded from 212.56.49.12
2026-03-19T23:24:45+01:00 warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-03-19T23:24:45+01:00 warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-03-19T23:24:46+01:00 warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-03-19T23:24:47+01:00 warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authentication failure, [email protected]
2026-03-19T23:24:58+01:00 warning: unknown[212.56.49.12]: SASL PLAIN authentication failed: authentication failure, [email protected]
2026-03-19T23:24:59+01:00 warning: unknown[212.56.49.12]: SASL LOGIN authentication failed: authenticatio
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Brute-Force
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