This IP address has been reported a total of
82
times from
60 distinct
sources.
138.75.105.42 was first reported on
, and the most recent report was
.
Recent Reports:
We have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
2026-07-17 00:13:28 no host name found for IP address 138.75.105.42
2026-07-17 00:13:36 login_saslau ...
show more2026-07-17 00:13:28 no host name found for IP address 138.75.105.42
2026-07-17 00:13:36 login_saslauthd_server authenticator failed for ([121.188.193.96]) [138.75.105.42]: 535 Incorrect authentication data (set_id=uucp)
2026-07-17 17:31:33 no host name found for IP address 138.75.105.42
...
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17 Jul 2026 13:50:05UTC:Distributed Brute Force Password Attack (smtp, ftp, imap, pop, ssh) includin ...
show more17 Jul 2026 13:50:05UTC:Distributed Brute Force Password Attack (smtp, ftp, imap, pop, ssh) including ip address 138.75.105.42
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(smtpauth) Failed SMTP AUTH login from 138.75.105.42 (SG/Singapore/-): 5 in the last 3600 secs; Port ...
show more(smtpauth) Failed SMTP AUTH login from 138.75.105.42 (SG/Singapore/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-07-17 11:12:11 dovecot_login authenticator failed for H=([124.13.235.29]) [138.75.105.42]:38029: 535 Incorrect authentication data ([email protected])
2026-07-17 11:24:49 dovecot_login authenticator failed for H=([94.16.17.141]) [138.75.105.42]:38373: 535 Incorrect authentication data (set_id=lindsey017)
2026-07-17 11:26:36 dovecot_login authenticator failed for H=(213.142.48.143-FTTB.planeta.tc) [138.75.105.42]:46808: 535 Incorrect authentication data (set_id=zyx4)
2026-07-17 11:45:46 dovecot_login authenticator failed for H=(187-126-105-145.user.vtal.net.br) [138.75.105.42]:59620: 535 Incorrect authentication data (set_id=audra.earl.of.norbury892)
2026-07-17 12:00:07 dovecot_login authenticator failed for H=([105.247.89.210]) [138.75.105.42]:36888: 535 Incorrect authentication data ([email protected])
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