This IP address has been reported a total of
16
times from
11 distinct
sources.
138.122.23.172 was first reported on
, and the most recent report was
.
In the last 60 days, the top reporter locations were:
Brazil
with 6
reports;
United States of America
with 3
reports;
Germany
with 2
reports.
The most common categories in these recent reports were:
Brute-Force
16
times;
SSH
8
times;
Email Spam
3
times.
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.
(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the l ...
show more(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the last 300 secs
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2026-10-12T18:47:48.301917+00:00 mail postfix/submission/smtpd[1707010]: lost connection after CONNE ...
show more2026-10-12T18:47:48.301917+00:00 mail postfix/submission/smtpd[1707010]: lost connection after CONNECT from unknown[138.122.23.172]
2026-10-12T18:47:52.492111+00:00 mail postfix/submission/smtpd[1707012]: warning: unknown[138.122.23.172]: SASL PLAIN authentication failed: (reason unavailable), sasl_username=nilo
2026-10-12T18:47:58.451266+00:00 mail postfix/submission/smtpd[1707012]: warning: unknown[138.122.23.172]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=nilo
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Email Spam
Brute-Force
Anonymous
Failed login attempt detected by Fail2Ban in plesk-postfix jail
(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the l ...
show more(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 12 08:01:36 flora sshd-session[1764935]: Invalid user thiago from 138.122.23.172 port 3948
Oct 12 08:01:36 flora sshd-session[1764942]: Invalid user thiago from 138.122.23.172 port 4178
Oct 12 08:01:36 flora sshd-session[1764947]: Invalid user admin from 138.122.23.172 port 3184
Oct 12 08:01:36 flora sshd-session[1764953]: Invalid user admin from 138.122.23.172 port 3284
Oct 12 08:01:37 flora sshd-session[1764962]: Invalid user ubuntu from 138.122.23.172 port 4669
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2026-10-12T10:08:01.190254+00:00 aurora sshd[95586]: pam_unix(sshd:auth): authentication failure; lo ...
show more2026-10-12T10:08:01.190254+00:00 aurora sshd[95586]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.122.23.172 user=root
2026-10-12T10:08:03.536714+00:00 aurora sshd[95586]: Failed password for root from 138.122.23.172 port 3612 ssh2
2026-10-12T10:08:06.119904+00:00 aurora sshd[98369]: Invalid user tiagosilva from 138.122.23.172 port 3399
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Attack blocked by firewall: SMTP authentication brute-force. Blocked by firewall on 5 different host ...
show moreAttack blocked by firewall: SMTP authentication brute-force. Blocked by firewall on 5 different hosting servers. Protocol TCP, port 25, 465, 587 (SMTP). Automated report.
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(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the l ...
show more(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 12 03:47:17 luna sshd-session[6214]: Invalid user paula from 138.122.23.172 port 4609
Oct 12 03:47:18 luna sshd-session[6220]: Invalid user paula from 138.122.23.172 port 3475
Oct 12 03:47:18 luna sshd-session[6222]: Invalid user admin from 138.122.23.172 port 4506
Oct 12 03:47:18 luna sshd-session[6225]: Invalid user admin from 138.122.23.172 port 4773
Oct 12 03:47:18 luna sshd-session[6230]: Invalid user ubuntu from 138.122.23.172 port 4106
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(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the l ...
show more(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 12 03:30:20 diana sshd-session[3112157]: Invalid user jorge from 138.122.23.172 port 3971
Oct 12 03:30:21 diana sshd-session[3112214]: Invalid user ubuntu from 138.122.23.172 port 4568
Oct 12 03:30:21 diana sshd-session[3112218]: Invalid user ubuntu from 138.122.23.172 port 4003
2026-10-12 03:30:22 dovecot_plain authenticator failed for H=([192.168.18.188]) [138.122.23.172]:3951: 535 Incorrect authentication data (set_id=jorge)
Oct 12 03:30:21 diana sshd-session[3112223]: Invalid user usuario from 138.122.23.172 port 4023
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(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the l ...
show more(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 12 02:41:03 fortuna sshd-session[2571905]: Invalid user comercial from 138.122.23.172 port 3898
Oct 12 02:41:03 fortuna sshd-session[2571908]: Invalid user comercial from 138.122.23.172 port 4404
Oct 12 02:41:03 fortuna sshd-session[2571914]: Invalid user admin from 138.122.23.172 port 3094
Oct 12 02:41:03 fortuna sshd-session[2571917]: Invalid user admin from 138.122.23.172 port 5000
Oct 12 02:41:04 fortuna sshd-session[2571920]: Invalid user ubuntu from 138.122.23.172 port 3530
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(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the l ...
show more(sshd) Failed SSH login from 138.122.23.172 (BR/Brazil/138.122.23.172.cabolinque.com.br): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct 12 02:05:51 aurora sshd-session[1655017]: Invalid user divino from 138.122.23.172 port 3638
Oct 12 02:05:52 aurora sshd-session[1655244]: Invalid user divino from 138.122.23.172 port 4230
Oct 12 02:05:52 aurora sshd-session[1655468]: Invalid user admin from 138.122.23.172 port 3251
Oct 12 02:05:52 aurora sshd-session[1655634]: Invalid user admin from 138.122.23.172 port 3464
Oct 12 02:05:52 aurora sshd-session[1655771]: Invalid user ubuntu from 138.122.23.172 port 4986
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