This IP address has been reported a total of
1,799
times from
320 distinct
sources.
81.236.211.54 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.
2026-02-18T07:04:01.691027+00:00 saffron-coral sshd[17955]: pam_unix(sshd:auth): authentication fail ...
show more2026-02-18T07:04:01.691027+00:00 saffron-coral sshd[17955]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.236.211.54
2026-02-18T07:04:03.651065+00:00 saffron-coral sshd[17955]: Failed password for invalid user config from 81.236.211.54 port 41804 ssh2
2026-02-18T07:04:04.840213+00:00 saffron-coral sshd[17955]: Connection closed by invalid user config 81.236.211.54 port 41804 [preauth]
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2026-02-17T19:41:21.379316-05:00 debian sshd[414014]: Failed password for invalid user Nobody from 8 ...
show more2026-02-17T19:41:21.379316-05:00 debian sshd[414014]: Failed password for invalid user Nobody from 81.236.211.54 port 47562 ssh2
2026-02-17T19:42:26.577680-05:00 debian sshd[415939]: Invalid user guest from 81.236.211.54 port 38136
2026-02-17T19:42:26.581141-05:00 debian sshd[415939]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.236.211.54
2026-02-17T19:42:28.790716-05:00 debian sshd[415939]: Failed password for invalid user guest from 81.236.211.54 port 38136 ssh2
2026-02-17T19:46:35.644472-05:00 debian sshd[421873]: Invalid user test from 81.236.211.54 port 57814
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2026-02-17T18:58:32.782561-05:00 debian sshd[352962]: Failed password for invalid user support from ...
show more2026-02-17T18:58:32.782561-05:00 debian sshd[352962]: Failed password for invalid user support from 81.236.211.54 port 34128 ssh2
2026-02-17T19:03:56.727907-05:00 debian sshd[360516]: Invalid user support from 81.236.211.54 port 36252
2026-02-17T19:03:56.731649-05:00 debian sshd[360516]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.236.211.54
2026-02-17T19:03:59.150577-05:00 debian sshd[360516]: Failed password for invalid user support from 81.236.211.54 port 36252 ssh2
2026-02-17T19:04:55.726672-05:00 debian sshd[361901]: Invalid user support from 81.236.211.54 port 51984
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(UserAttack) User Attack From 81.236.211.54 (SE/Sweden/81-236-211-54-no2550.tbcn.telia.com): 1 in t ...
show more(UserAttack) User Attack From 81.236.211.54 (SE/Sweden/81-236-211-54-no2550.tbcn.telia.com): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_CUSTOMTRIGGER; Logs: 2026-02-16 11:49:43 auth_login authenticator failed for 81-236-211-54-no2550.tbcn.telia.com [81.236.211.54]: 535 Incorrect authentication data (set_id=dvjuvoilbakbv)
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2026-02-15T19:06:59.309429-05:00 debian sshd[336127]: Invalid user administrator from 81.236.211.54 ...
show more2026-02-15T19:06:59.309429-05:00 debian sshd[336127]: Invalid user administrator from 81.236.211.54 port 56940
2026-02-15T19:06:59.313387-05:00 debian sshd[336127]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.236.211.54
2026-02-15T19:07:01.091829-05:00 debian sshd[336127]: Failed password for invalid user administrator from 81.236.211.54 port 56940 ssh2
2026-02-15T19:10:02.773898-05:00 debian sshd[340332]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.236.211.54 user=debian
2026-02-15T19:10:04.673513-05:00 debian sshd[340332]: Failed password for debian from 81.236.211.54 port 60056 ssh2
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Brute-Force
SSH
Showing 1666 to
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