This IP address has been reported a total of
37
times from
29 distinct
sources.
121.237.51.147 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.
Reporter
IoA Timestamp (UTC)
Comment
Categories
Anonymous
Jun 7 13:58:38 server21 sshd-session[26468]: User root from 121.237.51.147 not allowed because not ...
show moreJun 7 13:58:38 server21 sshd-session[26468]: User root from 121.237.51.147 not allowed because not listed in AllowUsers
Jun 7 13:59:04 server21 sshd-session[26497]: Invalid user git from 121.237.51.147 port 45712
Jun 7 13:59:27 server21 sshd-session[26516]: Invalid user oracle from 121.237.51.147 port 47803
Jun 7 13:59:56 server21 sshd-session[26525]: User root from 121.237.51.147 not allowed because not listed in AllowUsers
Jun 7 14:00:19 server21 sshd-session[26959]: Invalid user david from 121.237.51.147 port 47721
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2026-06-05T21:48:19.652194+02:00 srv03 sshd[867641]: Invalid user tyli from 121.237.51.147 port 4612 ...
show more2026-06-05T21:48:19.652194+02:00 srv03 sshd[867641]: Invalid user tyli from 121.237.51.147 port 46124
2026-06-05T21:48:41.493529+02:00 srv03 sshd[867673]: Invalid user skaner from 121.237.51.147 port 49134
2026-06-05T21:49:04.334258+02:00 srv03 sshd[867766]: Invalid user mftende from 121.237.51.147 port 49056
2026-06-05T21:50:36.182999+02:00 srv03 sshd[868186]: Invalid user tsserver from 121.237.51.147 port 49058
2026-06-05T21:50:52.665304+02:00 srv03 sshd[868223]: Invalid user sysman from 121.237.51.147 port 47234
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2026-06-05T17:28:41.102082+02:00 admin sshd[1581639]: pam_unix(sshd:auth): authentication failure; l ...
show more2026-06-05T17:28:41.102082+02:00 admin sshd[1581639]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.237.51.147
2026-06-05T17:28:42.674332+02:00 admin sshd[1581639]: Failed password for invalid user tyrel from 121.237.51.147 port 46292 ssh2
2026-06-05T17:29:09.199224+02:00 admin sshd[1581672]: Invalid user operator from 121.237.51.147 port 47986
2026-06-05T17:29:09.391098+02:00 admin sshd[1581672]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.237.51.147
2026-06-05T17:29:11.806628+02:00 admin sshd[1581672]: Failed password for invalid user operator from 121.237.51.147 port 47986 ssh2
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Brute-Force
SSH
Anonymous
Jun 5 12:11:31 fell sshd[328150]: User root from 121.237.51.147 not allowed because not listed in A ...
show moreJun 5 12:11:31 fell sshd[328150]: User root from 121.237.51.147 not allowed because not listed in AllowUsers
Jun 5 12:11:56 fell sshd[328152]: User root from 121.237.51.147 not allowed because not listed in AllowUsers
Jun 5 12:12:29 fell sshd[328157]: Invalid user postgres from 121.237.51.147 port 46083
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2026-06-04T19:48:16.946551+02:00 mail.chill.at sshd[1094486]: pam_unix(sshd:auth): authentication fa ...
show more2026-06-04T19:48:16.946551+02:00 mail.chill.at sshd[1094486]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.237.51.147
2026-06-04T19:48:18.709383+02:00 mail.chill.at sshd[1094486]: Failed password for invalid user mm from 121.237.51.147 port 47940 ssh2
2026-06-04T19:48:38.943400+02:00 mail.chill.at sshd[1094505]: Invalid user openproject from 121.237.51.147 port 49013
2026-06-04T19:48:39.158083+02:00 mail.chill.at sshd[1094505]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.237.51.147
2026-06-04T19:48:41.413473+02:00 mail.chill.at sshd[1094505]: Failed password for invalid user openproject from 121.237.51.147 port 49013 ssh2
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2026-06-04T01:37:02.075845+02:00 vmi2775508 kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:5c:a7:cf:c ...
show more2026-06-04T01:37:02.075845+02:00 vmi2775508 kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:5c:a7:cf:c0:69:11:b3:85:db:08:00 SRC=121.237.51.147 DST=155.133.26.57 LEN=60 TOS=0x00 PREC=0x00 TTL=44 ID=28158 DF PROTO=TCP SPT=48566 DPT=2222 WINDOW=29200 RES=0x00 SYN URGP=0
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Port Scan
Anonymous
Jun 3 12:15:19 server20 sshd-session[29344]: User root from 121.237.51.147 not allowed because not ...
show moreJun 3 12:15:19 server20 sshd-session[29344]: User root from 121.237.51.147 not allowed because not listed in AllowUsers
Jun 3 12:15:42 server20 sshd-session[29745]: User root from 121.237.51.147 not allowed because not listed in AllowUsers
Jun 3 12:16:05 server20 sshd-session[30539]: Invalid user liuj from 121.237.51.147 port 46621
Jun 3 12:16:29 server20 sshd-session[30891]: Invalid user shapp from 121.237.51.147 port 48270
Jun 3 12:16:54 server20 sshd-session[31265]: User root from 121.237.51.147 not allowed because not listed in AllowUsers
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