This IP address has been reported a total of
38
times from
34 distinct
sources.
121.141.243.81 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.
2026-06-12T08:00:44.328740+00:00 nlfr1 sshd[2031176]: error: maximum authentication attempts exceede ...
show more2026-06-12T08:00:44.328740+00:00 nlfr1 sshd[2031176]: error: maximum authentication attempts exceeded for root from 121.141.243.81 port 39172 ssh2 [preauth]
2026-06-12T08:00:48.213856+00:00 nlfr1 sshd[2032788]: error: maximum authentication attempts exceeded for root from 121.141.243.81 port 39878 ssh2 [preauth]
2026-06-12T08:00:51.999725+00:00 nlfr1 sshd[2035452]: error: maximum authentication attempts exceeded for root from 121.141.243.81 port 40576 ssh2 [preauth]
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2026-06-12T12:56:05.859970+05:30 ittifakordusu sshd-session[2303758]: Failed password for root from ...
show more2026-06-12T12:56:05.859970+05:30 ittifakordusu sshd-session[2303758]: Failed password for root from 121.141.243.81 port 52310 ssh2
2026-06-12T12:56:07.662745+05:30 ittifakordusu sshd-session[2303758]: Failed password for root from 121.141.243.81 port 52310 ssh2
2026-06-12T12:56:10.070060+05:30 ittifakordusu sshd-session[2303758]: Failed password for root from 121.141.243.81 port 52310 ssh2
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2026-06-12T00:08:23.828011-07:00 shadownetworks.org sshd[1135022]: Failed password for root from 121 ...
show more2026-06-12T00:08:23.828011-07:00 shadownetworks.org sshd[1135022]: Failed password for root from 121.141.243.81 port 38516 ssh2
2026-06-12T00:08:27.774531-07:00 shadownetworks.org sshd[1135022]: Failed password for root from 121.141.243.81 port 38516 ssh2
2026-06-12T00:08:30.045128-07:00 shadownetworks.org sshd[1135022]: Failed password for root from 121.141.243.81 port 38516 ssh2
2026-06-12T00:08:32.333899-07:00 shadownetworks.org sshd[1135022]: Failed password for root from 121.141.243.81 port 38516 ssh2
2026-06-12T00:08:34.609138-07:00 shadownetworks.org sshd[1135022]: Failed password for root from 121.141.243.81 port 38516 ssh2
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2026-06-12T14:29:38.998823+08:00 twy-ubuntu sshd[555831]: error: maximum authentication attempts exc ...
show more2026-06-12T14:29:38.998823+08:00 twy-ubuntu sshd[555831]: error: maximum authentication attempts exceeded for root from 121.141.243.81 port 41960 ssh2 [preauth]
2026-06-12T14:29:40.176037+08:00 twy-ubuntu sshd[555833]: error: maximum authentication attempts exceeded for root from 121.141.243.81 port 42174 ssh2 [preauth]
2026-06-12T14:29:41.327163+08:00 twy-ubuntu sshd[555836]: error: maximum authentication attempts exceeded for root from 121.141.243.81 port 42380 ssh2 [preauth]
2026-06-12T14:29:44.086619+08:00 twy-ubuntu sshd[555840]: Invalid user admin from 121.141.243.81 port 42836
2026-06-12T14:29:44.430707+08:00 twy-ubuntu sshd[555840]: error: maximum authentication attempts exceeded for invalid user admin from 121.141.243.81 port 42836 ssh2 [preauth]
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Jun 12 03:00:59 proxy-03 sshd[1107355]: pam_unix(sshd:auth): authentication failure; logname= uid=0 ...
show moreJun 12 03:00:59 proxy-03 sshd[1107355]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.141.243.81 user=root
Jun 12 03:01:01 proxy-03 sshd[1107355]: Failed password for root from 121.141.243.81 port 51058 ssh2
Jun 12 03:01:16 proxy-03 sshd[1107355]: Failed password for root from 121.141.243.81 port 51058 ssh2
Jun 12 03:01:16 proxy-03 sshd[1107355]: Failed password for root from 121.141.243.81 port 51058 ssh2
Jun 12 03:01:20 proxy-03 sshd[1107355]: Failed password for root from 121.141.243.81 port 51058 ssh2
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2026-06-12T05:46:20.633336+00:00 web3.mattps.com sshd[3593043]: Failed password for root from 121.14 ...
show more2026-06-12T05:46:20.633336+00:00 web3.mattps.com sshd[3593043]: Failed password for root from 121.141.243.81 port 40054 ssh2
2026-06-12T05:46:24.626268+00:00 web3.mattps.com sshd[3593043]: Failed password for root from 121.141.243.81 port 40054 ssh2
2026-06-12T05:46:27.364582+00:00 web3.mattps.com sshd[3593043]: Failed password for root from 121.141.243.81 port 40054 ssh2
2026-06-12T05:46:31.704635+00:00 web3.mattps.com sshd[3593043]: Failed password for root from 121.141.243.81 port 40054 ssh2
2026-06-12T05:46:35.715402+00:00 web3.mattps.com sshd[3593043]: Failed password for root from 121.141.243.81 port 40054 ssh2
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Jun 11 23:22:11 b146-InstructorA sshd[161525]: Failed password for root from 121.141.243.81 port 389 ...
show moreJun 11 23:22:11 b146-InstructorA sshd[161525]: Failed password for root from 121.141.243.81 port 38908 ssh2
Jun 11 23:22:14 b146-InstructorA sshd[161525]: Failed password for root from 121.141.243.81 port 38908 ssh2
Jun 11 23:22:17 b146-InstructorA sshd[161525]: Failed password for root from 121.141.243.81 port 38908 ssh2
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Jun 12 04:49:23 agera sshd[1015104]: Failed password for root from 121.141.243.81 port 56334 ssh2
Ju ...
show moreJun 12 04:49:23 agera sshd[1015104]: Failed password for root from 121.141.243.81 port 56334 ssh2
Jun 12 04:49:26 agera sshd[1015104]: Failed password for root from 121.141.243.81 port 56334 ssh2
Jun 12 04:49:28 agera sshd[1015104]: Failed password for root from 121.141.243.81 port 56334 ssh2
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Automated report: SSH brute force detected. This IP exceeded the allowed number of failed login atte ...
show moreAutomated report: SSH brute force detected. This IP exceeded the allowed number of failed login attempts (3 attempts).
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2026-06-12T02:53:24.928132+00:00 general-01 sshd[910894]: Failed password for root from 121.141.243. ...
show more2026-06-12T02:53:24.928132+00:00 general-01 sshd[910894]: Failed password for root from 121.141.243.81 port 44412 ssh2
2026-06-12T02:53:28.420342+00:00 general-01 sshd[910894]: Failed password for root from 121.141.243.81 port 44412 ssh2
2026-06-12T02:53:30.471702+00:00 general-01 sshd[910894]: Failed password for root from 121.141.243.81 port 44412 ssh2
2026-06-12T02:53:32.523618+00:00 general-01 sshd[910894]: Failed password for root from 121.141.243.81 port 44412 ssh2
2026-06-12T02:53:34.913752+00:00 general-01 sshd[910894]: Failed password for root from 121.141.243.81 port 44412 ssh2
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2026-06-12T02:08:04.130549+00:00 ubuntu-s-1vcpu-1gb-lon1-01 sshd[2407231]: error: maximum authentica ...
show more2026-06-12T02:08:04.130549+00:00 ubuntu-s-1vcpu-1gb-lon1-01 sshd[2407231]: error: maximum authentication attempts exceeded for root from 121.141.243.81 port 53568 ssh2 [preauth]
2026-06-12T02:08:07.590407+00:00 ubuntu-s-1vcpu-1gb-lon1-01 sshd[2407233]: error: maximum authentication attempts exceeded for root from 121.141.243.81 port 54240 ssh2 [preauth]
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