This IP address has been reported a total of
219
times from
167 distinct
sources.
181.66.139.236 was first reported on
, and the most recent report was
.
In the last 60 days, the top reporter locations were:
Germany
with 59
reports;
United States of America
with 38
reports;
France
with 27
reports.
The most common categories in these recent reports were:
SSH
201
times;
Brute-Force
200
times;
Port Scan
7
times;
Hacking
4
times;
Web App Attack
3
times;
Other
4
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.
2026-10-19T20:05:20.113062+09:00 nogitsune sshd-session[3087131]: Invalid user alex from 181.66.139. ...
show more2026-10-19T20:05:20.113062+09:00 nogitsune sshd-session[3087131]: Invalid user alex from 181.66.139.236 port 37369
2026-10-19T20:07:40.248496+09:00 nogitsune sshd-session[3087754]: Invalid user sammy from 181.66.139.236 port 40622
2026-10-19T20:08:46.239143+09:00 nogitsune sshd-session[3088040]: Invalid user test from 181.66.139.236 port 39887
2026-10-19T20:10:59.667058+09:00 nogitsune sshd-session[3088653]: Invalid user app from 181.66.139.236 port 9244
2026-10-19T20:12:04.951754+09:00 nogitsune sshd-session[3088924]: Invalid user media from 181.66.139.236 port 38258
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Brute-Force
SSH
Anonymous
2026-10-19T19:08:39.949790+08:00 infs-topslab sshd[451640]: Invalid user test from 181.66.139.236 po ...
show more2026-10-19T19:08:39.949790+08:00 infs-topslab sshd[451640]: Invalid user test from 181.66.139.236 port 37433
2026-10-19T19:10:51.665970+08:00 infs-topslab sshd[451741]: Connection from 181.66.139.236 port 37879 on 172.235.192.168 port 22 rdomain ""
2026-10-19T19:10:53.364224+08:00 infs-topslab sshd[451741]: Invalid user app from 181.66.139.236 port 37879
2026-10-19T19:11:56.721935+08:00 infs-topslab sshd[451771]: Connection from 181.66.139.236 port 38891 on 172.235.192.168 port 22 rdomain ""
2026-10-19T19:11:58.404969+08:00 infs-topslab sshd[451771]: Invalid user media from 181.66.139.236 port 38891
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2026-10-19T19:08:06.245773+08:00 *hostname* sshd-session[605049]: Invalid user sammy from 181.66.139 ...
show more2026-10-19T19:08:06.245773+08:00 *hostname* sshd-session[605049]: Invalid user sammy from 181.66.139.236 port 39424
2026-10-19T19:09:10.648897+08:00 *hostname* sshd-session[605066]: Connection from 181.66.139.236 port 37105 on 182.255.35.19 port 22 rdomain ""
2026-10-19T19:09:12.339675+08:00 *hostname* sshd-session[605066]: Invalid user test from 181.66.139.236 port 37105
2026-10-19T19:11:24.395927+08:00 *hostname* sshd-session[605105]: Connection from 181.66.139.236 port 37656 on 182.255.35.19 port 22 rdomain ""
2026-10-19T19:11:26.096421+08:00 *hostname* sshd-session[605105]: Invalid user app from 181.66.139.236 port 37656
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Oct 19 10:59:58 vps324820 sshd[3888585]: pam_unix(sshd:auth): authentication failure; logname= uid=0 ...
show moreOct 19 10:59:58 vps324820 sshd[3888585]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.66.139.236
Oct 19 11:00:01 vps324820 sshd[3888585]: Failed password for invalid user admin from 181.66.139.236 port 9044 ssh2
Oct 19 11:05:26 vps324820 sshd[3894897]: Invalid user alex from 181.66.139.236 port 10217
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2026-10-19T16:28:51.689427localhost sshd[181643]: Invalid user admin from 181.66.139.236 port 11848
...
show more2026-10-19T16:28:51.689427localhost sshd[181643]: Invalid user admin from 181.66.139.236 port 11848
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Port Scan
Hacking
Brute-Force
Exploited Host
Web App Attack
2026-10-19T10:21:56.804852+00:00 awatef sshd-session[300736]: Invalid user frappe-user from 181.66.1 ...
show more2026-10-19T10:21:56.804852+00:00 awatef sshd-session[300736]: Invalid user frappe-user from 181.66.139.236 port 12152
2026-10-19T10:24:25.427240+00:00 awatef sshd-session[302556]: Invalid user test_1 from 181.66.139.236 port 36842
2026-10-19T10:27:50.833625+00:00 awatef sshd-session[304682]: Invalid user kingbase from 181.66.139.236 port 39263
2026-10-19T10:30:12.765459+00:00 awatef sshd-session[306377]: Invalid user blade from 181.66.139.236 port 11289
2026-10-19T10:32:30.144749+00:00 awatef sshd-session[307849]: Invalid user admin from 181.66.139.236 port 11315
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Oct 19 04:21:08 digamma sshd[478091]: pam_unix(sshd:auth): authentication failure; logname= uid=0 eu ...
show moreOct 19 04:21:08 digamma sshd[478091]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.66.139.236 user=root
Oct 19 04:21:11 digamma sshd[478091]: Failed password for invalid user root from 181.66.139.236 port 38889 ssh2
Oct 19 04:22:38 digamma sshd[478132]: Invalid user frappe-user from 181.66.139.236 port 11396
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2026-10-19T21:22:00.506839+11:00 www.geddy.au sshd-session[1437610]: Invalid user frappe-user from 1 ...
show more2026-10-19T21:22:00.506839+11:00 www.geddy.au sshd-session[1437610]: Invalid user frappe-user from 181.66.139.236 port 12612
2026-10-19T21:22:00.509889+11:00 www.geddy.au sshd-session[1437610]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.66.139.236
2026-10-19T21:22:01.600771+11:00 www.geddy.au sshd-session[1437610]: Failed password for invalid user frappe-user from 181.66.139.236 port 12612 ssh2
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2026-10-19T09:37:41.836397+00:00 ubuntu sshd[76016]: Invalid user azureuser from 181.66.139.236 port ...
show more2026-10-19T09:37:41.836397+00:00 ubuntu sshd[76016]: Invalid user azureuser from 181.66.139.236 port 9158
2026-10-19T09:37:42.031734+00:00 ubuntu sshd[76016]: Received disconnect from 181.66.139.236 port 9158:11: Bye Bye [preauth]
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2026-10-19T09:07:39.303801+00:00 n7e30fa sshd-session[871975]: Invalid user debian from 181.66.139.2 ...
show more2026-10-19T09:07:39.303801+00:00 n7e30fa sshd-session[871975]: Invalid user debian from 181.66.139.236 port 12638
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2026-10-19T08:59:03.740498+00:00 ebi sshd[492706]: pam_unix(sshd:auth): authentication failure; logn ...
show more2026-10-19T08:59:03.740498+00:00 ebi sshd[492706]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.66.139.236 user=root
2026-10-19T08:59:06.188506+00:00 ebi sshd[492706]: Failed password for invalid user root from 181.66.139.236 port 38782 ssh2
2026-10-19T09:03:54.155757+00:00 ebi sshd[492966]: User root from 181.66.139.236 not allowed because not listed in AllowUsers
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Brute-Force
SSH
Anonymous
2026-10-19T07:48:03.765679+00:00 de-fra2-matrix1 sshd[3813537]: Invalid user safeuser from 181.66.13 ...
show more2026-10-19T07:48:03.765679+00:00 de-fra2-matrix1 sshd[3813537]: Invalid user safeuser from 181.66.139.236 port 39991
2026-10-19T07:50:25.437622+00:00 de-fra2-matrix1 sshd[3813583]: Invalid user ftproot from 181.66.139.236 port 10380
2026-10-19T07:51:36.695617+00:00 de-fra2-matrix1 sshd[3813592]: Invalid user test from 181.66.139.236 port 38991
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