This IP address has been reported a total of
48
times from
44 distinct
sources.
121.239.173.34 was first reported on
, and the most recent report was
.
In the last 60 days, the top reporter locations were:
Germany
with 13
reports;
United States of America
with 6
reports;
France
with 4
reports.
The most common categories in these recent reports were:
SSH
37
times;
Brute-Force
36
times;
Port Scan
9
times;
Hacking
3
times;
Exploited Host
2
times;
Other
7
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.
2026-10-06T16:04:51.940303+02:00 rc02 sshd[1108631]: pam_unix(sshd:auth): authentication failure; lo ...
show more2026-10-06T16:04:51.940303+02:00 rc02 sshd[1108631]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.239.173.34
2026-10-06T16:04:54.449261+02:00 rc02 sshd[1108631]: Failed password for invalid user test1 from 121.239.173.34 port 11445 ssh2
2026-10-06T16:04:59.068740+02:00 rc02 sshd[1108631]: Failed password for invalid user test1 from 121.239.173.34 port 11445 ssh2
...
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Brute-Force
SSH
Anonymous
2026-10-06T12:28:43.073923+00:00 logger sshd[96460]: Invalid user test1 from 121.239.173.34 port 104 ...
show more2026-10-06T12:28:43.073923+00:00 logger sshd[96460]: Invalid user test1 from 121.239.173.34 port 10457
...
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[DC: IP:151.1.252.27] ntopng alert: blacklisted_server_contact,ndpi_unidirectional_traffic,tcp_no_da ...
show more[DC: IP:151.1.252.27] ntopng alert: blacklisted_server_contact,ndpi_unidirectional_traffic,tcp_no_data_exchanged,ndpi_tcp_issues,tcp_flow_reset,ndpi_probing_attempt
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Oct 6 11:18:32 qube2 sshd[877529]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid ...
show moreOct 6 11:18:32 qube2 sshd[877529]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.239.173.34
Oct 6 11:18:34 qube2 sshd[877529]: Failed password for invalid user test1 from 121.239.173.34 port 10272 ssh2
Oct 6 11:18:39 qube2 sshd[877529]: Failed password for invalid user test1 from 121.239.173.34 port 10272 ssh2
...
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SSH brute-force: 8 failed authentication attempts from this IP within 15 minutes. Detected by log an ...
show moreSSH brute-force: 8 failed authentication attempts from this IP within 15 minutes. Detected by log analysis on our server.
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2026-10-06T08:43:13.689362+02:00 debian-vps sshd-session[88992]: Invalid user test1 from 121.239.173 ...
show more2026-10-06T08:43:13.689362+02:00 debian-vps sshd-session[88992]: Invalid user test1 from 121.239.173.34 port 10318
2026-10-06T08:43:14.868520+02:00 debian-vps sshd-session[88992]: error: maximum authentication attempts exceeded for invalid user test1 from 121.239.173.34 port 10318 ssh2 [preauth]
2026-10-06T08:43:20.477795+02:00 debian-vps sshd-session[88994]: Invalid user test1 from 121.239.173.34 port 10380
2026-10-06T08:43:21.787048+02:00 debian-vps sshd-session[88994]: error: maximum authentication attempts exceeded for invalid user test1 from 121.239.173.34 port 10380 ssh2 [preauth]
2026-10-06T08:43:26.958947+02:00 debian-vps sshd-session[88996]: Invalid user test1 from 121.239.173.34 port 10446
...
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Oct 6 09:18:36 ser162528253480 sshd[1942403]: pam_unix(sshd:auth): authentication failure; logname= ...
show moreOct 6 09:18:36 ser162528253480 sshd[1942403]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.239.173.34
Oct 6 09:18:37 ser162528253480 sshd[1942403]: Failed password for invalid user test1 from 121.239.173.34 port 10241 ssh2
Oct 6 09:18:40 ser162528253480 sshd[1942403]: Failed password for invalid user test1 from 121.239.173.34 port 10241 ssh2
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SSH honeypot detection (Endlessh tarpit, port 22). 1 probe(s) sustained for 0m total hold time. Cons ...
show moreSSH honeypot detection (Endlessh tarpit, port 22). 1 probe(s) sustained for 0m total hold time. Consistent with automated SSH scanning/brute-force. Reported by dotnetdork.dev security honeypot.
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2026-10-05T06:49:19.651011+02:00 web3 sshd-session[109931]: pam_unix(sshd:auth): authentication fail ...
show more2026-10-05T06:49:19.651011+02:00 web3 sshd-session[109931]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=121.239.173.34
2026-10-05T06:49:21.512706+02:00 web3 sshd-session[109931]: Failed password for invalid user test1 from 121.239.173.34 port 11172 ssh2
2026-10-05T06:49:25.077805+02:00 web3 sshd-session[109931]: Failed password for invalid user test1 from 121.239.173.34 port 11172 ssh2
2026-10-05T06:49:28.190429+02:00 web3 sshd-session[109931]: Failed password for invalid user test1 from 121.239.173.34 port 11172 ssh2
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