AbuseIPDB » 131.221.0.28

131.221.0.28 was found in our database!

This IP was reported 76 times. Confidence of Abuse is 100%: ?

100%

ISP	UNIVERSIDAD NACIONAL DEL CENTRO DE LA PROVINCIA DE BUENOS AIRES
Usage Type	University/College/School
ASN	AS61496
Hostname(s)	access.unicen.edu.ar
Domain Name	unicen.edu.ar
Country	Argentina
City	Tandil, Buenos Aires

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated biweekly.

Report 131.221.0.28

Whois 131.221.0.28

IP Abuse Reports for 131.221.0.28:

This IP address has been reported a total of 76 times from 36 distinct sources. 131.221.0.28 was first reported on February 17th 2023, and the most recent report was 1 week ago.

Old Reports: The most recent abuse report for this IP address is from 1 week ago. It is possible that this IP is no longer involved in abusive activities.

Reporter	IoA Timestamp in UTC	Comment	Categories
rtbh.com.tr	2025-06-10 20:07:05 (1 week ago)	list.rtbh.com.tr report: tcp/0	Brute-Force
rtbh.com.tr	2025-06-10 00:07:02 (1 week ago)	list.rtbh.com.tr report: tcp/0	Brute-Force
rtbh.com.tr	2025-06-09 20:07:03 (1 week ago)	list.rtbh.com.tr report: tcp/0	Brute-Force
KIsmay	2025-06-09 10:04:18 (1 week ago)	Jun 9 05:59:08 www4 sshd[2339884]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid ... show moreJun 9 05:59:08 www4 sshd[2339884]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=131.221.0.28 Jun 9 05:59:10 www4 sshd[2339884]: Failed password for invalid user john from 131.221.0.28 port 46504 ssh2 Jun 9 06:04:15 www4 sshd[2340187]: Invalid user es_user from 131.221.0.28 port 43178 Jun 9 06:04:15 www4 sshd[2340187]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=131.221.0.28 Jun 9 06:04:18 www4 sshd[2340187]: Failed password for invalid user es_user from 131.221.0.28 port 43178 ssh2 ... show less	Brute-Force SSH
f-d-m	2025-06-09 10:02:04 (1 week ago)	ssh-bruteforce/k3	Brute-Force SSH
R-bear	2025-06-09 07:01:28 (1 week ago)	Jun 9 06:33:42 synth sshd[2775532]: Invalid user printer from 131.221.0.28 port 48286 Jun 9 ... show moreJun 9 06:33:42 synth sshd[2775532]: Invalid user printer from 131.221.0.28 port 48286 Jun 9 06:33:42 synth sshd[2775532]: Disconnected from invalid user printer 131.221.0.28 port 48286 [preauth] Jun 9 06:39:12 synth sshd[2776477]: Disconnected from authenticating user root 131.221.0.28 port 41710 [preauth] Jun 9 06:44:52 synth sshd[2777466]: Invalid user api from 131.221.0.28 port 42702 Jun 9 06:44:53 synth sshd[2777466]: Disconnected from invalid user api 131.221.0.28 port 42702 [preauth] Jun 9 06:50:27 synth sshd[2778404]: Invalid user gateway from 131.221.0.28 port 49498 Jun 9 06:50:27 synth sshd[2778404]: Disconnected from invalid user gateway 131.221.0.28 port 49498 [preauth] Jun 9 06:56:04 synth sshd[2779357]: Invalid user ubadmin from 131.221.0.28 port 46024 Jun 9 06:56:05 synth sshd[2779357]: Disconnected from invalid user ubadmin 131.221.0.28 port 46024 [preauth] Jun 9 07:01:28 synth sshd[2780265]: Disconnected from authenticating user root 131.221.0.28 port 35638 [p ... show less	Brute-Force SSH
Anonymous	2025-06-09 06:25:12 (1 week ago)	2025-06-09 06:52:08,522 fail2ban.actions [2629]: NOTICE [sshd] Ban 131.221.0.28 2025-0 ... show more2025-06-09 06:52:08,522 fail2ban.actions [2629]: NOTICE [sshd] Ban 131.221.0.28 2025-06-09 07:14:42,750 fail2ban.actions [2629]: NOTICE [sshd] Ban 131.221.0.28 2025-06-09 07:37:24,887 fail2ban.actions [2629]: NOTICE [sshd] Ban 131.221.0.28 2025-06-09 08:04:08,068 fail2ban.actions [2629]: NOTICE [sshd] Ban 131.221.0.28 2025-06-09 08:25:10,911 fail2ban.actions [2629]: NOTICE [sshd] Ban 131.221.0.28 ... show less	Brute-Force SSH
R-bear	2025-06-09 05:01:19 (1 week ago)	Jun 9 04:31:08 synth sshd[2754437]: Disconnected from authenticating user root 131.221.0.28 port 37 ... show moreJun 9 04:31:08 synth sshd[2754437]: Disconnected from authenticating user root 131.221.0.28 port 37860 [preauth] Jun 9 04:38:38 synth sshd[2755725]: Disconnected from authenticating user root 131.221.0.28 port 45508 [preauth] Jun 9 04:44:28 synth sshd[2756764]: Invalid user admin1 from 131.221.0.28 port 44318 Jun 9 04:44:28 synth sshd[2756764]: Disconnected from invalid user admin1 131.221.0.28 port 44318 [preauth] Jun 9 04:50:10 synth sshd[2757733]: Invalid user lihui from 131.221.0.28 port 45148 Jun 9 04:50:10 synth sshd[2757733]: Disconnected from invalid user lihui 131.221.0.28 port 45148 [preauth] Jun 9 04:55:50 synth sshd[2758680]: Invalid user hruser from 131.221.0.28 port 43650 Jun 9 04:55:50 synth sshd[2758680]: Disconnected from invalid user hruser 131.221.0.28 port 43650 [preauth] Jun 9 05:01:18 synth sshd[2759584]: Invalid user mcserver from 131.221.0.28 port 48278 Jun 9 05:01:18 synth sshd[2759584]: Disconnected from invalid user mcserver 131.221.0.28 port 48278 ... show less	Brute-Force SSH
bret.dk	2025-06-09 01:43:52 (1 week ago)	Jun 9 01:36:43 sg-mirror sshd[3432777]: Failed password for root from 131.221.0.28 port 46712 ssh2< ... show moreJun 9 01:36:43 sg-mirror sshd[3432777]: Failed password for root from 131.221.0.28 port 46712 ssh2 Jun 9 01:43:51 sg-mirror sshd[3433650]: Invalid user uap from 131.221.0.28 port 33010 ... show less	Brute-Force SSH
RuslanUC	2025-06-09 01:41:24 (1 week ago)	Jun 8 16:41:23 alpha-ef21b5050c sshd[3076655]: Invalid user uap from 131.221.0.28 port 33226 ... show moreJun 8 16:41:23 alpha-ef21b5050c sshd[3076655]: Invalid user uap from 131.221.0.28 port 33226 ... show less	Port Scan Brute-Force SSH
ghostwarriors	2025-06-09 01:20:30 (1 week ago)	Unauthorized connection attempt detected, SSH Brute-Force	Port Scan Brute-Force SSH
zmb.pl	2025-06-09 01:16:50 (1 week ago)	Jun 9 03:11:20 srv3 sshd\[30115\]: Invalid user rsync from 131.221.0.28 port 33884 Jun 9 03: ... show moreJun 9 03:11:20 srv3 sshd\[30115\]: Invalid user rsync from 131.221.0.28 port 33884 Jun 9 03:11:20 srv3 sshd\[30115\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=131.221.0.28 Jun 9 03:11:22 srv3 sshd\[30115\]: Failed password for invalid user rsync from 131.221.0.28 port 33884 ssh2 Jun 9 03:16:48 srv3 sshd\[30542\]: Invalid user UBUNTU from 131.221.0.28 port 45662 Jun 9 03:16:48 srv3 sshd\[30542\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=131.221.0.28 ... show less	Brute-Force SSH
paneologist	2025-06-09 01:16:42 (1 week ago)	2025-06-09T00:55:39.362063alpha.swabian.net sshd\[9577\]: Invalid user erp from 131.221.0.28 port 38 ... show more2025-06-09T00:55:39.362063alpha.swabian.net sshd\[9577\]: Invalid user erp from 131.221.0.28 port 38426 2025-06-09T01:01:12.771338alpha.swabian.net sshd\[12763\]: Invalid user giorgio from 131.221.0.28 port 46270 2025-06-09T01:06:38.361130alpha.swabian.net sshd\[15506\]: Invalid user alexandre from 131.221.0.28 port 33904 2025-06-09T01:11:56.713999alpha.swabian.net sshd\[17926\]: Invalid user odin from 131.221.0.28 port 55424 2025-06-09T01:17:22.540714alpha.swabian.net sshd\[20663\]: Invalid user grid from 131.221.0.28 port 38744 2025-06-09T01:22:47.434608alpha.swabian.net sshd\[23015\]: Invalid user jonas from 131.221.0.28 port 43860 2025-06-09T01:28:12.159764alpha.swabian.net sshd\[25339\]: Invalid user ubuntu from 131.221.0.28 port 57144 2025-06-09T01:33:31.379123alpha.swabian.net sshd\[28055\]: Invalid user ftpuser from 131.221.0.28 port 50882 2025-06-09T01:44:26.564346alpha.swabian.net sshd\[423\]: Invalid user lol from 131.221.0.28 port 55824 2025-06-09T01:49:50.021501alpha.swabian.net sshd\[3149\]: Inv show less	Brute-Force SSH
zmb.pl	2025-06-09 00:38:49 (1 week ago)	Jun 9 02:33:24 srv3 sshd\[26580\]: Invalid user dev from 131.221.0.28 port 42310 Jun 9 02:33 ... show moreJun 9 02:33:24 srv3 sshd\[26580\]: Invalid user dev from 131.221.0.28 port 42310 Jun 9 02:33:24 srv3 sshd\[26580\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=131.221.0.28 Jun 9 02:33:26 srv3 sshd\[26580\]: Failed password for invalid user dev from 131.221.0.28 port 42310 ssh2 Jun 9 02:38:47 srv3 sshd\[26781\]: Invalid user gokul from 131.221.0.28 port 60938 Jun 9 02:38:47 srv3 sshd\[26781\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=131.221.0.28 ... show less	Brute-Force SSH
zmb.pl	2025-06-09 00:22:38 (1 week ago)	Jun 9 02:17:04 srv3 sshd\[25817\]: Invalid user exx from 131.221.0.28 port 38176 Jun 9 02:17 ... show moreJun 9 02:17:04 srv3 sshd\[25817\]: Invalid user exx from 131.221.0.28 port 38176 Jun 9 02:17:04 srv3 sshd\[25817\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=131.221.0.28 Jun 9 02:17:06 srv3 sshd\[25817\]: Failed password for invalid user exx from 131.221.0.28 port 38176 ssh2 Jun 9 02:22:32 srv3 sshd\[26100\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=131.221.0.28 user=root Jun 9 02:22:34 srv3 sshd\[26100\]: Failed password for root from 131.221.0.28 port 58908 ssh2 ... show less	Brute-Force SSH

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