AbuseIPDB » 123.31.20.81

123.31.20.81 was found in our database!

This IP was reported 12,535 times. Confidence of Abuse is 100%: ?

100%

ISP	Vietnam Posts and Telecommunications Group
Usage Type	Fixed Line ISP
ASN	AS45899
Domain Name	vnpt.com.vn
Country	Viet Nam
City	Hanoi, Hanoi

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

Report 123.31.20.81

Whois 123.31.20.81

IP Abuse Reports for 123.31.20.81:

This IP address has been reported a total of 12,535 times from 1,542 distinct sources. 123.31.20.81 was first reported on January 16th 2023, and the most recent report was 1 day ago.

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 in UTC	Comment	Categories
Nicat Mazanlı	2025-07-18 09:19:38 (1 day ago)	SSH brute-force attack	Brute-Force SSH
rtbh.com.tr	2025-07-15 20:07:42 (3 days ago)	list.rtbh.com.tr report: tcp/0	Brute-Force
rtbh.com.tr	2025-07-14 20:07:41 (4 days ago)	list.rtbh.com.tr report: tcp/0	Brute-Force
rtbh.com.tr	2025-07-13 20:07:41 (5 days ago)	list.rtbh.com.tr report: tcp/0	Brute-Force
Study Bitcoin 🤗	2025-07-13 16:06:13 (5 days ago)	2 port probes: 2x tcp/22 (ssh) [srv127]	Port Scan Brute-Force SSH
Veslys	2025-07-13 16:04:24 (5 days ago)	Jul 13 19:02:55 Veslys sshd[3039547]: pam_unix(sshd:auth): authentication failure; logname= uid=0 eu ... show moreJul 13 19:02:55 Veslys sshd[3039547]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.31.20.81 Jul 13 19:02:57 Veslys sshd[3039547]: Failed password for invalid user kafka from 123.31.20.81 port 59718 ssh2 Jul 13 19:04:23 Veslys sshd[3101711]: Invalid user vnc from 123.31.20.81 port 60190 ... show less	Brute-Force SSH
Study Bitcoin 🤗	2025-07-13 15:52:24 (5 days ago)	7 port probes: 7x tcp/22 (ssh) [srv127]	Port Scan Brute-Force SSH
Ticketebo Pty. Ltd.	2025-07-13 15:45:50 (5 days ago)	Jul 14 01:35:58 mags sshd-session[201662]: Invalid user raj from 123.31.20.81 port 50656 Jul 1 ... show moreJul 14 01:35:58 mags sshd-session[201662]: Invalid user raj from 123.31.20.81 port 50656 Jul 14 01:39:06 mags sshd-session[201890]: Invalid user nes from 123.31.20.81 port 53546 Jul 14 01:40:28 mags sshd-session[202081]: Invalid user ubuntu from 123.31.20.81 port 54006 Jul 14 01:41:49 mags sshd-session[202099]: Invalid user hadoop from 123.31.20.81 port 54434 Jul 14 01:43:07 mags sshd-session[202188]: Invalid user backend from 123.31.20.81 port 54972 Jul 14 01:44:28 mags sshd-session[202278]: Invalid user ansible from 123.31.20.81 port 55460 Jul 14 01:45:49 mags sshd-session[202526]: Invalid user ubuntu from 123.31.20.81 port 55948 ... show less	Brute-Force
Anonymous	2025-07-13 15:42:58 (5 days ago)	Trying to login	Brute-Force SSH
Study Bitcoin 🤗	2025-07-13 15:39:09 (5 days ago)	SSH Fail2Ban [srv128]	Brute-Force
sh97	2025-07-13 15:38:02 (5 days ago)	DE02-HBRR-STOR: SSH Brute Force from 123.31.20.81 at 2025-07-13 21:07:28 IST	Brute-Force SSH
Veslys	2025-07-13 15:37:04 (5 days ago)	Jul 13 18:34:20 Veslys sshd[1870143]: Failed password for invalid user raj from 123.31.20.81 port 35 ... show moreJul 13 18:34:20 Veslys sshd[1870143]: Failed password for invalid user raj from 123.31.20.81 port 35010 ssh2 Jul 13 18:37:01 Veslys sshd[1978331]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.31.20.81 user=www-data Jul 13 18:37:04 Veslys sshd[1978331]: Failed password for www-data from 123.31.20.81 port 50588 ssh2 ... show less	Brute-Force SSH
Study Bitcoin 🤗	2025-07-13 15:36:17 (5 days ago)	8 port probes: 8x tcp/22 (ssh) [srv127]	Port Scan Brute-Force SSH
oh.mg	2025-07-13 14:06:45 (5 days ago)	2025-07-13T15:05:11.498850+01:00 frans sshd[2016125]: Failed password for root from 123.31.20.81 por ... show more2025-07-13T15:05:11.498850+01:00 frans sshd[2016125]: Failed password for root from 123.31.20.81 port 50140 ssh2 2025-07-13T15:06:42.743218+01:00 frans sshd[2059051]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.31.20.81 user=root 2025-07-13T15:06:44.652318+01:00 frans sshd[2059051]: Failed password for root from 123.31.20.81 port 50684 ssh2 ... show less	Brute-Force SSH
SELECT-IT Beratung und IT Dienstleistung GmbH	2025-07-13 12:57:57 (5 days ago)	2025-07-13T14:53:03.543126+02:00 PWS-PM-WEB01 sshd[1862796]: pam_unix(sshd:auth): authentication fai ... show more2025-07-13T14:53:03.543126+02:00 PWS-PM-WEB01 sshd[1862796]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.31.20.81 2025-07-13T14:53:05.798159+02:00 PWS-PM-WEB01 sshd[1862796]: Failed password for invalid user ciuser from 123.31.20.81 port 47842 ssh2 2025-07-13T14:54:22.675555+02:00 PWS-PM-WEB01 sshd[1862859]: Invalid user runcloud from 123.31.20.81 port 48578 ... show less	Brute-Force SSH

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