Sep 15 20:12:25 : SSH login attempts with invalid user

SSH Brute Force

Apr 17 23:12:40 server2 sshd\[31031\]: User root from 37.49.230.141 not allowed because not listed in AllowUsers
Apr 17 23:12:40 server2 sshd\[31033\]: Invalid user admin from 37.49.230.141
Apr 17 23:12:40 server2 sshd\[31035\]: Invalid user admin from 37.49.230.141
Apr 17 23:12:40 server2 sshd\[31037\]: Invalid user user from 37.49.230.141
Apr 17 23:12:40 server2 sshd\[31039\]: Invalid user ubnt from 37.49.230.141
Apr 17 23:12:40 server2 sshd\[31041\]: Invalid user admin from 37.49.230.141

Bible

2020-10-13T06:44:21.356144news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
2020-10-13T06:44:25.395781news0 dovecot[21131]: pop3-login: Aborted login (auth failed, 1 attempts in 4 secs): user=, method=PLAIN, rip=37.49.230.238, lip=95.111.246.42, session=
2020-10-13T06:44:28.401407news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
...

2020-10-13T06:44:21.356144news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
2020-10-13T06:44:25.395781news0 dovecot[21131]: pop3-login: Aborted login (auth failed, 1 attempts in 4 secs): user=, method=PLAIN, rip=37.49.230.238, lip=95.111.246.42, session=
2020-10-13T06:44:28.401407news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
...

Dovecot Invalid User Login Attempt.

"AmooT";tag=3533393765393339313363340132313832313335333935

\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.624+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffea08d88",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="096f171f",ReceivedChallenge="096f171f",ReceivedHash="b099bdfad5869da4ae2114a56a2b4299"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.759+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffeab8148",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="233a417c",ReceivedChallenge="233a417c",ReceivedHash="0017581d14759d4b5ad3a404ed924131"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.783+0200",Severity="Error",Service="SIP",EventVersion="2",Accoun
...

\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.624+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffea08d88",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="096f171f",ReceivedChallenge="096f171f",ReceivedHash="b099bdfad5869da4ae2114a56a2b4299"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.759+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffeab8148",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="233a417c",ReceivedChallenge="233a417c",ReceivedHash="0017581d14759d4b5ad3a404ed924131"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.783+0200",Severity="Error",Service="SIP",EventVersion="2",Accoun
...

[N1.H1.VM1] Port Scanner Detected Blocked by UFW

SIP Server BruteForce Attack

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

Hellooo

Hellooo

Sep 28 15:49:19 : SSH login attempts with invalid user

Mar 17 07:26:43 eventyay sshd[9683]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.169.42
Mar 17 07:26:45 eventyay sshd[9683]: Failed password for invalid user bruno from 118.24.169.42 port 46036 ssh2
Mar 17 07:29:44 eventyay sshd[9739]: Failed password for root from 118.24.169.42 port 54144 ssh2
...

Invalid user steam from 177.185.14.54 port 58010

2020-03-17T02:09:08.483279abusebot-2.cloudsearch.cf sshd[8535]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.89.201.250  user=root
2020-03-17T02:09:10.478821abusebot-2.cloudsearch.cf sshd[8535]: Failed password for root from 101.89.201.250 port 48336 ssh2
2020-03-17T02:13:24.784831abusebot-2.cloudsearch.cf sshd[8811]: Invalid user jira from 101.89.201.250 port 49120
2020-03-17T02:13:24.791267abusebot-2.cloudsearch.cf sshd[8811]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.89.201.250
2020-03-17T02:13:24.784831abusebot-2.cloudsearch.cf sshd[8811]: Invalid user jira from 101.89.201.250 port 49120
2020-03-17T02:13:26.932116abusebot-2.cloudsearch.cf sshd[8811]: Failed password for invalid user jira from 101.89.201.250 port 49120 ssh2
2020-03-17T02:17:48.874693abusebot-2.cloudsearch.cf sshd[9031]: Invalid user gitlab-runner from 101.89.201.250 port 49874
...

Mar 17 07:18:56 vpn01 sshd[24012]: Failed password for root from 68.183.124.53 port 49260 ssh2
...

Multiple SSH login attempts.

(sshd) Failed SSH login from 123.207.7.130 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Mar 17 02:10:18 amsweb01 sshd[22979]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.207.7.130  user=root
Mar 17 02:10:20 amsweb01 sshd[22979]: Failed password for root from 123.207.7.130 port 58714 ssh2
Mar 17 02:24:36 amsweb01 sshd[24293]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.207.7.130  user=root
Mar 17 02:24:38 amsweb01 sshd[24293]: Failed password for root from 123.207.7.130 port 46526 ssh2
Mar 17 02:31:49 amsweb01 sshd[25160]: Invalid user musikbot from 123.207.7.130 port 39350

3x Failed Password

detected by Fail2Ban

Automatic report - Port Scan Attack

2020-03-17T00:27:58.419782jannga.de sshd[1242]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.221.83  user=root
2020-03-17T00:28:00.225730jannga.de sshd[1242]: Failed password for root from 106.12.221.83 port 54506 ssh2
...

SMB Server BruteForce Attack

1584401222 - 03/17/2020 00:27:02 Host: 36.72.218.255/36.72.218.255 Port: 445 TCP Blocked

WordPress login Brute force / Web App Attack on client site.

Mar 16 14:33:35 vps34202 sshd[30662]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.191.52.53  user=r.r
Mar 16 14:33:37 vps34202 sshd[30662]: Failed password for r.r from 94.191.52.53 port 39296 ssh2
Mar 16 14:33:38 vps34202 sshd[30662]: Received disconnect from 94.191.52.53: 11: Bye Bye [preauth]
Mar 16 15:24:15 vps34202 sshd[31395]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.191.52.53  user=r.r
Mar 16 15:24:17 vps34202 sshd[31395]: Failed password for r.r from 94.191.52.53 port 57790 ssh2
Mar 16 15:24:17 vps34202 sshd[31395]: Received disconnect from 94.191.52.53: 11: Bye Bye [preauth]
Mar 16 15:30:53 vps34202 sshd[31533]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.191.52.53  user=r.r
Mar 16 15:30:54 vps34202 sshd[31533]: Failed password for r.r from 94.191.52.53 port 35216 ssh2
Mar 16 15:30:55 vps34202 sshd[31533]: Received disc........
-------------------------------

Mar 17 04:20:56 lnxweb61 sshd[21249]: Failed password for root from 192.144.164.134 port 62853 ssh2
Mar 17 04:30:38 lnxweb61 sshd[29978]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.144.164.134
Mar 17 04:30:41 lnxweb61 sshd[29978]: Failed password for invalid user testuser from 192.144.164.134 port 60302 ssh2