(sshd) Failed SSH login from 177.34.44.240 (BR/Brazil/b1222cf0.virtua.com.br): 5 in the last 3600 secs

Unauthorized connection attempt detected from IP address 177.126.139.249 to port 23

Jul  9 16:22:00 server sshd[7640]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=83.239.138.38
Jul  9 16:22:02 server sshd[7640]: Failed password for invalid user xiongjiayu from 83.239.138.38 port 44986 ssh2
Jul  9 16:25:22 server sshd[7906]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=83.239.138.38
...

Jul  9 13:44:52 havingfunrightnow sshd[14528]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.76.84 
Jul  9 13:44:54 havingfunrightnow sshd[14528]: Failed password for invalid user tjq from 49.235.76.84 port 35806 ssh2
Jul  9 14:08:06 havingfunrightnow sshd[15219]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.235.76.84 
...

Jul  9 15:27:04 debian-2gb-nbg1-2 kernel: \[16559817.866708\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=138.197.216.120 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=240 ID=44696 PROTO=TCP SPT=47588 DPT=8443 WINDOW=1024 RES=0x00 SYN URGP=0

Jul  9 15:26:21 abendstille sshd\[15966\]: Invalid user ziye from 129.211.174.145
Jul  9 15:26:21 abendstille sshd\[15966\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.211.174.145
Jul  9 15:26:23 abendstille sshd\[15966\]: Failed password for invalid user ziye from 129.211.174.145 port 46334 ssh2
Jul  9 15:30:34 abendstille sshd\[20130\]: Invalid user vnc from 129.211.174.145
Jul  9 15:30:34 abendstille sshd\[20130\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.211.174.145
...

Jul  9 16:07:22 [host] sshd[5616]: Invalid user cl
Jul  9 16:07:22 [host] sshd[5616]: pam_unix(sshd:a
Jul  9 16:07:24 [host] sshd[5616]: Failed password

[2020-07-09 09:55:37] NOTICE[1150] chan_sip.c: Registration from '' failed for '185.210.218.206:57423' - Wrong password
[2020-07-09 09:55:37] SECURITY[1167] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-09T09:55:37.585-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="748",SessionID="0x7fcb4c0dfe08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.210.218.206/57423",Challenge="27f1e96b",ReceivedChallenge="27f1e96b",ReceivedHash="384354e6cdac087fc93c5237b10c8d96"
[2020-07-09 09:56:06] NOTICE[1150] chan_sip.c: Registration from '' failed for '185.210.218.206:55140' - Wrong password
[2020-07-09 09:56:06] SECURITY[1167] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-09T09:56:06.028-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="5975",SessionID="0x7fcb4c07a778",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.210.2
...

Jul  9 16:22:28 srv01 postfix/smtpd\[31574\]: warning: unknown\[185.143.73.148\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  9 16:23:06 srv01 postfix/smtpd\[31574\]: warning: unknown\[185.143.73.148\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  9 16:23:45 srv01 postfix/smtpd\[8717\]: warning: unknown\[185.143.73.148\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  9 16:24:23 srv01 postfix/smtpd\[8718\]: warning: unknown\[185.143.73.148\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul  9 16:25:01 srv01 postfix/smtpd\[8718\]: warning: unknown\[185.143.73.148\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Jul  9 16:11:17 * sshd[21236]: Failed password for root from 218.92.0.138 port 59325 ssh2
Jul  9 16:11:31 * sshd[21236]: error: maximum authentication attempts exceeded for root from 218.92.0.138 port 59325 ssh2 [preauth]

2020-07-09T08:06:26.247102na-vps210223 sshd[12978]: Invalid user frw from 195.158.28.62 port 48044
2020-07-09T08:06:26.253179na-vps210223 sshd[12978]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.158.28.62
2020-07-09T08:06:26.247102na-vps210223 sshd[12978]: Invalid user frw from 195.158.28.62 port 48044
2020-07-09T08:06:28.381969na-vps210223 sshd[12978]: Failed password for invalid user frw from 195.158.28.62 port 48044 ssh2
2020-07-09T08:08:18.675166na-vps210223 sshd[18353]: Invalid user qlu from 195.158.28.62 port 33587
...

Jul  7 21:45:02 srv05 sshd[12715]: Failed password for invalid user stasha from 35.232.178.56 port 59956 ssh2
Jul  7 21:45:02 srv05 sshd[12715]: Received disconnect from 35.232.178.56: 11: Bye Bye [preauth]
Jul  7 22:00:10 srv05 sshd[13525]: Failed password for invalid user www from 35.232.178.56 port 56682 ssh2
Jul  7 22:00:10 srv05 sshd[13525]: Received disconnect from 35.232.178.56: 11: Bye Bye [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=35.232.178.56

Jul  9 14:08:23 serwer sshd\[2460\]: Invalid user alfredo from 168.194.207.58 port 35097
Jul  9 14:08:23 serwer sshd\[2460\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=168.194.207.58
Jul  9 14:08:25 serwer sshd\[2460\]: Failed password for invalid user alfredo from 168.194.207.58 port 35097 ssh2
...

2020-07-09T13:59:12.400260amanda2.illicoweb.com sshd\[37212\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.196.249.170  user=nagios
2020-07-09T13:59:14.614312amanda2.illicoweb.com sshd\[37212\]: Failed password for nagios from 200.196.249.170 port 44108 ssh2
2020-07-09T14:07:56.278836amanda2.illicoweb.com sshd\[37756\]: Invalid user kirk from 200.196.249.170 port 59158
2020-07-09T14:07:56.493803amanda2.illicoweb.com sshd\[37756\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.196.249.170
2020-07-09T14:07:58.311379amanda2.illicoweb.com sshd\[37756\]: Failed password for invalid user kirk from 200.196.249.170 port 59158 ssh2
...

Jul  9 14:08:18 haigwepa sshd[21093]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=164.132.57.16 
Jul  9 14:08:20 haigwepa sshd[21093]: Failed password for invalid user ilie from 164.132.57.16 port 60238 ssh2
...