Aug  3 17:02:49 mail kernel: [346287.405568] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:66:f2:68:66:ff:08:00 SRC=62.173.145.245 DST=77.73.69.240 LEN=444 TOS=0x00 PREC=0x00 TTL=124 ID=9399 PROTO=UDP SPT=5060 DPT=4606 LEN=424 
Aug  3 17:02:49 mail kernel: [346287.406247] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:66:f2:68:66:ff:08:00 SRC=62.173.145.245 DST=77.73.69.240 LEN=443 TOS=0x00 PREC=0x00 TTL=124 ID=9402 PROTO=UDP SPT=5060 DPT=4607 LEN=423 
Aug  3 17:02:49 mail kernel: [346287.406417] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:66:f2:68:66:ff:08:00 SRC=62.173.145.245 DST=77.73.69.240 LEN=443 TOS=0x00 PREC=0x00 TTL=124 ID=9411 PROTO=UDP SPT=5060 DPT=4611 LEN=423 
Aug  3 17:02:49 mail kernel: [346287.406593] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:66:f2:68:66:ff:08:00 SRC=62.173.145.245 DST=77.73.69.240 LEN=443 TOS=0x00 PREC=0x00 TTL=124 ID=9405 PROTO=UDP SPT=5060 DPT=4609 LEN=423 
Aug  3 17:02:49 mail kernel: [346287.406849] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:6

[2020-09-05 20:26:32] NOTICE[1194][C-0000101c] chan_sip.c: Call from '' (62.173.145.222:56143) to extension '3614234273128' rejected because extension not found in context 'public'.
[2020-09-05 20:26:32] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-05T20:26:32.604-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="3614234273128",SessionID="0x7f2ddc04e988",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.145.222/56143",ACLName="no_extension_match"
[2020-09-05 20:31:32] NOTICE[1194][C-00001020] chan_sip.c: Call from '' (62.173.145.222:56535) to extension '525214234273128' rejected because extension not found in context 'public'.
[2020-09-05 20:31:32] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-05T20:31:32.027-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="525214234273128",SessionID="0x7f2ddc04e988",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/6
...

[2020-09-05 20:26:32] NOTICE[1194][C-0000101c] chan_sip.c: Call from '' (62.173.145.222:56143) to extension '3614234273128' rejected because extension not found in context 'public'.
[2020-09-05 20:26:32] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-05T20:26:32.604-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="3614234273128",SessionID="0x7f2ddc04e988",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.145.222/56143",ACLName="no_extension_match"
[2020-09-05 20:31:32] NOTICE[1194][C-00001020] chan_sip.c: Call from '' (62.173.145.222:56535) to extension '525214234273128' rejected because extension not found in context 'public'.
[2020-09-05 20:31:32] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-05T20:31:32.027-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="525214234273128",SessionID="0x7f2ddc04e988",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/6
...

[2020-09-05 09:52:17] NOTICE[1194][C-00000cef] chan_sip.c: Call from '' (62.173.145.222:56536) to extension '1114234273128' rejected because extension not found in context 'public'.
[2020-09-05 09:52:17] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-05T09:52:17.462-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1114234273128",SessionID="0x7f2ddc04e988",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.145.222/56536",ACLName="no_extension_match"
[2020-09-05 09:54:50] NOTICE[1194][C-00000cf4] chan_sip.c: Call from '' (62.173.145.222:50549) to extension '814234273128' rejected because extension not found in context 'public'.
[2020-09-05 09:54:50] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-05T09:54:50.848-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="814234273128",SessionID="0x7f2ddc27a9a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.
...

[2020-09-04 14:34:02] NOTICE[1194][C-000006ca] chan_sip.c: Call from '' (62.173.145.222:51117) to extension '01114234273128' rejected because extension not found in context 'public'.
[2020-09-04 14:34:02] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-04T14:34:02.363-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01114234273128",SessionID="0x7f2ddc0bf9a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.145.222/51117",ACLName="no_extension_match"
[2020-09-04 14:35:53] NOTICE[1194][C-000006cd] chan_sip.c: Call from '' (62.173.145.222:64662) to extension '901114234273128' rejected because extension not found in context 'public'.
[2020-09-04 14:35:53] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-04T14:35:53.814-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="901114234273128",SessionID="0x7f2ddc0e4da8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP
...

[2020-09-04 14:34:02] NOTICE[1194][C-000006ca] chan_sip.c: Call from '' (62.173.145.222:51117) to extension '01114234273128' rejected because extension not found in context 'public'.
[2020-09-04 14:34:02] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-04T14:34:02.363-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01114234273128",SessionID="0x7f2ddc0bf9a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.145.222/51117",ACLName="no_extension_match"
[2020-09-04 14:35:53] NOTICE[1194][C-000006cd] chan_sip.c: Call from '' (62.173.145.222:64662) to extension '901114234273128' rejected because extension not found in context 'public'.
[2020-09-04 14:35:53] SECURITY[1233] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-04T14:35:53.814-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="901114234273128",SessionID="0x7f2ddc0e4da8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP
...

[2020-09-01 10:09:11] NOTICE[1185][C-00009647] chan_sip.c: Call from '' (62.173.145.222:51433) to extension '14234273128' rejected because extension not found in context 'public'.
[2020-09-01 10:09:11] SECURITY[1203] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-01T10:09:11.386-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="14234273128",SessionID="0x7f10c416cce8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.145.222/51433",ACLName="no_extension_match"
[2020-09-01 10:14:51] NOTICE[1185][C-00009653] chan_sip.c: Call from '' (62.173.145.222:59756) to extension '14234273128' rejected because extension not found in context 'public'.
[2020-09-01 10:14:51] SECURITY[1203] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-01T10:14:51.803-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="14234273128",SessionID="0x7f10c446e638",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.145.22
...

TCP ports : 85 / 8089

firewall-block, port(s): 85/tcp, 88/tcp, 89/tcp, 8084/tcp, 8085/tcp

[SatMay1622:36:33.0533952020][:error][pid2030:tid47732296369920][client62.173.145.68:62878][client62.173.145.68]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"/HNAP1/"atREQUEST_URI.[file"/etc/apache2/conf.d/modsec_rules/99_asl_jitp.conf"][line"5738"][id"381237"][rev"1"][msg"Atomicorp.comWAFRules-VirtualJustInTimePatch:DLINKwormprobe"][data"/HNAP1/"][severity"CRITICAL"][hostname"81.17.25.249"][uri"/HNAP1/"][unique_id"XsBO0V1vL0DGzW9w2d2L8wAAAAc"]\,referer:http://81.17.25.249/[SatMay1622:36:33.2706592020][:error][pid2214:tid47732389578496][client62.173.145.68:62903][client62.173.145.68]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"/HNAP1/"atREQUEST_URI.[file"/etc/apache2/conf.d/modsec_rules/99_asl_jitp.conf"][line"5738"][id"381237"][rev"1"][msg"Atomicorp.comWAFRules-VirtualJustInTimePatch:DLINKwormprobe"][data"/HNAP1/"][severity"CRITICAL"][hostname"81.17.25.250"][uri"/HNAP1/"][unique_id"XsBO0bBjse1akwYICMUBQwAAANM"]\,referer:http://81.17.25.25

Attempted tcp/80 connection to my router

(sshd) Failed SSH login from 62.173.145.159 (RU/Russia/customers.campora.it): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: May  3 06:53:13 s1 sshd[14973]: Did not receive identification string from 62.173.145.159 port 56992
May  3 06:53:22 s1 sshd[14974]: Invalid user admin from 62.173.145.159 port 59614
May  3 06:53:22 s1 sshd[14975]: Invalid user admin from 62.173.145.159 port 60022
May  3 06:53:22 s1 sshd[14977]: Invalid user info from 62.173.145.159 port 60838
May  3 06:53:22 s1 sshd[14980]: Invalid user operador from 62.173.145.159 port 33014

W 31101,/var/log/nginx/access.log,-,-

Mar 25 16:42:52 debian-2gb-nbg1-2 kernel: \[7410051.203753\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=62.173.145.188 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=14882 DF PROTO=TCP SPT=12941 DPT=804 WINDOW=512 RES=0x00 SYN URGP=0

Port scan on 1 port(s): 98

2020-01-25 08:34:27 H=harddoors.ru [62.173.145.39]:36346 I=[188.227.12.106]:25 F= rejected RCPT : Your IP address [62.173.145.39] is blocked. Please, contact abuse@netsol.su
2020-01-25 08:38:30 H=harddoors.ru [62.173.145.39]:46942 I=[188.227.12.106]:25 F= rejected RCPT : Your IP address [62.173.145.39] is blocked. Please, contact abuse@netsol.su
2020-01-25 08:38:52 H=harddoors.ru [62.173.145.39]:41993 I=[188.227.12.106]:25 F= rejected RCPT : Your IP address [62.173.145.39] is blocked. Please, contact abuse@netsol.su

xmlrpc attack

Lines containing failures of 39.104.56.138
Aug  3 02:24:01 penfold sshd[4737]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=39.104.56.138  user=r.r
Aug  3 02:24:03 penfold sshd[4737]: Failed password for r.r from 39.104.56.138 port 37288 ssh2
Aug  3 02:24:05 penfold sshd[4737]: Received disconnect from 39.104.56.138 port 37288:11: Bye Bye [preauth]
Aug  3 02:24:05 penfold sshd[4737]: Disconnected from authenticating user r.r 39.104.56.138 port 37288 [preauth]
Aug  3 02:38:27 penfold sshd[5759]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=39.104.56.138  user=r.r
Aug  3 02:38:29 penfold sshd[5759]: Failed password for r.r from 39.104.56.138 port 59302 ssh2
Aug  3 02:38:32 penfold sshd[5759]: Received disconnect from 39.104.56.138 port 59302:11: Bye Bye [preauth]
Aug  3 02:38:32 penfold sshd[5759]: Disconnected from authenticating user r.r 39.104.56.138 port 59302 [preauth]
Aug  3 02:40:2........
------------------------------

$f2bV_matches

Aug  3 15:45:36 ns382633 sshd\[4676\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.99.170.83  user=root
Aug  3 15:45:38 ns382633 sshd\[4676\]: Failed password for root from 167.99.170.83 port 52728 ssh2
Aug  3 15:52:10 ns382633 sshd\[5827\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.99.170.83  user=root
Aug  3 15:52:13 ns382633 sshd\[5827\]: Failed password for root from 167.99.170.83 port 36238 ssh2
Aug  3 15:56:20 ns382633 sshd\[6758\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=167.99.170.83  user=root

Tried our host z.

xmlrpc attack

also uses 192.35.168.251 for malicious activity

Aug  3 16:23:40 pornomens sshd\[20210\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.29.162.139  user=root
Aug  3 16:23:42 pornomens sshd\[20210\]: Failed password for root from 14.29.162.139 port 34680 ssh2
Aug  3 16:27:15 pornomens sshd\[20212\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.29.162.139  user=root
...

Unauthorised access (Aug  3) SRC=139.162.109.43 LEN=40 TOS=0x10 PREC=0x40 TTL=240 ID=54321 TCP DPT=111 WINDOW=65535 SYN

Aug  3 15:15:58 OPSO sshd\[32448\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.64.215  user=root
Aug  3 15:16:01 OPSO sshd\[32448\]: Failed password for root from 64.225.64.215 port 60226 ssh2
Aug  3 15:19:59 OPSO sshd\[342\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.64.215  user=root
Aug  3 15:20:01 OPSO sshd\[342\]: Failed password for root from 64.225.64.215 port 44360 ssh2
Aug  3 15:24:06 OPSO sshd\[1152\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.225.64.215  user=root

Aug  3 12:24:23 *** sshd[8020]: User root from 200.89.154.99 not allowed because not listed in AllowUsers

Aug  3 14:20:48 ip106 sshd[2566]: Failed password for root from 106.124.131.70 port 50123 ssh2
...

Lines containing failures of 36.75.225.43
Aug  3 10:46:04 shared03 sshd[2272]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.75.225.43  user=r.r
Aug  3 10:46:06 shared03 sshd[2272]: Failed password for r.r from 36.75.225.43 port 48362 ssh2
Aug  3 10:46:06 shared03 sshd[2272]: Received disconnect from 36.75.225.43 port 48362:11: Bye Bye [preauth]
Aug  3 10:46:06 shared03 sshd[2272]: Disconnected from authenticating user r.r 36.75.225.43 port 48362 [preauth]
Aug  3 11:00:44 shared03 sshd[7663]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=36.75.225.43  user=r.r
Aug  3 11:00:47 shared03 sshd[7663]: Failed password for r.r from 36.75.225.43 port 37594 ssh2
Aug  3 11:00:47 shared03 sshd[7663]: Received disconnect from 36.75.225.43 port 37594:11: Bye Bye [preauth]
Aug  3 11:00:47 shared03 sshd[7663]: Disconnected from authenticating user r.r 36.75.225.43 port 37594 [preauth]
Aug  3 11:04:38........
------------------------------

" "

Triggered by Fail2Ban at Ares web server