09/24/2019-23:55:19.127594 81.22.45.252 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 84

09/24/2019-06:11:02.861711 81.22.45.252 Protocol: 6 ET DROP Dshield Block Listed Source group 1

Sep 23 20:56:46 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=52926 PROTO=TCP SPT=57189 DPT=8412 WINDOW=1024 RES=0x00 SYN URGP=0 
...

09/20/2019-23:54:30.547732 81.22.45.252 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 85

09/11/2019-16:39:01.392270 81.22.45.252 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 85

Sep 11 09:58:51 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=64535 PROTO=TCP SPT=56366 DPT=555 WINDOW=1024 RES=0x00 SYN URGP=0 
...

09/09/2019-22:50:08.900130 81.22.45.252 Protocol: 6 ET SCAN NMAP -sS window 1024

Portscan or hack attempt detected by psad/fwsnort

09/02/2019-21:55:36.711016 81.22.45.252 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 85

Aug 29 22:27:38 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=19486 PROTO=TCP SPT=42798 DPT=8896 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Aug 25 16:54:52 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=55931 PROTO=TCP SPT=44112 DPT=9513 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Aug 24 13:48:18 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=31493 PROTO=TCP SPT=44112 DPT=9816 WINDOW=1024 RES=0x00 SYN URGP=0 
...

08/22/2019-23:14:29.720865 81.22.45.252 Protocol: 6 ET SCAN NMAP -sS window 1024

MultiHost/MultiPort Probe, Scan, Hack -

08/21/2019-15:29:26.343421 81.22.45.252 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 85

08/20/2019-00:26:00.148329 81.22.45.252 Protocol: 6 ET SCAN NMAP -sS window 1024

Port Scan: TCP/9242

08/15/2019-07:36:36.318969 81.22.45.252 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 85

Aug 15 02:06:01 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=27811 PROTO=TCP SPT=44112 DPT=50122 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Aug 13 21:52:01 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=8514 PROTO=TCP SPT=44112 DPT=9456 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Aug 13 09:34:50 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=63503 PROTO=TCP SPT=44112 DPT=49372 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Port scan: Attack repeated for 24 hours

08/08/2019-11:11:27.144901 81.22.45.252 Protocol: 6 ET SCAN NMAP -sS window 1024

Aug  7 22:17:05 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=5820 PROTO=TCP SPT=46654 DPT=9964 WINDOW=1024 RES=0x00 SYN URGP=0 
...

08/03/2019-23:46:50.120395 81.22.45.252 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 79

08/03/2019-07:43:52.987075 81.22.45.252 Protocol: 6 ET SCAN NMAP -sS window 1024

08/02/2019-21:52:03.775377 81.22.45.252 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 79

Port scan on 5 port(s): 44090 44091 44112 44154 44210

30.07.2019 14:00:06 Connection to port 44111 blocked by firewall

Jul 29 08:53:16 lumpi kernel: INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.252 DST=172.31.1.100 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=2845 PROTO=TCP SPT=41668 DPT=44215 WINDOW=1024 RES=0x00 SYN URGP=0 
...

suspicious action Sat, 29 Feb 2020 11:28:01 -0300

2020-02-19T00:19:18.463055+01:00 lumpi kernel: [7357790.238387] INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.133 DST=78.46.199.189 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=60679 PROTO=TCP SPT=50449 DPT=7000 WINDOW=1024 RES=0x00 SYN URGP=0 
...

2020-02-18T20:40:14.685548+01:00 lumpi kernel: [7344646.660249] INPUT:DROP:SPAMHAUS_EDROP:IN=eth0 OUT= MAC=52:54:a2:01:a5:04:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.133 DST=78.46.199.189 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=12495 PROTO=TCP SPT=50449 DPT=7777 WINDOW=1024 RES=0x00 SYN URGP=0 
...

02/17/2020-20:00:28.393431 81.22.45.106 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 83

ET CINS Active Threat Intelligence Poor Reputation IP group 69 - port: 5322 proto: TCP cat: Misc Attack

Fail2Ban Ban Triggered

MultiHost/MultiPort Probe, Scan, Hack -

Feb  8 10:02:23 mail kernel: [562000.917378] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:66:f2:68:66:ff:08:00 SRC=81.22.45.182 DST=77.73.69.240 LEN=40 TOS=0x00 PREC=0x00 TTL=250 ID=56258 PROTO=TCP SPT=42357 DPT=16115 WINDOW=1024 RES=0x00 SYN URGP=0 
...

ET CINS Active Threat Intelligence Poor Reputation IP group 77 - port: 3389 proto: TCP cat: Misc Attack

3388/tcp 3377/tcp 3385/tcp...
[2019-12-09/2020-02-07]121pkt,33pt.(tcp)

Unauthorized connection attempt from IP address 81.22.45.83 on Port 3389(RDP)

Feb  6 17:32:05 mail kernel: [416183.709828] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:66:f2:68:66:ff:08:00 SRC=81.22.45.182 DST=77.73.69.240 LEN=40 TOS=0x00 PREC=0x00 TTL=249 ID=30608 PROTO=TCP SPT=50336 DPT=10904 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Feb  6 08:44:36 mail kernel: [384534.949997] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:66:f2:68:66:ff:08:00 SRC=81.22.45.182 DST=77.73.69.240 LEN=40 TOS=0x00 PREC=0x00 TTL=250 ID=55760 PROTO=TCP SPT=50336 DPT=10994 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Unauthorised access (Feb  6) SRC=81.22.45.104 LEN=40 TTL=249 ID=41689 TCP DPT=3389 WINDOW=1024 SYN 
Unauthorised access (Feb  4) SRC=81.22.45.104 LEN=40 TTL=249 ID=63055 TCP DPT=3389 WINDOW=1024 SYN 
Unauthorised access (Feb  2) SRC=81.22.45.104 LEN=40 TTL=248 ID=40974 TCP DPT=3389 WINDOW=1024 SYN

Feb  6 01:19:32 mail kernel: [357831.266667] [UFW BLOCK] IN=eth0 OUT= MAC=00:16:3c:05:0d:89:f8:66:f2:68:66:ff:08:00 SRC=81.22.45.182 DST=77.73.69.240 LEN=40 TOS=0x00 PREC=0x00 TTL=249 ID=40878 PROTO=TCP SPT=50336 DPT=10137 WINDOW=1024 RES=0x00 SYN URGP=0 
...

Jan  7 14:31:37 sip sshd[9936]: Failed password for www-data from 112.220.24.131 port 51862 ssh2
Jan  7 14:33:36 sip sshd[10453]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.220.24.131
Jan  7 14:33:38 sip sshd[10453]: Failed password for invalid user ftp_test from 112.220.24.131 port 43678 ssh2

Unauthorized connection attempt from IP address 46.149.94.37 on Port 445(SMB)

1578402182 - 01/07/2020 14:03:02 Host: 210.212.189.82/210.212.189.82 Port: 445 TCP Blocked

Jan  7 14:03:36 grey postfix/smtpd\[31590\]: NOQUEUE: reject: RCPT from unknown\[213.74.44.214\]: 554 5.7.1 Service unavailable\; Client host \[213.74.44.214\] blocked using truncate.gbudb.net\; http://www.gbudb.com/truncate/ \[213.74.44.214\]\; from=\ to=\ proto=ESMTP helo=\
...

Invalid user plesk from 198.199.84.154 port 44105
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.199.84.154
Failed password for invalid user plesk from 198.199.84.154 port 44105 ssh2
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.199.84.154  user=root
Failed password for root from 198.199.84.154 port 56979 ssh2

Invalid user fzl from 129.205.112.253 port 46664
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.205.112.253
Failed password for invalid user fzl from 129.205.112.253 port 46664 ssh2
Invalid user systemd-journal from 129.205.112.253 port 41664
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.205.112.253

Jan  7 21:03:25 bacztwo courieresmtpd[25908]: error,relay=::ffff:78.137.117.203,msg="535 Authentication failed.",cmd: AUTH PLAIN andcycle-bitcointalk.org
Jan  7 21:03:27 bacztwo courieresmtpd[26044]: error,relay=::ffff:78.137.117.203,msg="535 Authentication failed.",cmd: AUTH PLAIN andcycle-bitcointalk.org@andcycle.idv.tw
Jan  7 21:03:29 bacztwo courieresmtpd[26171]: error,relay=::ffff:78.137.117.203,msg="535 Authentication failed.",cmd: AUTH PLAIN andcycle-bitcointalk.org
Jan  7 21:03:30 bacztwo courieresmtpd[26264]: error,relay=::ffff:78.137.117.203,msg="535 Authentication failed.",cmd: AUTH PLAIN andcycle-bitcointalk.org@andcycle.idv.tw
Jan  7 21:03:31 bacztwo courieresmtpd[26383]: error,relay=::ffff:78.137.117.203,msg="535 Authentication failed.",cmd: AUTH PLAIN andcycle-bitcointalk.org
...

Jan  7 03:27:26 sachi sshd\[15881\]: Invalid user bot from 185.38.3.138
Jan  7 03:27:26 sachi sshd\[15881\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=pan0138.panoulu.net
Jan  7 03:27:28 sachi sshd\[15881\]: Failed password for invalid user bot from 185.38.3.138 port 44398 ssh2
Jan  7 03:29:10 sachi sshd\[16028\]: Invalid user fedora from 185.38.3.138
Jan  7 03:29:10 sachi sshd\[16028\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=pan0138.panoulu.net

Unauthorized connection attempt detected from IP address 195.70.59.121 to port 2220 [J]

Unauthorized connection attempt from IP address 185.69.185.24 on Port 445(SMB)

Jan  7 03:01:04 sachi sshd\[13689\]: Invalid user wrd from 142.93.140.242
Jan  7 03:01:04 sachi sshd\[13689\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.93.140.242
Jan  7 03:01:06 sachi sshd\[13689\]: Failed password for invalid user wrd from 142.93.140.242 port 52518 ssh2
Jan  7 03:03:29 sachi sshd\[13865\]: Invalid user lna from 142.93.140.242
Jan  7 03:03:29 sachi sshd\[13865\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.93.140.242

Jan  7 14:45:01 server sshd\[3080\]: Invalid user michi from 104.248.187.179
Jan  7 14:45:01 server sshd\[3080\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.248.187.179 
Jan  7 14:45:03 server sshd\[3080\]: Failed password for invalid user michi from 104.248.187.179 port 36028 ssh2
Jan  7 16:03:34 server sshd\[22965\]: Invalid user ouf from 104.248.187.179
Jan  7 16:03:34 server sshd\[22965\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.248.187.179 
...

Unauthorized connection attempt from IP address 122.180.244.119 on Port 445(SMB)

Unauthorized connection attempt from IP address 222.173.241.10 on Port 445(SMB)

Unauthorized connection attempt detected from IP address 164.132.54.215 to port 2220 [J]