Aug 28 02:45:43 mail.srvfarm.net postfix/smtpd[2024856]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 28 02:45:43 mail.srvfarm.net postfix/smtpd[2024856]: lost connection after AUTH from unknown[190.210.73.121]
Aug 28 02:50:05 mail.srvfarm.net postfix/smtpd[2024859]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 28 02:50:05 mail.srvfarm.net postfix/smtpd[2024859]: lost connection after AUTH from unknown[190.210.73.121]
Aug 28 02:55:00 mail.srvfarm.net postfix/smtpd[2025399]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Aug 17 05:06:21 mail.srvfarm.net postfix/smtpd[2584267]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 17 05:06:21 mail.srvfarm.net postfix/smtpd[2584267]: lost connection after AUTH from unknown[190.210.73.121]
Aug 17 05:10:34 mail.srvfarm.net postfix/smtpd[2597529]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 17 05:10:34 mail.srvfarm.net postfix/smtpd[2597529]: lost connection after AUTH from unknown[190.210.73.121]
Aug 17 05:15:19 mail.srvfarm.net postfix/smtpd[2597247]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Aug 15 02:15:01 mail.srvfarm.net postfix/smtpd[963151]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 15 02:15:01 mail.srvfarm.net postfix/smtpd[963151]: lost connection after AUTH from unknown[190.210.73.121]
Aug 15 02:19:15 mail.srvfarm.net postfix/smtpd[963150]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 15 02:19:15 mail.srvfarm.net postfix/smtpd[963150]: lost connection after AUTH from unknown[190.210.73.121]
Aug 15 02:24:00 mail.srvfarm.net postfix/smtpd[966771]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

SMTP blocked logins 33. Dates: 8-8-2020 / 11-8-2020

(smtpauth) Failed SMTP AUTH login from 190.210.73.121 (AR/Argentina/vps.cadjjnoticias.com.ar): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-08-10 12:00:01 login authenticator failed for (USER) [190.210.73.121]: 535 Incorrect authentication data (set_id=contato@nassajpour.com)

(smtpauth) Failed SMTP AUTH login from 190.210.73.121 (AR/Argentina/vps.cadjjnoticias.com.ar): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-08-04 12:04:02 login authenticator failed for (USER) [190.210.73.121]: 535 Incorrect authentication data (set_id=aaron@nassajpour.com)

(smtpauth) Failed SMTP AUTH login from 190.210.73.121 (AR/Argentina/vps.cadjjnoticias.com.ar): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-08-02 11:39:00 login authenticator failed for (USER) [190.210.73.121]: 535 Incorrect authentication data (set_id=enquiries@nassajpour.com)

Aug  1 07:22:59 mail.srvfarm.net postfix/smtpd[860226]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug  1 07:22:59 mail.srvfarm.net postfix/smtpd[860226]: lost connection after AUTH from unknown[190.210.73.121]
Aug  1 07:27:12 mail.srvfarm.net postfix/smtpd[888305]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug  1 07:27:12 mail.srvfarm.net postfix/smtpd[888305]: lost connection after AUTH from unknown[190.210.73.121]
Aug  1 07:31:56 mail.srvfarm.net postfix/smtpd[887734]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

(smtpauth) Failed SMTP AUTH login from 190.210.73.121 (AR/Argentina/vps.cadjjnoticias.com.ar): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-07-27 08:25:01 login authenticator failed for (USER) [190.210.73.121]: 535 Incorrect authentication data (set_id=hr@nassajpour.com)

(smtpauth) Failed SMTP AUTH login from 190.210.73.121 (AR/Argentina/vps.cadjjnoticias.com.ar): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-07-26 17:54:20 login authenticator failed for (USER) [190.210.73.121]: 535 Incorrect authentication data (set_id=aaron@nassajpour.com)

Jul 24 17:21:39 mail.srvfarm.net postfix/smtpd[2350013]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 24 17:21:39 mail.srvfarm.net postfix/smtpd[2350013]: lost connection after AUTH from unknown[190.210.73.121]
Jul 24 17:25:53 mail.srvfarm.net postfix/smtpd[2350011]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 24 17:25:53 mail.srvfarm.net postfix/smtpd[2350011]: lost connection after AUTH from unknown[190.210.73.121]
Jul 24 17:30:42 mail.srvfarm.net postfix/smtpd[2350014]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Jul 21 08:44:33 mail.srvfarm.net postfix/smtpd[76641]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 21 08:44:33 mail.srvfarm.net postfix/smtpd[76641]: lost connection after AUTH from unknown[190.210.73.121]
Jul 21 08:47:43 mail.srvfarm.net postfix/smtpd[76661]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 21 08:47:43 mail.srvfarm.net postfix/smtpd[76661]: lost connection after AUTH from unknown[190.210.73.121]
Jul 21 08:48:09 mail.srvfarm.net postfix/smtpd[74852]: warning: unknown[190.210.73.121]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

SMTP blocked logins: 26. Dates: 12-7-2020 / 14-7-2020

(smtpauth) Failed SMTP AUTH login from 190.210.73.121 (AR/Argentina/vps.cadjjnoticias.com.ar): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-07-12 13:23:29 login authenticator failed for (USER) [190.210.73.121]: 535 Incorrect authentication data (set_id=aaron@nassajpour.com)

(smtpauth) Failed SMTP AUTH login from 190.210.73.121 (AR/Argentina/vps.cadjjnoticias.com.ar): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-07-07 13:13:02 login authenticator failed for (USER) [190.210.73.121]: 535 Incorrect authentication data (set_id=help@nassajpour.com)

Unauthorized connection attempt detected from IP address 125.124.87.82 to port 8545 [T]

Jan 27 16:18:25 amida sshd[131116]: Invalid user apache from 185.100.225.115
Jan 27 16:18:25 amida sshd[131116]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.100.225.115 
Jan 27 16:18:27 amida sshd[131116]: Failed password for invalid user apache from 185.100.225.115 port 54150 ssh2
Jan 27 16:18:27 amida sshd[131116]: Received disconnect from 185.100.225.115: 11: Bye Bye [preauth]
Jan 27 16:56:14 amida sshd[141705]: Invalid user teamspeak from 185.100.225.115
Jan 27 16:56:14 amida sshd[141705]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.100.225.115 
Jan 27 16:56:16 amida sshd[141705]: Failed password for invalid user teamspeak from 185.100.225.115 port 48408 ssh2
Jan 27 16:56:16 amida sshd[141705]: Received disconnect from 185.100.225.115: 11: Bye Bye [preauth]
Jan 27 17:01:53 amida sshd[143268]: Invalid user admin from 185.100.225.115
Jan 27 17:01:53 amida sshd[143268]: pam_........
-------------------------------

2019-06-22 12:08:33 1hecwi-0001uC-7c SMTP connection from \(host-93-174-24-252.jmdi.pl\) \[93.174.24.252\]:30604 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-06-22 12:09:01 1hecx9-0001uY-85 SMTP connection from \(host-93-174-24-252.jmdi.pl\) \[93.174.24.252\]:30197 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-06-22 12:09:22 1hecxT-0001wX-TZ SMTP connection from \(host-93-174-24-252.jmdi.pl\) \[93.174.24.252\]:29000 I=\[193.107.88.166\]:25 closed by DROP in ACL
...

1433/tcp 1433/tcp
[2020-01-11/27]2pkt

1433/tcp 445/tcp
[2019-12-16/2020-01-27]2pkt

Jan 27 19:43:53 vpn01 sshd[25857]: Failed password for root from 222.186.15.10 port 16154 ssh2
...

2019-10-23 18:11:57 1iNJEp-0001Ei-9u SMTP connection from 93-142-139-255.adsl.net.t-com.hr \[93.142.139.255\]:48485 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-10-23 18:12:09 1iNJF2-0001Ev-TN SMTP connection from 93-142-139-255.adsl.net.t-com.hr \[93.142.139.255\]:48584 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-10-23 18:12:19 1iNJFB-0001F1-GY SMTP connection from 93-142-139-255.adsl.net.t-com.hr \[93.142.139.255\]:48640 I=\[193.107.88.166\]:25 closed by DROP in ACL
...

Jan 27 19:36:56 lnxded64 sshd[32497]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.120.227.23

2019-03-14 05:37:50 H=93-137-115-137.adsl.net.t-com.hr \[93.137.115.137\]:40077 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2019-03-14 05:37:57 H=93-137-115-137.adsl.net.t-com.hr \[93.137.115.137\]:40198 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2019-03-14 05:38:01 H=93-137-115-137.adsl.net.t-com.hr \[93.137.115.137\]:40283 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
...

2019-03-11 18:50:26 H=net-93-148-153-131.cust.vodafonedsl.it \[93.148.153.131\]:16601 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2019-03-11 18:50:38 H=net-93-148-153-131.cust.vodafonedsl.it \[93.148.153.131\]:16743 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2019-03-11 18:50:49 H=net-93-148-153-131.cust.vodafonedsl.it \[93.148.153.131\]:16859 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2019-03-13 17:29:40 1h46l9-0001Jt-4F SMTP connection from net-93-148-153-131.cust.vodafonedsl.it \[93.148.153.131\]:17862 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-03-13 17:29:57 1h46lR-0001Kf-Dk SMTP connection from net-93-148-153-131.cust.vodafonedsl.it \[93.148.153.131\]:16562 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-03-13 17:30:07 1h46lb-0001MO-G4 SMTP connection from net-93-148-153-131.cust.vodafo
...

Portscan or hack attempt detected by psad/fwsnort

Unauthorized connection attempt detected from IP address 186.48.76.160 to port 22 [J]

2019-07-06 23:31:00 1hjsGq-0004KU-3m SMTP connection from x5d84b3c9.dyn.telefonica.de \[93.132.179.201\]:28128 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-06 23:31:02 1hjsGr-0004KY-VC SMTP connection from x5d84b3c9.dyn.telefonica.de \[93.132.179.201\]:28164 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-06 23:31:04 1hjsGt-0004Kc-GP SMTP connection from x5d84b3c9.dyn.telefonica.de \[93.132.179.201\]:28177 I=\[193.107.88.166\]:25 closed by DROP in ACL
...

Jan 27 20:17:26 debian-2gb-nbg1-2 kernel: \[2411914.717575\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=185.176.27.178 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=246 ID=22121 PROTO=TCP SPT=53885 DPT=58177 WINDOW=1024 RES=0x00 SYN URGP=0

Jan 27 20:28:28 debian-2gb-nbg1-2 kernel: \[2412576.408605\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=185.39.10.124 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=8114 PROTO=TCP SPT=43927 DPT=15625 WINDOW=1024 RES=0x00 SYN URGP=0