2019-09-25 07:22:24 dovecot_login authenticator failed for (xn--66t80dn9s88i) [49.89.127.16]:54967 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=test@lerctr.org)
2019-09-25 07:22:24 H=(xn--66t80dn9s88i) [49.89.127.16]:54967 I=[192.147.25.65]:25 sender verify fail for : Unrouteable address
2019-09-25 07:22:24 H=(xn--66t80dn9s88i) [49.89.127.16]:54967 I=[192.147.25.65]:25 F= rejected RCPT : Sender verify failed
...

[Wed Sep 25 09:53:53.762310 2019] [:error] [pid 28619] [client 118.140.149.10:48950] [client 118.140.149.10] ModSecurity: Access denied with code 403 (phase 2). Operator GE matched 5 at TX:anomaly_score. [file "/usr/share/modsecurity-crs/rules/REQUEST-949-BLOCKING-EVALUATION.conf"] [line "91"] [id "949110"] [msg "Inbound Anomaly Score Exceeded (Total Score: 21)"] [severity "CRITICAL"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-generic"] [hostname "127.0.0.1"] [uri "/cgi-bin/ViewLog.asp"] [unique_id "XYtjYcIPKh5wbvUtUbd9UQAAAAU"]
...

Sep 25 15:18:15 mail sshd\[795\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=145.239.86.21
Sep 25 15:18:17 mail sshd\[795\]: Failed password for invalid user stacie from 145.239.86.21 port 59954 ssh2
Sep 25 15:22:48 mail sshd\[1517\]: Invalid user smtpguard from 145.239.86.21 port 44850
Sep 25 15:22:48 mail sshd\[1517\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=145.239.86.21
Sep 25 15:22:49 mail sshd\[1517\]: Failed password for invalid user smtpguard from 145.239.86.21 port 44850 ssh2

Sep 25 16:18:03 microserver sshd[49134]: Invalid user ubuntu from 212.152.35.78 port 50451
Sep 25 16:18:03 microserver sshd[49134]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.152.35.78
Sep 25 16:18:05 microserver sshd[49134]: Failed password for invalid user ubuntu from 212.152.35.78 port 50451 ssh2
Sep 25 16:21:58 microserver sshd[49750]: Invalid user homager from 212.152.35.78 port 42960
Sep 25 16:21:58 microserver sshd[49750]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.152.35.78
Sep 25 16:33:58 microserver sshd[51149]: Invalid user git123 from 212.152.35.78 port 48766
Sep 25 16:33:58 microserver sshd[51149]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.152.35.78
Sep 25 16:34:00 microserver sshd[51149]: Failed password for invalid user git123 from 212.152.35.78 port 48766 ssh2
Sep 25 16:38:05 microserver sshd[51752]: Invalid user chen from 212.152.35.78 port 41300

Sep 25 09:52:45 ny01 sshd[29676]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=213.183.101.89
Sep 25 09:52:47 ny01 sshd[29676]: Failed password for invalid user database from 213.183.101.89 port 58396 ssh2
Sep 25 09:57:16 ny01 sshd[30855]: Failed password for root from 213.183.101.89 port 42802 ssh2

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/141.237.20.62/ 
 GR - 1H : (171)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : GR 
 NAME ASN : ASN3329 
 
 IP : 141.237.20.62 
 
 CIDR : 141.237.0.0/19 
 
 PREFIX COUNT : 167 
 
 UNIQUE IP COUNT : 788480 
 
 
 WYKRYTE ATAKI Z ASN3329 :  
  1H - 1 
  3H - 1 
  6H - 6 
 12H - 30 
 24H - 56 
 
 INFO : Port Scan TELNET Detected and Blocked by ADMIN  - data recovery

445/tcp 445/tcp 445/tcp...
[2019-07-26/09-25]8pkt,1pt.(tcp)

ssh intrusion attempt

Sep 25 03:29:15 php1 sshd\[24818\]: Invalid user user from 185.55.226.123
Sep 25 03:29:15 php1 sshd\[24818\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.55.226.123
Sep 25 03:29:17 php1 sshd\[24818\]: Failed password for invalid user user from 185.55.226.123 port 47576 ssh2
Sep 25 03:33:52 php1 sshd\[25163\]: Invalid user nm-openconnect from 185.55.226.123
Sep 25 03:33:52 php1 sshd\[25163\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.55.226.123

SMB Server BruteForce Attack

445/tcp 445/tcp
[2019-09-04/25]2pkt

Sep 25 15:58:03 localhost sshd\[11245\]: Invalid user teamspeak from 154.68.39.6 port 40467
Sep 25 15:58:03 localhost sshd\[11245\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=154.68.39.6
Sep 25 15:58:06 localhost sshd\[11245\]: Failed password for invalid user teamspeak from 154.68.39.6 port 40467 ssh2

Web App Attack

Sep 25 03:41:08 hcbb sshd\[30935\]: Invalid user history from 118.193.31.19
Sep 25 03:41:08 hcbb sshd\[30935\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.193.31.19
Sep 25 03:41:09 hcbb sshd\[30935\]: Failed password for invalid user history from 118.193.31.19 port 44978 ssh2
Sep 25 03:46:41 hcbb sshd\[31349\]: Invalid user apache from 118.193.31.19
Sep 25 03:46:41 hcbb sshd\[31349\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.193.31.19

Sep 25 03:51:07 web1 sshd\[23809\]: Invalid user test from 182.61.105.104
Sep 25 03:51:07 web1 sshd\[23809\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.105.104
Sep 25 03:51:09 web1 sshd\[23809\]: Failed password for invalid user test from 182.61.105.104 port 60008 ssh2
Sep 25 03:55:51 web1 sshd\[24238\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=182.61.105.104  user=sync
Sep 25 03:55:53 web1 sshd\[24238\]: Failed password for sync from 182.61.105.104 port 44106 ssh2