Sep 30 03:45:51 xtremcommunity sshd\[21395\]: Invalid user fava from 138.68.92.121 port 52048
Sep 30 03:45:51 xtremcommunity sshd\[21395\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.68.92.121
Sep 30 03:45:54 xtremcommunity sshd\[21395\]: Failed password for invalid user fava from 138.68.92.121 port 52048 ssh2
Sep 30 03:54:19 xtremcommunity sshd\[21539\]: Invalid user bis from 138.68.92.121 port 36482
Sep 30 03:54:19 xtremcommunity sshd\[21539\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.68.92.121
...

\[2019-09-30 04:55:15\] NOTICE\[1948\] chan_sip.c: Registration from '"6666" \' failed for '77.247.109.72:5071' - Wrong password
\[2019-09-30 04:55:15\] SECURITY\[2006\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-30T04:55:15.645-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="6666",SessionID="0x7f1e1c1e96b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.109.72/5071",Challenge="4bc0967b",ReceivedChallenge="4bc0967b",ReceivedHash="5baafe818482a4949c1e64182672e624"
\[2019-09-30 04:55:15\] NOTICE\[1948\] chan_sip.c: Registration from '"6666" \' failed for '77.247.109.72:5071' - Wrong password
\[2019-09-30 04:55:15\] SECURITY\[2006\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-30T04:55:15.794-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="6666",SessionID="0x7f1e1c86a428",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UD

Chat Spam

Sep 30 10:59:10 dev0-dcde-rnet sshd[2433]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.234.91.237
Sep 30 10:59:12 dev0-dcde-rnet sshd[2433]: Failed password for invalid user aracelis from 62.234.91.237 port 42887 ssh2
Sep 30 11:01:45 dev0-dcde-rnet sshd[2439]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.234.91.237

85/tcp 81/tcp
[2019-09-30]2pkt

88/tcp 1588/tcp
[2019-09-30]2pkt

Sep 30 11:23:10 amit sshd\[4908\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.20  user=root
Sep 30 11:23:12 amit sshd\[4908\]: Failed password for root from 222.186.180.20 port 48606 ssh2
Sep 30 11:23:39 amit sshd\[4910\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.20  user=root
...

Sep 29 18:23:24 hiderm sshd\[15163\]: Invalid user holy from 139.199.45.83
Sep 29 18:23:24 hiderm sshd\[15163\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.45.83
Sep 29 18:23:26 hiderm sshd\[15163\]: Failed password for invalid user holy from 139.199.45.83 port 33446 ssh2
Sep 29 18:28:09 hiderm sshd\[15532\]: Invalid user boon from 139.199.45.83
Sep 29 18:28:09 hiderm sshd\[15532\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.45.83

Sep 30 10:46:02 dedicated sshd[10395]: Invalid user a from 188.165.23.42 port 50188

IP Ban Report : https://help-dysk.pl/wordpress-firewall-plugins/ip/100.37.20.196/ 
 US - 1H : (1244)  
 Protection Against DDoS WordPress plugin :  
 "odzyskiwanie danych help-dysk" 
 IP Address Ranges by Country : US 
 NAME ASN : ASN701 
 
 IP : 100.37.20.196 
 
 CIDR : 100.37.0.0/16 
 
 PREFIX COUNT : 7223 
 
 UNIQUE IP COUNT : 40015360 
 
 
 WYKRYTE ATAKI Z ASN701 :  
  1H - 1 
  3H - 2 
  6H - 5 
 12H - 13 
 24H - 30 
 
 INFO : SERVER - Looking for resource vulnerabilities Detected and Blocked by ADMIN  - data recovery

Sep 29 22:47:51 php1 sshd\[16994\]: Invalid user trendimsa1.0 from 54.37.228.221
Sep 29 22:47:51 php1 sshd\[16994\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.228.221
Sep 29 22:47:53 php1 sshd\[16994\]: Failed password for invalid user trendimsa1.0 from 54.37.228.221 port 34112 ssh2
Sep 29 22:51:39 php1 sshd\[17306\]: Invalid user hb from 54.37.228.221
Sep 29 22:51:39 php1 sshd\[17306\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.228.221

Sep 30 04:58:29 xtremcommunity sshd\[23330\]: Invalid user andreia from 62.234.83.50 port 52656
Sep 30 04:58:29 xtremcommunity sshd\[23330\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.234.83.50
Sep 30 04:58:31 xtremcommunity sshd\[23330\]: Failed password for invalid user andreia from 62.234.83.50 port 52656 ssh2
Sep 30 05:02:50 xtremcommunity sshd\[23425\]: Invalid user apache from 62.234.83.50 port 40638
Sep 30 05:02:50 xtremcommunity sshd\[23425\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.234.83.50
...

Sep 30 09:04:55 venus sshd\[22074\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.208  user=root
Sep 30 09:04:56 venus sshd\[22074\]: Failed password for root from 218.92.0.208 port 27014 ssh2
Sep 30 09:04:59 venus sshd\[22074\]: Failed password for root from 218.92.0.208 port 27014 ssh2
...

2019-09-30T00:50:35.7235431495-001 sshd\[14866\]: Failed password for invalid user furnitura from 139.59.106.82 port 48036 ssh2
2019-09-30T01:02:58.7009581495-001 sshd\[15685\]: Invalid user urbanoo from 139.59.106.82 port 48640
2019-09-30T01:02:58.7094001495-001 sshd\[15685\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.106.82
2019-09-30T01:03:00.5265691495-001 sshd\[15685\]: Failed password for invalid user urbanoo from 139.59.106.82 port 48640 ssh2
2019-09-30T01:09:21.1978781495-001 sshd\[16124\]: Invalid user jeffchen from 139.59.106.82 port 33158
2019-09-30T01:09:21.2045771495-001 sshd\[16124\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.106.82
...

port scan/probe/communication attempt