Feb 22 22:23:20 vpn sshd[20908]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.31.33.122
Feb 22 22:23:21 vpn sshd[20908]: Failed password for invalid user postgres from 64.31.33.122 port 45196 ssh2
Feb 22 22:27:28 vpn sshd[20924]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.31.33.122

Jan 19 08:02:22 vpn sshd[2891]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.31.33.234
Jan 19 08:02:25 vpn sshd[2891]: Failed password for invalid user informix from 64.31.33.234 port 58436 ssh2
Jan 19 08:05:16 vpn sshd[2910]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=64.31.33.234

\[2019-08-03 05:07:01\] NOTICE\[2288\] chan_sip.c: Registration from '"878787" \' failed for '64.31.33.70:5295' - Wrong password
\[2019-08-03 05:07:01\] SECURITY\[2326\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-03T05:07:01.371-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="878787",SessionID="0x7ff4d0783388",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5295",Challenge="51e6bbed",ReceivedChallenge="51e6bbed",ReceivedHash="82e9d8d660bfb5020d49d0242850aaca"
\[2019-08-03 05:07:01\] NOTICE\[2288\] chan_sip.c: Registration from '"878787" \' failed for '64.31.33.70:5295' - Wrong password
\[2019-08-03 05:07:01\] SECURITY\[2326\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-03T05:07:01.453-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="878787",SessionID="0x7ff4d02d8f48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="I

\[2019-08-01 05:23:32\] NOTICE\[2288\] chan_sip.c: Registration from '"5027" \' failed for '64.31.33.70:5281' - Wrong password
\[2019-08-01 05:23:32\] SECURITY\[2326\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-01T05:23:32.801-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="5027",SessionID="0x7ff4d00cdaf8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5281",Challenge="0cf526cc",ReceivedChallenge="0cf526cc",ReceivedHash="435b940988270990ddc71776585cd96b"
\[2019-08-01 05:23:32\] NOTICE\[2288\] chan_sip.c: Registration from '"5027" \' failed for '64.31.33.70:5281' - Wrong password
\[2019-08-01 05:23:32\] SECURITY\[2326\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-08-01T05:23:32.906-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="5027",SessionID="0x7ff4d00ec4d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.3

CloudCIX Reconnaissance Scan Detected, PTR: 66-33-31-64.static.reverse.lstn.net.

\[2019-07-21 09:19:35\] NOTICE\[20804\] chan_sip.c: Registration from '"9090" \' failed for '64.31.33.70:5898' - Wrong password
\[2019-07-21 09:19:35\] SECURITY\[20812\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-21T09:19:35.706-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9090",SessionID="0x7f06f823f758",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5898",Challenge="630f9b5c",ReceivedChallenge="630f9b5c",ReceivedHash="ebc666ba3c9931e8a9722af5d67592ac"
\[2019-07-21 09:19:35\] NOTICE\[20804\] chan_sip.c: Registration from '"9090" \' failed for '64.31.33.70:5898' - Wrong password
\[2019-07-21 09:19:35\] SECURITY\[20812\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-21T09:19:35.778-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9090",SessionID="0x7f06f8009f28",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/

\[2019-07-20 10:44:51\] NOTICE\[20804\] chan_sip.c: Registration from '"9001" \' failed for '64.31.33.70:5549' - Wrong password
\[2019-07-20 10:44:51\] SECURITY\[20812\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-20T10:44:51.970-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9001",SessionID="0x7f06f8677b38",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5549",Challenge="32e31359",ReceivedChallenge="32e31359",ReceivedHash="a22f4b71727c0e16b431f80a17b96604"
\[2019-07-20 10:44:52\] NOTICE\[20804\] chan_sip.c: Registration from '"9001" \' failed for '64.31.33.70:5549' - Wrong password
\[2019-07-20 10:44:52\] SECURITY\[20812\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-20T10:44:52.047-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9001",SessionID="0x7f06f804c2c8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/

\[2019-07-18 07:48:23\] NOTICE\[20804\] chan_sip.c: Registration from '"9090" \' failed for '64.31.33.70:5943' - Wrong password
\[2019-07-18 07:48:23\] SECURITY\[20812\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-18T07:48:23.133-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9090",SessionID="0x7f06f823f758",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5943",Challenge="23d4fc03",ReceivedChallenge="23d4fc03",ReceivedHash="ea04502c51b50805c2128842cb65b5b7"
\[2019-07-18 07:48:23\] NOTICE\[20804\] chan_sip.c: Registration from '"9090" \' failed for '64.31.33.70:5943' - Wrong password
\[2019-07-18 07:48:23\] SECURITY\[20812\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-18T07:48:23.211-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="9090",SessionID="0x7f06f8009f28",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/

\[2019-07-17 17:16:40\] NOTICE\[20804\] chan_sip.c: Registration from '"60" \' failed for '64.31.33.70:5938' - Wrong password
\[2019-07-17 17:16:40\] SECURITY\[20812\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-17T17:16:40.136-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="60",SessionID="0x7f06f85ff978",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5938",Challenge="73d6bafc",ReceivedChallenge="73d6bafc",ReceivedHash="b81f470213bfc0a0faca2405edf219d9"
\[2019-07-17 17:16:40\] NOTICE\[20804\] chan_sip.c: Registration from '"60" \' failed for '64.31.33.70:5938' - Wrong password
\[2019-07-17 17:16:40\] SECURITY\[20812\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-17T17:16:40.214-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="60",SessionID="0x7f06f804c2c8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/

res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '"8001" ' failed for '64.31.33.70:5916' (callid: 677708513) - Failed to authenticate

17.07.2019 06:44:35 Connection to port 1020 blocked by firewall

\[2019-07-14 12:45:04\] NOTICE\[22786\] chan_sip.c: Registration from '"2082" \' failed for '64.31.33.70:6079' - Wrong password
\[2019-07-14 12:45:04\] SECURITY\[22794\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-14T12:45:04.785-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2082",SessionID="0x7f7544394d68",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/6079",Challenge="22fee9a4",ReceivedChallenge="22fee9a4",ReceivedHash="909cdd05e07eb830cd90c8a17f9ccb59"
\[2019-07-14 12:45:04\] NOTICE\[22786\] chan_sip.c: Registration from '"2082" \' failed for '64.31.33.70:6079' - Wrong password
\[2019-07-14 12:45:04\] SECURITY\[22794\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-14T12:45:04.862-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2082",SessionID="0x7f75443af748",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/

[2019-07-13 21:33:54] NOTICE[4215] chan_sip.c: Registration from '"2056" ' failed for '64.31.33.70:5828' - Wrong password
[2019-07-13 21:33:54] SECURITY[4222] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-13T21:33:54.084-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2056",SessionID="0x7fdee4032e60",LocalAddress="IPV4/UDP/142.93.153.17/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5828",Challenge="6ccfb677",ReceivedChallenge="6ccfb677",ReceivedHash="1ca663d8f3bc8e41b7565d403126862f"
[2019-07-13 21:33:54] NOTICE[4215] chan_sip.c: Registration from '"2056" ' failed for '64.31.33.70:5828' - Wrong password
[2019-07-13 21:33:54] SECURITY[4222] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-13T21:33:54.183-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2056",SessionID="0x7fdee40a16c0",LocalAddress="IPV4/UDP/142.93.153.17/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5828",Challenge="2ecd7bae",Rec

\[2019-07-12 19:08:08\] NOTICE\[22786\] chan_sip.c: Registration from '"2010" \' failed for '64.31.33.70:5753' - Wrong password
\[2019-07-12 19:08:08\] SECURITY\[22794\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-12T19:08:08.193-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2010",SessionID="0x7f7544230ac8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/64.31.33.70/5753",Challenge="7b19e12b",ReceivedChallenge="7b19e12b",ReceivedHash="abb0baaa9f8c0e9835ca3ccf232dff1e"
\[2019-07-12 19:08:08\] NOTICE\[22786\] chan_sip.c: Registration from '"2010" \' failed for '64.31.33.70:5753' - Wrong password
\[2019-07-12 19:08:08\] SECURITY\[22794\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-07-12T19:08:08.269-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2010",SessionID="0x7f75441b6d18",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/

$f2bV_matches

2019-12-28T07:05:30.496445abusebot-5.cloudsearch.cf sshd[29368]: Invalid user ssh from 159.65.148.115 port 46146
2019-12-28T07:05:30.506373abusebot-5.cloudsearch.cf sshd[29368]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.148.115
2019-12-28T07:05:30.496445abusebot-5.cloudsearch.cf sshd[29368]: Invalid user ssh from 159.65.148.115 port 46146
2019-12-28T07:05:32.779633abusebot-5.cloudsearch.cf sshd[29368]: Failed password for invalid user ssh from 159.65.148.115 port 46146 ssh2
2019-12-28T07:10:12.471068abusebot-5.cloudsearch.cf sshd[29372]: Invalid user ranjeet from 159.65.148.115 port 49692
2019-12-28T07:10:12.479140abusebot-5.cloudsearch.cf sshd[29372]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.65.148.115
2019-12-28T07:10:12.471068abusebot-5.cloudsearch.cf sshd[29372]: Invalid user ranjeet from 159.65.148.115 port 49692
2019-12-28T07:10:14.130487abusebot-5.cloudsearch.cf sshd[29372]: F
...

Dec 28 09:44:22 dev0-dcde-rnet sshd[10894]: Failed password for root from 222.186.175.220 port 22544 ssh2
Dec 28 09:44:25 dev0-dcde-rnet sshd[10894]: Failed password for root from 222.186.175.220 port 22544 ssh2
Dec 28 09:44:28 dev0-dcde-rnet sshd[10894]: Failed password for root from 222.186.175.220 port 22544 ssh2
Dec 28 09:44:31 dev0-dcde-rnet sshd[10894]: Failed password for root from 222.186.175.220 port 22544 ssh2

2019-12-28T08:48:08.170236hub.schaetter.us sshd\[9243\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.17  user=root
2019-12-28T08:48:10.498037hub.schaetter.us sshd\[9243\]: Failed password for root from 222.186.180.17 port 65292 ssh2
2019-12-28T08:48:13.480780hub.schaetter.us sshd\[9243\]: Failed password for root from 222.186.180.17 port 65292 ssh2
2019-12-28T08:48:16.874971hub.schaetter.us sshd\[9243\]: Failed password for root from 222.186.180.17 port 65292 ssh2
2019-12-28T08:48:20.148826hub.schaetter.us sshd\[9243\]: Failed password for root from 222.186.180.17 port 65292 ssh2
...

Dec 28 07:19:50 vps691689 sshd[30087]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.173.156
Dec 28 07:19:53 vps691689 sshd[30087]: Failed password for invalid user matnat from 106.13.173.156 port 59082 ssh2
...

Honeypot attack, port: 23, PTR: PTR record not found

Invalid user kl from 182.253.105.93 port 44378

12/28/2019-09:51:06.058817 34.215.122.24 Protocol: 6 SURICATA TLS invalid record/traffic

Postfix SMTP rejection
...

12/28/2019-07:27:44.635002 117.216.139.61 Protocol: 6 ET SCAN Suspicious inbound to MSSQL port 1433

Dec 28 12:31:40 gw1 sshd[18748]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=183.48.33.75
Dec 28 12:31:42 gw1 sshd[18748]: Failed password for invalid user dbus from 183.48.33.75 port 60110 ssh2
...

Automatic report - SSH Brute-Force Attack

Scanning random ports - tries to find possible vulnerable services

Invalid user configure from 128.199.177.224 port 46396

SASL broute force

Dec 28 09:19:01 localhost sshd\[5799\]: Invalid user testftp from 172.81.205.98 port 34072
Dec 28 09:19:01 localhost sshd\[5799\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=172.81.205.98
Dec 28 09:19:03 localhost sshd\[5799\]: Failed password for invalid user testftp from 172.81.205.98 port 34072 ssh2