[2020-07-20 13:12:13] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:59669' - Wrong password
[2020-07-20 13:12:13] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-20T13:12:13.235-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="3609",SessionID="0x7f1754188e58",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/59669",Challenge="66babd0c",ReceivedChallenge="66babd0c",ReceivedHash="296ddafa1c2724c0487fe86dea312694"
[2020-07-20 13:14:30] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:57542' - Wrong password
[2020-07-20 13:14:30] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-20T13:14:30.961-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="3514",SessionID="0x7f175455b408",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/57542",
...

[2020-07-19 09:17:05] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:59216' - Wrong password
[2020-07-19 09:17:05] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-19T09:17:05.048-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="8353",SessionID="0x7f1754188e58",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/59216",Challenge="4107885b",ReceivedChallenge="4107885b",ReceivedHash="b57c443aebc42427293647c2caaca8ed"
[2020-07-19 09:17:46] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:57440' - Wrong password
[2020-07-19 09:17:46] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-19T09:17:46.307-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="7036",SessionID="0x7f1754188e58",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/57440",
...

[2020-07-18 16:13:32] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:60327' - Wrong password
[2020-07-18 16:13:32] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-18T16:13:32.774-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="831",SessionID="0x7f17541b8598",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/60327",Challenge="4a713a4e",ReceivedChallenge="4a713a4e",ReceivedHash="41ca900dfea7f9d2bf844db2fc2f79b0"
[2020-07-18 16:14:05] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:53953' - Wrong password
[2020-07-18 16:14:05] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-18T16:14:05.404-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="3941",SessionID="0x7f175455b408",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/53953",Ch
...

\[Jul 18 09:28:27\] NOTICE\[31025\] chan_sip.c: Registration from '\' failed for '176.67.80.9:54802' - Wrong password
\[Jul 18 09:29:17\] NOTICE\[31025\] chan_sip.c: Registration from '\' failed for '176.67.80.9:65476' - Wrong password
\[Jul 18 09:30:23\] NOTICE\[31025\] chan_sip.c: Registration from '\' failed for '176.67.80.9:62173' - Wrong password
\[Jul 18 09:30:59\] NOTICE\[31025\] chan_sip.c: Registration from '\' failed for '176.67.80.9:56411' - Wrong password
\[Jul 18 09:31:56\] NOTICE\[31025\] chan_sip.c: Registration from '\' failed for '176.67.80.9:50293' - Wrong password
\[Jul 18 09:33:08\] NOTICE\[31025\] chan_sip.c: Registration from '\' failed for '176.67.80.9:64684' - Wrong password
\[Jul 18 09:33:54\] NOTICE\[31025\] chan_sip.c: Registration from '\' failed for '1
...

[2020-07-17 12:16:49] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:49995' - Wrong password
[2020-07-17 12:16:49] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-17T12:16:49.383-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="3293",SessionID="0x7f1754378da8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/49995",Challenge="01a66c1a",ReceivedChallenge="01a66c1a",ReceivedHash="eb9d2f0ca6f8f17f7b06d73a2a04aea7"
[2020-07-17 12:17:21] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:50731' - Wrong password
[2020-07-17 12:17:21] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-17T12:17:21.557-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="5072",SessionID="0x7f1754378da8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/50731",
...

[2020-07-16 10:57:05] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:50703' - Wrong password
[2020-07-16 10:57:05] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-16T10:57:05.421-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="494",SessionID="0x7f17540de808",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/50703",Challenge="72ea454e",ReceivedChallenge="72ea454e",ReceivedHash="38495f2bf635be677faf9778c20bcb5b"
[2020-07-16 10:57:36] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:60934' - Wrong password
[2020-07-16 10:57:36] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-16T10:57:36.673-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="4395",SessionID="0x7f175404ea18",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/60934",Ch
...

[2020-07-15 16:24:40] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:62593' - Wrong password
[2020-07-15 16:24:40] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-15T16:24:40.098-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="7501",SessionID="0x7f175400c8e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/62593",Challenge="76736d1b",ReceivedChallenge="76736d1b",ReceivedHash="e6dea598ca658628dad711451186ffce"
[2020-07-15 16:25:10] NOTICE[1277] chan_sip.c: Registration from '' failed for '176.67.80.9:56273' - Wrong password
[2020-07-15 16:25:10] SECURITY[1295] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-15T16:25:10.451-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="2639",SessionID="0x7f175404ea18",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.9/56273",
...

[2020-05-12 00:57:10] NOTICE[1157] chan_sip.c: Registration from '' failed for '176.67.80.4:63077' - Wrong password
[2020-05-12 00:57:10] SECURITY[1173] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-05-12T00:57:10.110-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="7898",SessionID="0x7f5f100266a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.4/63077",Challenge="13872142",ReceivedChallenge="13872142",ReceivedHash="53d9286f6c0a17cb6ed14b7c0ebcff5b"
[2020-05-12 00:57:28] NOTICE[1157] chan_sip.c: Registration from '' failed for '176.67.80.4:56474' - Wrong password
[2020-05-12 00:57:28] SECURITY[1173] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-05-12T00:57:28.836-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="999",SessionID="0x7f5f106f5588",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/176.67.80.4/56474",Ch
...

Aug 14 05:39:13 ip40 sshd[27434]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.192.149.180 
Aug 14 05:39:15 ip40 sshd[27434]: Failed password for invalid user admin from 122.192.149.180 port 48661 ssh2
...

Aug 13 19:40:58 auw2 sshd\[6739\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.42.116.22  user=root
Aug 13 19:41:00 auw2 sshd\[6739\]: Failed password for root from 192.42.116.22 port 48414 ssh2
Aug 13 19:41:03 auw2 sshd\[6739\]: Failed password for root from 192.42.116.22 port 48414 ssh2
Aug 13 19:41:07 auw2 sshd\[6739\]: Failed password for root from 192.42.116.22 port 48414 ssh2
Aug 13 19:41:10 auw2 sshd\[6739\]: Failed password for root from 192.42.116.22 port 48414 ssh2

Aug 14 02:25:00 NPSTNNYC01T sshd[13503]: Failed password for root from 91.90.36.174 port 59424 ssh2
Aug 14 02:29:55 NPSTNNYC01T sshd[14060]: Failed password for root from 91.90.36.174 port 41712 ssh2
...

2020-08-14T00:31:33.7638611495-001 sshd[61385]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.ip-51-83-41.eu  user=root
2020-08-14T00:31:35.7875691495-001 sshd[61385]: Failed password for root from 51.83.41.120 port 33644 ssh2
2020-08-14T00:35:10.6982761495-001 sshd[61537]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.ip-51-83-41.eu  user=root
2020-08-14T00:35:12.2917661495-001 sshd[61537]: Failed password for root from 51.83.41.120 port 42080 ssh2
2020-08-14T00:38:52.8139231495-001 sshd[61661]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.ip-51-83-41.eu  user=root
2020-08-14T00:38:54.7708091495-001 sshd[61661]: Failed password for root from 51.83.41.120 port 50516 ssh2
...

Aug 14 07:52:04 vpn01 sshd[11479]: Failed password for root from 5.196.69.227 port 51260 ssh2
...

Telnet Server BruteForce Attack

2020-08-14 08:30:50 dovecot_login authenticator failed for \(User\) \[212.70.149.35\]: 535 Incorrect authentication data \(set_id=webs@no-server.de\)
2020-08-14 08:30:52 dovecot_login authenticator failed for \(User\) \[212.70.149.35\]: 535 Incorrect authentication data \(set_id=s109@no-server.de\)
2020-08-14 08:31:07 dovecot_login authenticator failed for \(User\) \[212.70.149.35\]: 535 Incorrect authentication data \(set_id=s109@no-server.de\)
2020-08-14 08:31:09 dovecot_login authenticator failed for \(User\) \[212.70.149.35\]: 535 Incorrect authentication data \(set_id=ad4@no-server.de\)
2020-08-14 08:31:26 dovecot_login authenticator failed for \(User\) \[212.70.149.35\]: 535 Incorrect authentication data \(set_id=ad4@no-server.de\)
2020-08-14 08:31:28 dovecot_login authenticator failed for \(User\) \[212.70.149.35\]: 535 Incorrect authentication data \(set_id=aladdin@no-server.de\)
...

Aug 14 03:19:47 firewall sshd[23099]: Invalid user admin from 51.195.166.192
Aug 14 03:19:49 firewall sshd[23099]: Failed password for invalid user admin from 51.195.166.192 port 60238 ssh2
Aug 14 03:19:51 firewall sshd[23101]: Invalid user admin from 51.195.166.192
...

firewall-block, port(s): 3389/tcp

SSH authentication failure x 6 reported by Fail2Ban
...

Port Scan detected!
...

Port scanning [2 denied]

port scan and connect, tcp 23 (telnet)

Invalid user oracle from 192.3.73.158 port 60772

$f2bV_matches