" "

\[2019-09-27 09:11:49\] SECURITY\[4657\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-27T09:11:49.584+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="7",SessionID="0x7fddeeb988a8",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/74.63.255.138/5789",Challenge="14837210",ReceivedChallenge="14837210",ReceivedHash="98ac2a69928a981660c5378d3f7f583a"
\[2019-09-27 09:11:49\] SECURITY\[4657\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-27T09:11:49.860+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="7",SessionID="0x7fddeebec018",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/74.63.255.138/5789",Challenge="24d4a848",ReceivedChallenge="24d4a848",ReceivedHash="9a0dd124c84cc9a1841a0a253c388de3"
\[2019-09-27 09:11:49\] SECURITY\[4657\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-27T09:11:49.889+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID=
...

\[2019-09-24 10:48:55\] NOTICE\[1970\] chan_sip.c: Registration from '"402" \' failed for '74.63.255.138:5669' - Wrong password
\[2019-09-24 10:48:55\] SECURITY\[1978\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-24T10:48:55.035-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="402",SessionID="0x7f9b34573e78",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.63.255.138/5669",Challenge="3962c902",ReceivedChallenge="3962c902",ReceivedHash="c84e4bd7c3dc27e8368b203ecf9791a4"
\[2019-09-24 10:48:58\] NOTICE\[1970\] chan_sip.c: Registration from '"405" \' failed for '74.63.255.138:5709' - Wrong password
\[2019-09-24 10:48:58\] SECURITY\[1978\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-24T10:48:58.983-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="405",SessionID="0x7f9b3413ca78",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.6

\[2019-09-24 04:00:43\] NOTICE\[1970\] chan_sip.c: Registration from '"208" \' failed for '74.63.255.138:5404' - Wrong password
\[2019-09-24 04:00:43\] SECURITY\[1978\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-24T04:00:43.154-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="208",SessionID="0x7f9b34358e08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.63.255.138/5404",Challenge="78bd238c",ReceivedChallenge="78bd238c",ReceivedHash="7684cef43bbd3ccd84273f15240be915"
\[2019-09-24 04:00:43\] NOTICE\[1970\] chan_sip.c: Registration from '"208" \' failed for '74.63.255.138:5404' - Wrong password
\[2019-09-24 04:00:43\] SECURITY\[1978\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-24T04:00:43.267-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="208",SessionID="0x7f9b341670b8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.6

\[2019-09-23 14:57:01\] NOTICE\[2270\] chan_sip.c: Registration from '"104" \' failed for '74.63.255.138:5896' - Wrong password
\[2019-09-23 14:57:01\] SECURITY\[2283\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-23T14:57:01.083-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="104",SessionID="0x7fcd8c4366c8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.63.255.138/5896",Challenge="21b6cd77",ReceivedChallenge="21b6cd77",ReceivedHash="f597b2830bc8e17654d961a932edeaaa"
\[2019-09-23 14:57:01\] NOTICE\[2270\] chan_sip.c: Registration from '"104" \' failed for '74.63.255.138:5896' - Wrong password
\[2019-09-23 14:57:01\] SECURITY\[2283\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-23T14:57:01.246-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="104",SessionID="0x7fcd8c856e68",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.6

\[2019-09-22 12:15:45\] NOTICE\[2270\] chan_sip.c: Registration from '"666" \' failed for '74.63.255.138:5531' - Wrong password
\[2019-09-22 12:15:45\] SECURITY\[2283\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-22T12:15:45.196-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="666",SessionID="0x7fcd8c856e68",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.63.255.138/5531",Challenge="1478062b",ReceivedChallenge="1478062b",ReceivedHash="8c8eee6d299428ee46a9df7b18753e08"
\[2019-09-22 12:15:45\] NOTICE\[2270\] chan_sip.c: Registration from '"666" \' failed for '74.63.255.138:5531' - Wrong password
\[2019-09-22 12:15:45\] SECURITY\[2283\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-22T12:15:45.311-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="666",SessionID="0x7fcd8c297358",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.6

\[2019-09-21 18:57:59\] NOTICE\[2270\] chan_sip.c: Registration from '"104" \' failed for '74.63.255.138:5417' - Wrong password
\[2019-09-21 18:57:59\] SECURITY\[2283\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-21T18:57:59.746-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="104",SessionID="0x7fcd8c1615d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.63.255.138/5417",Challenge="12e9a994",ReceivedChallenge="12e9a994",ReceivedHash="f622ae21f4a2bc49f1a062e61c5da4ba"
\[2019-09-21 18:57:59\] NOTICE\[2270\] chan_sip.c: Registration from '"104" \' failed for '74.63.255.138:5417' - Wrong password
\[2019-09-21 18:57:59\] SECURITY\[2283\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-09-21T18:57:59.846-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="104",SessionID="0x7fcd8c297358",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/74.6

Honeypot attack, port: 445, PTR: 150-255-63-74.static.reverse.lstn.net.

445/tcp 445/tcp 445/tcp...
[2019-07-28/09-20]17pkt,1pt.(tcp)

445/tcp 445/tcp 445/tcp...
[2019-07-28/08-06]5pkt,1pt.(tcp)

firewall-block, port(s): 445/tcp

firewall-block, port(s): 445/tcp

Brute forcing email accounts

Oct  6 07:17:44 mockhub sshd[594341]: Failed password for root from 103.232.120.109 port 40164 ssh2
Oct  6 07:22:29 mockhub sshd[594459]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.232.120.109  user=root
Oct  6 07:22:32 mockhub sshd[594459]: Failed password for root from 103.232.120.109 port 39144 ssh2
...

Attempts against non-existent wp-login

Oct  6 16:10:43 sso sshd[11422]: Failed password for root from 112.85.42.112 port 57800 ssh2
Oct  6 16:10:54 sso sshd[11422]: Failed password for root from 112.85.42.112 port 57800 ssh2
...

Oct  6 12:37:52 scw-gallant-ride sshd[6009]: Failed password for root from 51.178.83.124 port 55792 ssh2

Oct  6 14:11:16 scw-6657dc sshd[14116]: Failed password for root from 61.177.172.107 port 43036 ssh2
Oct  6 14:11:16 scw-6657dc sshd[14116]: Failed password for root from 61.177.172.107 port 43036 ssh2
Oct  6 14:11:20 scw-6657dc sshd[14116]: Failed password for root from 61.177.172.107 port 43036 ssh2
...

Oct 6 10:26:46 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3f:fd:58:00:08:e3:ff:fd:90:08:00 SRC=116.85.31.216 DST=79.143.186.54 LEN=40 TOS=0x00 PREC=0x00 TTL=49 ID=13208 PROTO=TCP SPT=45182 DPT=23 WINDOW=37982 RES=0x00 SYN URGP=0 Oct 6 10:26:53 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3f:fd:58:00:08:e3:ff:fd:90:08:00 SRC=116.85.31.216 DST=79.143.186.54 LEN=40 TOS=0x00 PREC=0x00 TTL=49 ID=13208 PROTO=TCP SPT=45182 DPT=23 WINDOW=37982 RES=0x00 SYN URGP=0 Oct 6 10:26:59 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3f:fd:58:00:08:e3:ff:fd:90:08:00 SRC=116.85.31.216 DST=79.143.186.54 LEN=40 TOS=0x00 PREC=0x00 TTL=49 ID=13208 PROTO=TCP SPT=45182 DPT=23 WINDOW=37982 RES=0x00 SYN URGP=0

Oct  6 16:16:11 relay postfix/smtpd\[16426\]: warning: unknown\[141.98.80.190\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Oct  6 16:16:32 relay postfix/smtpd\[16426\]: warning: unknown\[141.98.80.190\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Oct  6 16:20:33 relay postfix/smtpd\[26253\]: warning: unknown\[141.98.80.190\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Oct  6 16:20:51 relay postfix/smtpd\[18786\]: warning: unknown\[141.98.80.190\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Oct  6 16:24:26 relay postfix/smtpd\[26136\]: warning: unknown\[141.98.80.190\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Automatic report - Port Scan Attack

Oct 5 22:42:14 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3f:fd:58:00:08:e3:ff:fd:90:08:00 SRC=27.202.239.187 DST=79.143.186.54 LEN=60 TOS=0x00 PREC=0x00 TTL=50 ID=57803 DF PROTO=TCP SPT=32882 DPT=80 WINDOW=29040 RES=0x00 SYN URGP=0 Oct 5 22:42:15 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3f:fd:58:00:08:e3:ff:fd:90:08:00 SRC=27.202.239.187 DST=79.143.186.54 LEN=60 TOS=0x00 PREC=0x00 TTL=50 ID=57804 DF PROTO=TCP SPT=32882 DPT=80 WINDOW=29040 RES=0x00 SYN URGP=0 Oct 5 22:42:17 *hidden* kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:3f:fd:58:00:08:e3:ff:fd:90:08:00 SRC=27.202.239.187 DST=79.143.186.54 LEN=60 TOS=0x00 PREC=0x00 TTL=50 ID=57805 DF PROTO=TCP SPT=32882 DPT=80 WINDOW=29040 RES=0x00 SYN URGP=0

Port Scan: TCP/443

Oct  6 23:14:10 web1 sshd[8449]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.136.31.34  user=root
Oct  6 23:14:12 web1 sshd[8449]: Failed password for root from 150.136.31.34 port 35620 ssh2
Oct  6 23:26:12 web1 sshd[12452]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.136.31.34  user=root
Oct  6 23:26:14 web1 sshd[12452]: Failed password for root from 150.136.31.34 port 51408 ssh2
Oct  6 23:29:43 web1 sshd[13555]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.136.31.34  user=root
Oct  6 23:29:46 web1 sshd[13555]: Failed password for root from 150.136.31.34 port 59826 ssh2
Oct  6 23:33:17 web1 sshd[14756]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=150.136.31.34  user=root
Oct  6 23:33:19 web1 sshd[14756]: Failed password for root from 150.136.31.34 port 40030 ssh2
Oct  6 23:36:58 web1 sshd[15998]: pam_
...

[2020-10-06 10:12:39] NOTICE[1182][C-000016c7] chan_sip.c: Call from '' (192.40.59.230:58061) to extension '9090011972595725668' rejected because extension not found in context 'public'.
[2020-10-06 10:12:39] SECURITY[1204] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-10-06T10:12:39.493-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9090011972595725668",SessionID="0x7f22f8572958",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/192.40.59.230/58061",ACLName="no_extension_match"
[2020-10-06 10:20:41] NOTICE[1182][C-000016ca] chan_sip.c: Call from '' (192.40.59.230:50200) to extension '-972595375946' rejected because extension not found in context 'public'.
[2020-10-06 10:20:41] SECURITY[1204] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-10-06T10:20:41.054-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="-972595375946",SessionID="0x7f22f854d238",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/
...

mail auth brute force

20/10/5@16:42:05: FAIL: Alarm-Network address from=180.253.21.149
20/10/5@16:42:05: FAIL: Alarm-Network address from=180.253.21.149
...