\[2019-09-19 15:45:47\] NOTICE\[7412\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.66:56276' \(callid: 1097752430-134272716-183698984\) - Failed to authenticate
\[2019-09-19 15:45:47\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-09-19T15:45:47.552+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1097752430-134272716-183698984",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/145.239.0.66/56276",Challenge="1568900747/f02b12da0ed75713387b509517facc7c",Response="ede0c971ba7a367dbbdbe1938976153d",ExpectedResponse=""
\[2019-09-19 15:45:47\] NOTICE\[1168\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.66:56276' \(callid: 1097752430-134272716-183698984\) - Failed to authenticate
\[2019-09-19 15:45:47\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFaile

MultiHost/MultiPort Probe, Scan, Hack -

\[2019-10-30 08:20:25\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-30T08:20:25.529-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1791001018647127882",SessionID="0x7fdf2cd1cd48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/53735",ACLName="no_extension_match"
\[2019-10-30 08:20:34\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-30T08:20:34.162-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1799618647127882",SessionID="0x7fdf2c7144f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/50383",ACLName="no_extension_match"
\[2019-10-30 08:20:38\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-30T08:20:38.493-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="011018647127882",SessionID="0x7fdf2c745a48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/63554",ACLName="no_e

\[2019-10-30 04:03:15\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-30T04:03:15.855-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9176390018647127882",SessionID="0x7fdf2cc7a718",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/60928",ACLName="no_extension_match"
\[2019-10-30 04:03:21\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-30T04:03:21.953-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9176490018647127882",SessionID="0x7fdf2cd1cd48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/65124",ACLName="no_extension_match"
\[2019-10-30 04:03:28\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-30T04:03:28.278-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9176590018647127882",SessionID="0x7fdf2cae1298",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/52976",ACLNam

\[2019-10-29 04:16:59\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-29T04:16:59.656-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="99047187410018647127882",SessionID="0x7fdf2cc7a718",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/49584",ACLName="no_extension_match"
\[2019-10-29 04:17:05\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-29T04:17:05.790-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="99047185410018647127882",SessionID="0x7fdf2cccf908",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/54083",ACLName="no_extension_match"
\[2019-10-29 04:17:11\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-29T04:17:11.997-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="99047184410018647127882",SessionID="0x7fdf2cc27d48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.81/6

\[2019-10-25 23:40:23\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-25T23:40:23.289-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="456456011972567202500",SessionID="0x7fdf2c003608",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.76/62040",ACLName="no_extension_match"
\[2019-10-25 23:43:00\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-25T23:43:00.183-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12332111972567202500",SessionID="0x7fdf2c160cc8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.76/58745",ACLName="no_extension_match"
\[2019-10-25 23:45:25\] SECURITY\[2634\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2019-10-25T23:45:25.814-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="1235401972567202500",SessionID="0x7fdf2c160cc8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/145.239.0.76/57279",ACL

\[2019-09-21 10:48:32\] NOTICE\[29653\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.81:50184' \(callid: 77174822-1309346008-1391373692\) - Failed to authenticate
\[2019-09-21 10:48:32\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-09-21T10:48:32.153+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="77174822-1309346008-1391373692",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/145.239.0.81/50184",Challenge="1569055712/c63deb322dea58b9ab7889fac6d36200",Response="531c392b7364222530ea16c7095ea3e1",ExpectedResponse=""
\[2019-09-21 10:48:32\] NOTICE\[7412\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.81:50184' \(callid: 77174822-1309346008-1391373692\) - Failed to authenticate
\[2019-09-21 10:48:32\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFail

\[2019-09-21 01:16:28\] NOTICE\[28964\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.72:49244' \(callid: 2052651319-1545488846-1323134879\) - Failed to authenticate
\[2019-09-21 01:16:28\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-09-21T01:16:28.360+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="2052651319-1545488846-1323134879",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/145.239.0.72/49244",Challenge="1569021388/9708fec912cef4c7b5e47e0b2dfaae77",Response="f947cf3fa3601096fcb913b07f17169a",ExpectedResponse=""
\[2019-09-21 01:16:28\] NOTICE\[14660\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.72:49244' \(callid: 2052651319-1545488846-1323134879\) - Failed to authenticate
\[2019-09-21 01:16:28\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeRespo

\[2019-09-20 10:02:01\] NOTICE\[18654\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.72:58719' \(callid: 565353943-1156003181-109101563\) - Failed to authenticate
\[2019-09-20 10:02:01\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-09-20T10:02:01.804+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="565353943-1156003181-109101563",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/145.239.0.72/58719",Challenge="1568966521/440db8c71a99b7d968b84654a6f36c28",Response="d9166415d33a177bcf43fb07661d6770",ExpectedResponse=""
\[2019-09-20 10:02:01\] NOTICE\[9368\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.72:58719' \(callid: 565353943-1156003181-109101563\) - Failed to authenticate
\[2019-09-20 10:02:01\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFail

\[2019-09-19 12:44:16\] NOTICE\[24264\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.72:58548' \(callid: 1747344148-452039810-1581798561\) - Failed to authenticate
\[2019-09-19 12:44:16\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-09-19T12:44:16.047+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1747344148-452039810-1581798561",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/145.239.0.72/58548",Challenge="1568889855/6202d82d009b5c04780cf2286bb46856",Response="3fdb5a388ffa152c3434fabad3d69387",ExpectedResponse=""
\[2019-09-19 12:44:16\] NOTICE\[9368\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '145.239.0.72:58548' \(callid: 1747344148-452039810-1581798561\) - Failed to authenticate
\[2019-09-19 12:44:16\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseF

2020-06-21T14:14:16.8936701240 sshd\[9349\]: Invalid user xuy from 198.245.53.163 port 41382
2020-06-21T14:14:16.8974781240 sshd\[9349\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=198.245.53.163
2020-06-21T14:14:18.3434421240 sshd\[9349\]: Failed password for invalid user xuy from 198.245.53.163 port 41382 ssh2
...

Jun 21 17:36:06 vps sshd[542044]: Failed password for root from 180.167.225.118 port 45982 ssh2
Jun 21 17:39:03 vps sshd[553196]: Invalid user ubuntu from 180.167.225.118 port 34258
Jun 21 17:39:03 vps sshd[553196]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.167.225.118
Jun 21 17:39:05 vps sshd[553196]: Failed password for invalid user ubuntu from 180.167.225.118 port 34258 ssh2
Jun 21 17:42:04 vps sshd[570021]: Invalid user roberto from 180.167.225.118 port 51402
...

1592741680 - 06/21/2020 14:14:40 Host: 184.22.113.207/184.22.113.207 Port: 445 TCP Blocked

Brute forcing email accounts

Honeypot attack, port: 81, PTR: 121-254-113-195.veetime.com.

Jun 21 15:15:10 vpn01 sshd[12919]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.118.126.99
Jun 21 15:15:12 vpn01 sshd[12919]: Failed password for invalid user shenjun from 175.118.126.99 port 55602 ssh2
...

...

Unauthorized IMAP connection attempt

[2020-06-21 11:23:18] NOTICE[1273][C-000036e7] chan_sip.c: Call from '' (103.145.12.166:64886) to extension '14900046542208930' rejected because extension not found in context 'public'.
[2020-06-21 11:23:18] SECURITY[1288] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-06-21T11:23:18.488-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="14900046542208930",SessionID="0x7f31c02f97a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/103.145.12.166/64886",ACLName="no_extension_match"
[2020-06-21 11:23:37] NOTICE[1273][C-000036e9] chan_sip.c: Call from '' (103.145.12.166:51494) to extension '14910046542208930' rejected because extension not found in context 'public'.
[2020-06-21 11:23:37] SECURITY[1288] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-06-21T11:23:37.117-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="14910046542208930",SessionID="0x7f31c018ea98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress
...

Jun 21 12:24:21 vlre-nyc-1 sshd\[17720\]: Invalid user ple from 177.137.205.49
Jun 21 12:24:21 vlre-nyc-1 sshd\[17720\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.137.205.49
Jun 21 12:24:23 vlre-nyc-1 sshd\[17720\]: Failed password for invalid user ple from 177.137.205.49 port 41100 ssh2
Jun 21 12:28:31 vlre-nyc-1 sshd\[17846\]: Invalid user impressora from 177.137.205.49
Jun 21 12:28:31 vlre-nyc-1 sshd\[17846\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=177.137.205.49
...

Jun 21 12:14:50 marvibiene sshd[46814]: Invalid user workshop from 144.217.94.188 port 52750
Jun 21 12:14:50 marvibiene sshd[46814]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=144.217.94.188
Jun 21 12:14:50 marvibiene sshd[46814]: Invalid user workshop from 144.217.94.188 port 52750
Jun 21 12:14:52 marvibiene sshd[46814]: Failed password for invalid user workshop from 144.217.94.188 port 52750 ssh2
...

Jun 21 17:02:03 lnxmysql61 sshd[25829]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.22.228.39

Jun 21 16:33:14 blackbee postfix/smtpd\[19431\]: warning: unknown\[46.38.148.6\]: SASL LOGIN authentication failed: authentication failure
Jun 21 16:33:35 blackbee postfix/smtpd\[19418\]: warning: unknown\[46.38.148.6\]: SASL LOGIN authentication failed: authentication failure
Jun 21 16:33:55 blackbee postfix/smtpd\[19466\]: warning: unknown\[46.38.148.6\]: SASL LOGIN authentication failed: authentication failure
Jun 21 16:34:16 blackbee postfix/smtpd\[19418\]: warning: unknown\[46.38.148.6\]: SASL LOGIN authentication failed: authentication failure
Jun 21 16:34:37 blackbee postfix/smtpd\[19431\]: warning: unknown\[46.38.148.6\]: SASL LOGIN authentication failed: authentication failure
...

1592741658 - 06/21/2020 14:14:18 Host: 82.178.250.236/82.178.250.236 Port: 445 TCP Blocked

Honeypot attack, port: 445, PTR: host-217-56-92-58.business.telecomitalia.it.