[2020-10-10 09:15:30] NOTICE[1182] chan_sip.c: Registration from '"427"' failed for '212.83.148.177:7053' - Wrong password
[2020-10-10 09:15:30] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-10T09:15:30.028-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="427",SessionID="0x7f22f8572958",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.148.177/7053",Challenge="49f139a7",ReceivedChallenge="49f139a7",ReceivedHash="9d9d6ddcac527154926305de6353959a"
[2020-10-10 09:23:04] NOTICE[1182] chan_sip.c: Registration from '"425"' failed for '212.83.148.177:6962' - Wrong password
[2020-10-10 09:23:04] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-10T09:23:04.611-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="425",SessionID="0x7f22f854d238",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

[2020-10-03 19:31:43] NOTICE[1182] chan_sip.c: Registration from '"242"' failed for '212.83.148.177:6145' - Wrong password
[2020-10-03 19:31:43] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-03T19:31:43.657-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="242",SessionID="0x7f22f8572958",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.148.177/6145",Challenge="7b0a03da",ReceivedChallenge="7b0a03da",ReceivedHash="f9fa82c794bfb54fea7d2824e191af1a"
[2020-10-03 19:34:05] NOTICE[1182] chan_sip.c: Registration from '"243"' failed for '212.83.148.177:6214' - Wrong password
[2020-10-03 19:34:05] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-03T19:34:05.389-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="243",SessionID="0x7f22f828a178",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

[2020-10-03 11:53:45] NOTICE[1182] chan_sip.c: Registration from '"237"' failed for '212.83.148.177:5944' - Wrong password
[2020-10-03 11:53:45] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-03T11:53:45.187-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="237",SessionID="0x7f22f83b6678",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.148.177/5944",Challenge="21d8e1e3",ReceivedChallenge="21d8e1e3",ReceivedHash="e9331f836f1753399db96cb9c1b9bdc6"
[2020-10-03 12:02:05] NOTICE[1182] chan_sip.c: Registration from '"239"' failed for '212.83.148.177:6022' - Wrong password
[2020-10-03 12:02:05] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-03T12:02:05.020-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="239",SessionID="0x7f22f8572958",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

[2020-10-03 03:44:56] NOTICE[1182] chan_sip.c: Registration from '"222"' failed for '212.83.148.177:5296' - Wrong password
[2020-10-03 03:44:56] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-03T03:44:56.740-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="222",SessionID="0x7f22f83b6678",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.148.177/5296",Challenge="5991ad4d",ReceivedChallenge="5991ad4d",ReceivedHash="2b88d48f7f268587ce6c19b2779a065f"
[2020-10-03 03:45:03] NOTICE[1182] chan_sip.c: Registration from '"217"' failed for '212.83.148.177:5069' - Wrong password
[2020-10-03 03:45:03] SECURITY[1204] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-03T03:45:03.470-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="217",SessionID="0x7f22f80ba2f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

[2020-09-27 17:36:10] NOTICE[1159] chan_sip.c: Registration from '"128"' failed for '212.83.148.177:3737' - Wrong password
[2020-09-27 17:36:10] SECURITY[1198] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-27T17:36:10.350-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="128",SessionID="0x7fcaa0223ec8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.148.177/3737",Challenge="367e8367",ReceivedChallenge="367e8367",ReceivedHash="e2c7eccdc7c5a751f36d9a23def2cabb"
[2020-09-27 17:43:52] NOTICE[1159] chan_sip.c: Registration from '"129"' failed for '212.83.148.177:3777' - Wrong password
[2020-09-27 17:43:52] SECURITY[1198] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-27T17:43:52.674-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="129",SessionID="0x7fcaa0092e98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

[2020-09-27 09:31:40] NOTICE[1159] chan_sip.c: Registration from '"118"' failed for '212.83.148.177:3296' - Wrong password
[2020-09-27 09:31:40] SECURITY[1198] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-27T09:31:40.505-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="118",SessionID="0x7fcaa00dd368",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.148.177/3296",Challenge="00012a20",ReceivedChallenge="00012a20",ReceivedHash="c3fddeb7651cd44798b019568f56cd6e"
[2020-09-27 09:35:40] NOTICE[1159] chan_sip.c: Registration from '"121"' failed for '212.83.148.177:3430' - Wrong password
[2020-09-27 09:35:40] SECURITY[1198] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-27T09:35:40.296-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="121",SessionID="0x7fcaa00dd368",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

[2020-09-27 01:44:59] NOTICE[1159] chan_sip.c: Registration from '"122"' failed for '212.83.148.177:3497' - Wrong password
[2020-09-27 01:44:59] SECURITY[1198] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-27T01:44:59.587-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="122",SessionID="0x7fcaa0022038",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.148.177/3497",Challenge="7ebbe4e4",ReceivedChallenge="7ebbe4e4",ReceivedHash="0038cf04ba0204c5e3eef4642d9483e0"
[2020-09-27 01:54:17] NOTICE[1159] chan_sip.c: Registration from '"111"' failed for '212.83.148.177:3054' - Wrong password
[2020-09-27 01:54:17] SECURITY[1198] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-09-27T01:54:17.389-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="111",SessionID="0x7fcaa0022038",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.
...

From CCTV User Interface Log
...::ffff:212.83.148.180 - - [09/Oct/2019:07:29:39 +0000] "-" 400 0
...

SIP Server BruteForce Attack

MultiHost/MultiPort Probe, Scan, Hack -

MultiHost/MultiPort Probe, Scan, Hack -

Portscan or hack attempt detected by psad/fwsnort

Portscan or hack attempt detected by psad/fwsnort

SIP Server BruteForce Attack

Automatic report - Port Scan Attack

$f2bV_matches

Jul 12 10:43:57 piServer sshd[11598]: Failed password for root from 222.186.173.215 port 15590 ssh2
Jul 12 10:44:02 piServer sshd[11598]: Failed password for root from 222.186.173.215 port 15590 ssh2
Jul 12 10:44:07 piServer sshd[11598]: Failed password for root from 222.186.173.215 port 15590 ssh2
Jul 12 10:44:11 piServer sshd[11598]: Failed password for root from 222.186.173.215 port 15590 ssh2
...

Jul 12 11:07:54 relay postfix/smtpd\[27912\]: warning: unknown\[46.38.145.247\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 11:08:49 relay postfix/smtpd\[30657\]: warning: unknown\[46.38.145.247\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 11:09:02 relay postfix/smtpd\[31784\]: warning: unknown\[46.38.145.247\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 11:09:55 relay postfix/smtpd\[635\]: warning: unknown\[46.38.145.247\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 11:10:08 relay postfix/smtpd\[30231\]: warning: unknown\[46.38.145.247\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

"fail2ban match"

WordPress login Brute force / Web App Attack on client site.

2020-07-12 10:51:26 dovecot_login authenticator failed for \(ADMIN\) \[193.56.28.125\]: 535 Incorrect authentication data \(set_id=kathie@no-server.de\)
2020-07-12 10:51:26 dovecot_login authenticator failed for \(ADMIN\) \[193.56.28.125\]: 535 Incorrect authentication data \(set_id=madge@no-server.de\)
2020-07-12 10:53:41 dovecot_login authenticator failed for \(ADMIN\) \[193.56.28.125\]: 535 Incorrect authentication data \(set_id=care@no-server.de\)
2020-07-12 10:53:41 dovecot_login authenticator failed for \(ADMIN\) \[193.56.28.125\]: 535 Incorrect authentication data \(set_id=winter@no-server.de\)
2020-07-12 11:00:30 dovecot_login authenticator failed for \(ADMIN\) \[193.56.28.125\]: 535 Incorrect authentication data \(set_id=harald.schueller@jugend-ohne-grenzen.net\)
...

Jul 12 10:47:02 srv01 postfix/smtpd\[11190\]: warning: unknown\[185.143.73.175\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 10:47:44 srv01 postfix/smtpd\[24147\]: warning: unknown\[185.143.73.175\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 10:48:24 srv01 postfix/smtpd\[29841\]: warning: unknown\[185.143.73.175\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 10:49:08 srv01 postfix/smtpd\[11190\]: warning: unknown\[185.143.73.175\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 10:49:50 srv01 postfix/smtpd\[26962\]: warning: unknown\[185.143.73.175\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Jul 12 11:03:34 relay postfix/smtpd\[30655\]: warning: unknown\[46.38.145.250\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 11:04:01 relay postfix/smtpd\[27908\]: warning: unknown\[46.38.145.250\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 11:04:34 relay postfix/smtpd\[30657\]: warning: unknown\[46.38.145.250\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 11:05:04 relay postfix/smtpd\[31784\]: warning: unknown\[46.38.145.250\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 12 11:05:41 relay postfix/smtpd\[635\]: warning: unknown\[46.38.145.250\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Icarus honeypot on github

2020-07-12T07:49:53.472305galaxy.wi.uni-potsdam.de sshd[12486]: Invalid user test from 49.233.212.154 port 57064
2020-07-12T07:49:53.474219galaxy.wi.uni-potsdam.de sshd[12486]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.212.154
2020-07-12T07:49:53.472305galaxy.wi.uni-potsdam.de sshd[12486]: Invalid user test from 49.233.212.154 port 57064
2020-07-12T07:49:55.623878galaxy.wi.uni-potsdam.de sshd[12486]: Failed password for invalid user test from 49.233.212.154 port 57064 ssh2
2020-07-12T07:52:54.409197galaxy.wi.uni-potsdam.de sshd[12829]: Invalid user shupin from 49.233.212.154 port 60588
2020-07-12T07:52:54.411102galaxy.wi.uni-potsdam.de sshd[12829]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.212.154
2020-07-12T07:52:54.409197galaxy.wi.uni-potsdam.de sshd[12829]: Invalid user shupin from 49.233.212.154 port 60588
2020-07-12T07:52:56.074169galaxy.wi.uni-potsdam.de sshd[12829]: Failed p
...

leo_www

Jul 12 10:45:00 ns382633 sshd\[20021\]: Invalid user fcweb from 138.91.122.59 port 54168
Jul 12 10:45:00 ns382633 sshd\[20021\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.91.122.59
Jul 12 10:45:03 ns382633 sshd\[20021\]: Failed password for invalid user fcweb from 138.91.122.59 port 54168 ssh2
Jul 12 10:54:58 ns382633 sshd\[21723\]: Invalid user admin from 138.91.122.59 port 59284
Jul 12 10:54:58 ns382633 sshd\[21723\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.91.122.59

2020-07-12T07:00:42.253777abusebot-5.cloudsearch.cf sshd[25964]: Invalid user librenms from 119.28.221.132 port 36526
2020-07-12T07:00:42.259466abusebot-5.cloudsearch.cf sshd[25964]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.28.221.132
2020-07-12T07:00:42.253777abusebot-5.cloudsearch.cf sshd[25964]: Invalid user librenms from 119.28.221.132 port 36526
2020-07-12T07:00:44.388760abusebot-5.cloudsearch.cf sshd[25964]: Failed password for invalid user librenms from 119.28.221.132 port 36526 ssh2
2020-07-12T07:05:09.192032abusebot-5.cloudsearch.cf sshd[25980]: Invalid user admin from 119.28.221.132 port 33962
2020-07-12T07:05:09.197965abusebot-5.cloudsearch.cf sshd[25980]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=119.28.221.132
2020-07-12T07:05:09.192032abusebot-5.cloudsearch.cf sshd[25980]: Invalid user admin from 119.28.221.132 port 33962
2020-07-12T07:05:11.315332abusebot-5.cloudsearch.cf ssh
...

Jul 12 05:33:55 mail.srvfarm.net postfix/smtpd[1865114]: warning: unknown[177.130.160.143]: SASL PLAIN authentication failed: 
Jul 12 05:33:56 mail.srvfarm.net postfix/smtpd[1865114]: lost connection after AUTH from unknown[177.130.160.143]
Jul 12 05:42:36 mail.srvfarm.net postfix/smtps/smtpd[1865743]: warning: unknown[177.130.160.143]: SASL PLAIN authentication failed: 
Jul 12 05:42:36 mail.srvfarm.net postfix/smtps/smtpd[1865743]: lost connection after AUTH from unknown[177.130.160.143]
Jul 12 05:43:32 mail.srvfarm.net postfix/smtps/smtpd[1864281]: warning: unknown[177.130.160.143]: SASL PLAIN authentication failed:

2020-07-12T02:31:18.532698linuxbox-skyline sshd[886819]: Invalid user automl from 187.35.129.125 port 56632
...