\[2019-08-29 22:29:23\] NOTICE\[28964\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.41.160:13653' \(callid: 1639810515-1912758407-67910016\) - Failed to authenticate
\[2019-08-29 22:29:23\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-08-29T22:29:23.341+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1639810515-1912758407-67910016",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/5.62.41.160/13653",Challenge="1567110563/811ea30bf70cda7d516dc26a671b66d5",Response="4ece16973e94f8d793a053492638713c",ExpectedResponse=""
\[2019-08-29 22:29:23\] NOTICE\[24264\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.41.160:13653' \(callid: 1639810515-1912758407-67910016\) - Failed to authenticate
\[2019-08-29 22:29:23\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFail

\[2019-08-28 18:18:39\] NOTICE\[32542\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.41.160:13667' \(callid: 514760253-688166206-2135887988\) - Failed to authenticate
\[2019-08-28 18:18:39\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-08-28T18:18:39.021+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="514760253-688166206-2135887988",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/5.62.41.160/13667",Challenge="1567009118/daf9f3de8300fc57602d3f1e36a827aa",Response="45b8e3290f33bbfc1fdd2f36c809bc11",ExpectedResponse=""
\[2019-08-28 18:18:39\] NOTICE\[603\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.41.160:13667' \(callid: 514760253-688166206-2135887988\) - Failed to authenticate
\[2019-08-28 18:18:39\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed

Port probing on unauthorized port 445

abuseConfidenceScore blocked for 12h

abuseConfidenceScore blocked for 12h

abuseConfidenceScore blocked for 12h

abuseConfidenceScore blocked for 12h

Wordpress malicious attack:[octablocked]

Time:     Mon Jun  8 06:05:39 2020 -0300
IP:       5.62.41.135 (DE/Germany/r-135-41-62-5.consumer-pool.prcdn.net)
Failures: 20 (WordPressBruteForcePOST)
Interval: 3600 seconds
Blocked:  Permanent Block

abuseConfidenceScore blocked for 12h

[munged]::80 5.62.41.135 - - [06/Jun/2020:14:29:10 +0200] "POST /[munged]: HTTP/1.1" 200 5565 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
[munged]::80 5.62.41.135 - - [06/Jun/2020:14:29:11 +0200] "POST /[munged]: HTTP/1.1" 200 5564 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
[munged]::80 5.62.41.135 - - [06/Jun/2020:14:29:11 +0200] "POST /[munged]: HTTP/1.1" 200 5564 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
[munged]::80 5.62.41.135 - - [06/Jun/2020:14:29:11 +0200] "POST /[munged]: HTTP/1.1" 200 5564 "http://[munged]:/[munged]:" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
[munged]::80 5.62.41.135 - - [06/Jun/2020:14:29:11 +0200] "P

[2020-06-03 00:03:34] Exploit probing - /wp-admin/admin-ajax.php?action=revslider_show_image&img=../wp-config.php

(From jasmin.fraire@googlemail.com) Want zero cost advertising for your website? Check out: http://www.submityourfreeads.xyz

[TueJan0722:16:06.0732602020][:error][pid19610:tid47836490135296][client5.62.41.148:15174][client5.62.41.148]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"python-requests/"atREQUEST_HEADERS:User-Agent.[file"/etc/apache2/conf.d/modsec_rules/20_asl_useragents.conf"][line"218"][id"332039"][rev"4"][msg"Atomicorp.comWAFRules:SuspiciousUnusualUserAgent\(python-requests\).Disablethisruleifyouusepython-requests/."][severity"CRITICAL"][hostname"bbverdemare.com"][uri"/wp-content/uploads/upload_index.php"][unique_id"XhT1FmzE5ruDsFs0f8xKgQAAAE0"][TueJan0722:17:08.3627952020][:error][pid19610:tid47836502742784][client5.62.41.148:15033][client5.62.41.148]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"python-requests/"atREQUEST_HEADERS:User-Agent.[file"/etc/apache2/conf.d/modsec_rules/20_asl_useragents.conf"][line"218"][id"332039"][rev"4"][msg"Atomicorp.comWAFRules:SuspiciousUnusualUserAgent\(python-requests\).Disablethisruleifyouusepython-requests/."][severity"CRITI

Automatic report - Banned IP Access

\[2019-09-09 07:38:37\] NOTICE\[9368\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.41.170:13190' \(callid: 1203170097-675946563-208547998\) - Failed to authenticate
\[2019-09-09 07:38:37\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-09-09T07:38:37.048+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1203170097-675946563-208547998",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/5.62.41.170/13190",Challenge="1568007516/caeaab6b3dc8e42027bf21bcce7af2a7",Response="6285afb57c0c154f3ebf9a6c9ab9cf39",ExpectedResponse=""
\[2019-09-09 07:38:37\] NOTICE\[1168\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.41.170:13190' \(callid: 1203170097-675946563-208547998\) - Failed to authenticate
\[2019-09-09 07:38:37\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",

\[2019-09-07 18:30:38\] NOTICE\[603\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.41.170:13069' \(callid: 1035677388-256703499-63010709\) - Failed to authenticate
\[2019-09-07 18:30:38\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2019-09-07T18:30:38.570+0200",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="\",SessionID="1035677388-256703499-63010709",LocalAddress="IPV4/UDP/188.40.118.248/5060",RemoteAddress="IPV4/UDP/5.62.41.170/13069",Challenge="1567873838/e585215322fc2d45e8e6e61ead7d842f",Response="52bea22b59483ba08df50250ae5e0caa",ExpectedResponse=""
\[2019-09-07 18:30:38\] NOTICE\[25634\] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '\' failed for '5.62.41.170:13069' \(callid: 1035677388-256703499-63010709\) - Failed to authenticate
\[2019-09-07 18:30:38\] SECURITY\[1715\] res_security_log.c: SecurityEvent="ChallengeResponseFailed",Eve

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

Nov  2 06:29:36 SilenceServices sshd[2601]: Failed password for root from 222.186.180.223 port 50642 ssh2
Nov  2 06:29:40 SilenceServices sshd[2601]: Failed password for root from 222.186.180.223 port 50642 ssh2
Nov  2 06:29:44 SilenceServices sshd[2601]: Failed password for root from 222.186.180.223 port 50642 ssh2
Nov  2 06:29:53 SilenceServices sshd[2601]: error: maximum authentication attempts exceeded for root from 222.186.180.223 port 50642 ssh2 [preauth]

Nov  1 18:45:32 sachi sshd\[32675\]: Invalid user a from 191.252.195.225
Nov  1 18:45:32 sachi sshd\[32675\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=vps8811.publiccloud.com.br
Nov  1 18:45:34 sachi sshd\[32675\]: Failed password for invalid user a from 191.252.195.225 port 37970 ssh2
Nov  1 18:50:20 sachi sshd\[617\]: Invalid user 123456 from 191.252.195.225
Nov  1 18:50:20 sachi sshd\[617\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=vps8811.publiccloud.com.br

2019-11-02T05:19:39.919851abusebot-8.cloudsearch.cf sshd\[5866\]: Invalid user test from 200.93.148.19 port 56254

[Sat Nov 02 01:41:39.302455 2019] [:error] [pid 48247] [client 77.45.213.127:58491] script '/var/www/www.periodicos.unifra.br/wp-login.php' not found or unable to stat, referer: https://www.google.com/
[Sat Nov 02 01:42:33.049600 2019] [:error] [pid 48247] [client 77.45.213.127:60183] script '/var/www/www.periodicos.unifra.br/wp-login.php' not found or unable to stat, referer: https://www.google.com/
[Sat Nov 02 01:46:58.093101 2019] [:error] [pid 45481] [client 77.45.213.127:52461] script '/var/www/www.periodicos.unifra.br/wp-login.php' not found or unable to stat, referer: https://www.google.com/
...

$f2bV_matches

/var/log/messages:Oct 29 13:31:46 sanyalnet-cloud-vps audispd: node=sanyalnet-cloud-vps.freeddns.org type=CRYPTO_SESSION msg=audhostname(1572355906.952:106663): pid=31918 uid=0 auid=4294967295 ses=4294967295 msg='op=start direction=from-server cipher=aes256-ctr ksize=256 mac=hmac-sha1 pfs=ecdh-sha2-nistp256 spid=31919 suid=74 rport=53541 laddr=104.167.106.93 lport=22  exe="/usr/sbin/sshd" hostname=? addr=124.42.117.243 terminal=? res=success'
/var/log/messages:Oct 29 13:31:46 sanyalnet-cloud-vps audispd: node=sanyalnet-cloud-vps.freeddns.org type=CRYPTO_SESSION msg=audhostname(1572355906.956:106664): pid=31918 uid=0 auid=4294967295 ses=4294967295 msg='op=start direction=from-client cipher=aes256-ctr ksize=256 mac=hmac-sha1 pfs=ecdh-sha2-nistp256 spid=31919 suid=74 rport=53541 laddr=104.167.106.93 lport=22  exe="/usr/sbin/sshd" hostname=? addr=124.42.117.243 terminal=? res=success'
/var/log/messages:Oct 29 13:31:48 sanyalnet-cloud-vps fail2ban.filter[1538]: INFO [sshd] F........
-------------------------------

Nov  2 05:55:33 localhost sshd\[29208\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.206.90.149  user=root
Nov  2 05:55:35 localhost sshd\[29208\]: Failed password for root from 123.206.90.149 port 35344 ssh2
Nov  2 06:01:04 localhost sshd\[29877\]: Invalid user masran from 123.206.90.149 port 42932
Nov  2 06:01:04 localhost sshd\[29877\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.206.90.149

Nov  2 08:25:45 server sshd\[17229\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.4  user=root
Nov  2 08:25:47 server sshd\[17229\]: Failed password for root from 222.186.42.4 port 13154 ssh2
Nov  2 08:25:47 server sshd\[17242\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.4  user=root
Nov  2 08:25:48 server sshd\[17246\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.4  user=root
Nov  2 08:25:49 server sshd\[17242\]: Failed password for root from 222.186.42.4 port 42758 ssh2
...

Nov  2 09:37:40 areeb-Workstation sshd[1210]: Failed password for root from 178.128.55.52 port 39549 ssh2
Nov  2 09:44:25 areeb-Workstation sshd[2483]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=178.128.55.52
...

slow and persistent scanner

2019-11-02T03:54:18.027505abusebot-5.cloudsearch.cf sshd\[19541\]: Invalid user robert from 121.157.82.214 port 46202

Nov  2 05:59:22 ns382633 sshd\[4508\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.115  user=root
Nov  2 05:59:25 ns382633 sshd\[4508\]: Failed password for root from 49.88.112.115 port 57916 ssh2
Nov  2 05:59:27 ns382633 sshd\[4508\]: Failed password for root from 49.88.112.115 port 57916 ssh2
Nov  2 05:59:29 ns382633 sshd\[4508\]: Failed password for root from 49.88.112.115 port 57916 ssh2
Nov  2 06:00:04 ns382633 sshd\[4528\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.115  user=root

Nov  2 06:59:54 server sshd\[25770\]: Invalid user test1 from 162.214.14.3 port 52418
Nov  2 06:59:54 server sshd\[25770\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=162.214.14.3
Nov  2 06:59:56 server sshd\[25770\]: Failed password for invalid user test1 from 162.214.14.3 port 52418 ssh2
Nov  2 07:03:40 server sshd\[28606\]: User root from 162.214.14.3 not allowed because listed in DenyUsers
Nov  2 07:03:40 server sshd\[28606\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=162.214.14.3  user=root

$f2bV_matches