suspicious action Tue, 10 Mar 2020 15:13:45 -0300

Lines containing failures of 80.211.143.224
Apr 13 09:59:14 shared12 sshd[26464]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.143.224  user=r.r
Apr 13 09:59:16 shared12 sshd[26464]: Failed password for r.r from 80.211.143.224 port 37812 ssh2
Apr 13 09:59:16 shared12 sshd[26464]: Received disconnect from 80.211.143.224 port 37812:11: Bye Bye [preauth]
Apr 13 09:59:16 shared12 sshd[26464]: Disconnected from authenticating user r.r 80.211.143.224 port 37812 [preauth]
Apr 13 10:12:43 shared12 sshd[30873]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.143.224  user=r.r
Apr 13 10:12:46 shared12 sshd[30873]: Failed password for r.r from 80.211.143.224 port 49826 ssh2
Apr 13 10:12:46 shared12 sshd[30873]: Received disconnect from 80.211.143.224 port 49826:11: Bye Bye [preauth]
Apr 13 10:12:46 shared12 sshd[30873]: Disconnected from authenticating user r.r 80.211.143.224 port 49826........
------------------------------

\[2019-12-31 09:49:07\] NOTICE\[2839\] chan_sip.c: Registration from '"603" \' failed for '80.211.143.24:5064' - Wrong password
\[2019-12-31 09:49:07\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-31T09:49:07.956-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="603",SessionID="0x7f0fb4147b68",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/80.211.143.24/5064",Challenge="597506ad",ReceivedChallenge="597506ad",ReceivedHash="af2ecd6e9261f7df0ac9e90f732a19d9"
\[2019-12-31 09:53:09\] NOTICE\[2839\] chan_sip.c: Registration from '"502" \' failed for '80.211.143.24:5062' - Wrong password
\[2019-12-31 09:53:09\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-31T09:53:09.170-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="502",SessionID="0x7f0fb4702148",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/80.2

\[2019-12-30 03:38:19\] NOTICE\[2839\] chan_sip.c: Registration from '"609" \' failed for '80.211.143.24:5064' - Wrong password
\[2019-12-30 03:38:19\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-30T03:38:19.962-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="609",SessionID="0x7f0fb4a23ed8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/80.211.143.24/5064",Challenge="13bc841e",ReceivedChallenge="13bc841e",ReceivedHash="7ebd34ebc554a19701819a3c459c8743"
\[2019-12-30 03:38:29\] NOTICE\[2839\] chan_sip.c: Registration from '"801" \' failed for '80.211.143.24:5072' - Wrong password
\[2019-12-30 03:38:29\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-30T03:38:29.073-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="801",SessionID="0x7f0fb41a7f38",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/80.2

\[2019-12-30 00:39:40\] NOTICE\[2839\] chan_sip.c: Registration from '"800" \' failed for '80.211.143.24:5060' - Wrong password
\[2019-12-30 00:39:40\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-30T00:39:40.628-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="800",SessionID="0x7f0fb4a5a908",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/80.211.143.24/5060",Challenge="635d366a",ReceivedChallenge="635d366a",ReceivedHash="e0d3fff53b5c9ab1c9f759e6d39260d2"
\[2019-12-30 00:40:10\] NOTICE\[2839\] chan_sip.c: Registration from '"608" \' failed for '80.211.143.24:5073' - Wrong password
\[2019-12-30 00:40:10\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-30T00:40:10.732-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="608",SessionID="0x7f0fb41a7f38",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/80.2

\[2019-12-26 07:58:29\] NOTICE\[2839\] chan_sip.c: Registration from '"55555" \' failed for '80.211.143.24:5082' - Wrong password
\[2019-12-26 07:58:29\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-26T07:58:29.281-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="55555",SessionID="0x7f0fb4a5a908",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/80.211.143.24/5082",Challenge="4ac27446",ReceivedChallenge="4ac27446",ReceivedHash="cff0d3cb28346efde55b8befa6741e0e"
\[2019-12-26 07:59:22\] NOTICE\[2839\] chan_sip.c: Registration from '"48" \' failed for '80.211.143.24:5098' - Wrong password
\[2019-12-26 07:59:22\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-26T07:59:22.427-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="48",SessionID="0x7f0fb4a5a908",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/8

\[2019-12-25 17:14:52\] NOTICE\[2839\] chan_sip.c: Registration from '"2000" \' failed for '80.211.143.24:5081' - Wrong password
\[2019-12-25 17:14:52\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-25T17:14:52.397-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="2000",SessionID="0x7f0fb4a5a908",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/80.211.143.24/5081",Challenge="2110e1df",ReceivedChallenge="2110e1df",ReceivedHash="ed51419056a3aa4deeee4c388931121e"
\[2019-12-25 17:16:31\] NOTICE\[2839\] chan_sip.c: Registration from '"4006" \' failed for '80.211.143.24:5087' - Wrong password
\[2019-12-25 17:16:31\] SECURITY\[2857\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2019-12-25T17:16:31.918-0500",Severity="Error",Service="SIP",EventVersion="2",AccountID="4006",SessionID="0x7f0fb43ff028",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UD

Sep 24 19:16:48 hcbb sshd\[22135\]: Invalid user test from 79.137.72.171
Sep 24 19:16:48 hcbb sshd\[22135\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.ip-79-137-72.eu
Sep 24 19:16:50 hcbb sshd\[22135\]: Failed password for invalid user test from 79.137.72.171 port 33674 ssh2
Sep 24 19:21:14 hcbb sshd\[22488\]: Invalid user user7 from 79.137.72.171
Sep 24 19:21:14 hcbb sshd\[22488\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.ip-79-137-72.eu

Sep 25 02:05:05 plusreed sshd[16777]: Invalid user zhou from 133.130.90.174
...

Sep 25 07:06:47 www1 sshd\[1860\]: Invalid user tms from 106.13.46.114Sep 25 07:06:49 www1 sshd\[1860\]: Failed password for invalid user tms from 106.13.46.114 port 49124 ssh2Sep 25 07:10:14 www1 sshd\[2322\]: Invalid user oracle from 106.13.46.114Sep 25 07:10:16 www1 sshd\[2322\]: Failed password for invalid user oracle from 106.13.46.114 port 46572 ssh2Sep 25 07:13:43 www1 sshd\[2616\]: Invalid user hadoop from 106.13.46.114Sep 25 07:13:45 www1 sshd\[2616\]: Failed password for invalid user hadoop from 106.13.46.114 port 44024 ssh2
...

www.lust-auf-land.com 108.179.219.114 \[25/Sep/2019:05:53:19 +0200\] "POST /wp-login.php HTTP/1.1" 200 5828 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
www.lust-auf-land.com 108.179.219.114 \[25/Sep/2019:05:53:21 +0200\] "POST /wp-login.php HTTP/1.1" 200 5787 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"

Unauthorised access (Sep 25) SRC=122.46.238.21 LEN=40 TTL=43 ID=8178 TCP DPT=8080 WINDOW=11491 SYN

Sep 23 07:20:33 ACSRAD auth.info sshd[21951]: Invalid user kc from 125.45.90.28 port 39048
Sep 23 07:20:33 ACSRAD auth.info sshd[21951]: Failed password for invalid user kc from 125.45.90.28 port 39048 ssh2
Sep 23 07:20:34 ACSRAD auth.info sshd[21951]: Received disconnect from 125.45.90.28 port 39048:11: Bye Bye [preauth]
Sep 23 07:20:34 ACSRAD auth.info sshd[21951]: Disconnected from 125.45.90.28 port 39048 [preauth]
Sep 23 07:20:34 ACSRAD auth.notice sshguard[30767]: Attack from "125.45.90.28" on service 100 whostnameh danger 10.
Sep 23 07:20:34 ACSRAD auth.notice sshguard[30767]: Attack from "125.45.90.28" on service 100 whostnameh danger 10.
Sep 23 07:20:34 ACSRAD auth.notice sshguard[30767]: Attack from "125.45.90.28" on service 100 whostnameh danger 10.
Sep 23 07:20:34 ACSRAD auth.warn sshguard[30767]: Blocking "125.45.90.28/32" for 120 secs (3 attacks in 0 secs, after 1 abuses over 0 secs.)
Sep 23 07:25:13 ACSRAD auth.info sshd[24533]: Invalid user loverd from 125........
------------------------------

2019-09-25T00:43:55.5438651495-001 sshd\[24013\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.140.180
2019-09-25T00:43:57.3723021495-001 sshd\[24013\]: Failed password for invalid user ubnt from 157.230.140.180 port 38926 ssh2
2019-09-25T00:55:53.3653901495-001 sshd\[24839\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.140.180  user=operator
2019-09-25T00:55:56.0985351495-001 sshd\[24839\]: Failed password for operator from 157.230.140.180 port 49698 ssh2
2019-09-25T01:07:51.4436401495-001 sshd\[25735\]: Invalid user csilla from 157.230.140.180 port 60500
2019-09-25T01:07:51.4534941495-001 sshd\[25735\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=157.230.140.180
...

Scanning and Vuln Attempts

09/24/2019-23:53:10.183821 51.79.128.154 Protocol: 6 ET SCAN NMAP -sS window 1024

Sep 24 20:14:59 tdfoods sshd\[3926\]: Invalid user malena from 104.248.121.67
Sep 24 20:14:59 tdfoods sshd\[3926\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.248.121.67
Sep 24 20:15:00 tdfoods sshd\[3926\]: Failed password for invalid user malena from 104.248.121.67 port 51299 ssh2
Sep 24 20:19:07 tdfoods sshd\[4288\]: Invalid user matt from 104.248.121.67
Sep 24 20:19:07 tdfoods sshd\[4288\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.248.121.67

2019-09-25T13:38:51.548471enmeeting.mahidol.ac.th sshd\[21167\]: User root from 222.186.15.160 not allowed because not listed in AllowUsers
2019-09-25T13:38:51.887557enmeeting.mahidol.ac.th sshd\[21167\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.15.160  user=root
2019-09-25T13:38:53.751618enmeeting.mahidol.ac.th sshd\[21167\]: Failed password for invalid user root from 222.186.15.160 port 34684 ssh2
...

Sep 25 07:55:10 www sshd\[41247\]: Invalid user pass from 177.41.91.90Sep 25 07:55:12 www sshd\[41247\]: Failed password for invalid user pass from 177.41.91.90 port 59118 ssh2Sep 25 08:00:39 www sshd\[41403\]: Invalid user webftp from 177.41.91.90
...

Brute force attempt

Unauthorised access (Sep 25) SRC=211.97.19.8 LEN=40 TTL=49 ID=1438 TCP DPT=8080 WINDOW=14996 SYN

Sep 24 20:28:52 aiointranet sshd\[32735\]: Invalid user play from 103.212.64.98
Sep 24 20:28:52 aiointranet sshd\[32735\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.212.64.98
Sep 24 20:28:54 aiointranet sshd\[32735\]: Failed password for invalid user play from 103.212.64.98 port 51180 ssh2
Sep 24 20:34:05 aiointranet sshd\[734\]: Invalid user git from 103.212.64.98
Sep 24 20:34:05 aiointranet sshd\[734\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.212.64.98