$f2bV_matches

2020-06-14T08:02:16.743204abusebot-5.cloudsearch.cf sshd[24877]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=joinlincoln.org  user=root
2020-06-14T08:02:18.638758abusebot-5.cloudsearch.cf sshd[24877]: Failed password for root from 159.203.73.181 port 50048 ssh2
2020-06-14T08:08:31.077933abusebot-5.cloudsearch.cf sshd[24883]: Invalid user support from 159.203.73.181 port 37381
2020-06-14T08:08:31.083127abusebot-5.cloudsearch.cf sshd[24883]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=joinlincoln.org
2020-06-14T08:08:31.077933abusebot-5.cloudsearch.cf sshd[24883]: Invalid user support from 159.203.73.181 port 37381
2020-06-14T08:08:32.793282abusebot-5.cloudsearch.cf sshd[24883]: Failed password for invalid user support from 159.203.73.181 port 37381 ssh2
2020-06-14T08:11:48.443475abusebot-5.cloudsearch.cf sshd[24889]: Invalid user hci from 159.203.73.181 port 37117
...

Jun 14 12:35:05 sip sshd[645434]: Failed password for invalid user lvdd from 185.103.51.85 port 47948 ssh2
Jun 14 12:38:40 sip sshd[645504]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.103.51.85  user=root
Jun 14 12:38:41 sip sshd[645504]: Failed password for root from 185.103.51.85 port 50692 ssh2
...

Jun 14 07:59:48 lukav-desktop sshd\[10944\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.31.19.184  user=root
Jun 14 07:59:50 lukav-desktop sshd\[10944\]: Failed password for root from 191.31.19.184 port 39985 ssh2
Jun 14 08:05:13 lukav-desktop sshd\[18008\]: Invalid user weblogic from 191.31.19.184
Jun 14 08:05:14 lukav-desktop sshd\[18008\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.31.19.184
Jun 14 08:05:16 lukav-desktop sshd\[18008\]: Failed password for invalid user weblogic from 191.31.19.184 port 40541 ssh2

Jun 14 12:36:59 debian-2gb-nbg1-2 kernel: \[14389731.500298\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=180.166.141.58 DST=195.201.40.59 LEN=40 TOS=0x08 PREC=0x00 TTL=237 ID=6955 PROTO=TCP SPT=50029 DPT=6011 WINDOW=1024 RES=0x00 SYN URGP=0

SSH Bruteforce attack

Jun 13 19:53:03 kapalua sshd\[534\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=93-61-134-60.ip146.fastwebnet.it  user=root
Jun 13 19:53:05 kapalua sshd\[534\]: Failed password for root from 93.61.134.60 port 60744 ssh2
Jun 13 19:55:22 kapalua sshd\[804\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=93-61-134-60.ip146.fastwebnet.it  user=root
Jun 13 19:55:24 kapalua sshd\[804\]: Failed password for root from 93.61.134.60 port 36814 ssh2
Jun 13 19:57:53 kapalua sshd\[1071\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=93-61-134-60.ip146.fastwebnet.it  user=root

2020-06-14T03:19:00.838461morrigan.ad5gb.com sshd[16450]: Invalid user datadog from 70.65.174.69 port 58298
2020-06-14T03:19:02.233261morrigan.ad5gb.com sshd[16450]: Failed password for invalid user datadog from 70.65.174.69 port 58298 ssh2
2020-06-14T03:19:02.542548morrigan.ad5gb.com sshd[16450]: Disconnected from invalid user datadog 70.65.174.69 port 58298 [preauth]

Lines containing failures of 3.136.23.255
Jun 13 01:14:11 shared03 sshd[32117]: Invalid user ogrish from 3.136.23.255 port 38596
Jun 13 01:14:11 shared03 sshd[32117]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=3.136.23.255
Jun 13 01:14:13 shared03 sshd[32117]: Failed password for invalid user ogrish from 3.136.23.255 port 38596 ssh2
Jun 13 01:14:13 shared03 sshd[32117]: Received disconnect from 3.136.23.255 port 38596:11: Bye Bye [preauth]
Jun 13 01:14:13 shared03 sshd[32117]: Disconnected from invalid user ogrish 3.136.23.255 port 38596 [preauth]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=3.136.23.255

20/6/13@23:47:13: FAIL: IoT-Telnet address from=218.151.100.9
...

Jun 14 12:49:09 tuxlinux sshd[52365]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=195.54.160.180  user=root
...

v+ssh-bruteforce

[2020-06-14 06:45:36] NOTICE[1273][C-00000dfe] chan_sip.c: Call from '' (185.40.4.53:56337) to extension '0*11441235619322' rejected because extension not found in context 'public'.
[2020-06-14 06:45:36] SECURITY[1288] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-06-14T06:45:36.682-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="0*11441235619322",SessionID="0x7f31c018ea98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.40.4.53/56337",ACLName="no_extension_match"
[2020-06-14 06:46:41] NOTICE[1273][C-00000dff] chan_sip.c: Call from '' (185.40.4.53:64601) to extension '0*8011441235619322' rejected because extension not found in context 'public'.
...

[2020-06-14 06:29:32] NOTICE[1273] chan_sip.c: Registration from '' failed for '147.135.253.94:62163' - Wrong password
[2020-06-14 06:29:32] SECURITY[1288] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-14T06:29:32.934-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="6000",SessionID="0x7f31c02f97a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/147.135.253.94/62163",Challenge="792a1179",ReceivedChallenge="792a1179",ReceivedHash="87e1b49828737e46ec74362e3f039ec7"
[2020-06-14 06:29:56] NOTICE[1273] chan_sip.c: Registration from '' failed for '147.135.253.94:53963' - Wrong password
[2020-06-14 06:29:56] SECURITY[1288] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-06-14T06:29:56.689-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="152",SessionID="0x7f31c02f7128",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/147.135.253.
...

20/6/13@23:46:40: FAIL: Alarm-Network address from=195.206.62.226
...