Sep 10 02:48:45 h2177944 kernel: \[953060.592563\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.40.4.93 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=50460 DF PROTO=TCP SPT=1007 DPT=8037 WINDOW=512 RES=0x00 SYN URGP=0 
Sep 10 02:50:02 h2177944 kernel: \[953137.776015\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.40.4.93 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=50460 DF PROTO=TCP SPT=1011 DPT=7895 WINDOW=512 RES=0x00 SYN URGP=0 
Sep 10 02:54:48 h2177944 kernel: \[953423.539256\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.40.4.93 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=50460 DF PROTO=TCP SPT=1010 DPT=5003 WINDOW=512 RES=0x00 SYN URGP=0 
Sep 10 02:58:20 h2177944 kernel: \[953635.615839\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.40.4.93 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=50460 DF PROTO=TCP SPT=1019 DPT=8167 WINDOW=512 RES=0x00 SYN URGP=0 
Sep 10 03:23:20 h2177944 kernel: \[955135.404180\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=185.40.4.93 DST=85.214.117.9 LEN=40 TOS

Port scan on 24 port(s): 92 93 94 900 1234 6066 7070 7078 8000 8045 8070 8099 8100 8159 8160 8175 8190 8191 8192 8193 8524 8995 30000 56001

Port scan on 3 port(s): 8528 8585 8904

Unauthorised access (Aug 21) SRC=185.40.4.228 LEN=40 TTL=249 ID=33647 DF TCP DPT=8080 WINDOW=512 SYN

IP: 185.40.4.10
Ports affected
    HTTP protocol over TLS/SSL (443) 
Abuse Confidence rating 53%
Found in DNSBL('s)
ASN Details
   AS50113 NTX Technologies s.r.o.
   Russia (RU)
   CIDR 185.40.4.0/23
Log Date: 19/08/2020 11:45:22 AM UTC

Aug 19 07:26:44 webctf kernel: [2192658.414078] [UFW BLOCK] IN=ens3 OUT= MAC=fa:16:3e:1e:56:95:22:15:58:e0:52:53:08:00 SRC=185.40.4.228 DST=137.74.115.118 LEN=40 TOS=0x00 PREC=0x00 TTL=242 ID=1040 DF PROTO=TCP SPT=8 DPT=9899 WINDOW=512 RES=0x00 SYN URGP=0 
Aug 19 07:27:01 webctf kernel: [2192675.457115] [UFW BLOCK] IN=ens3 OUT= MAC=fa:16:3e:1e:56:95:22:15:58:e0:52:53:08:00 SRC=185.40.4.228 DST=137.74.115.118 LEN=40 TOS=0x00 PREC=0x00 TTL=242 ID=1040 DF PROTO=TCP SPT=3 DPT=8015 WINDOW=512 RES=0x00 SYN URGP=0 
Aug 19 07:28:05 webctf kernel: [2192739.413120] [UFW BLOCK] IN=ens3 OUT= MAC=fa:16:3e:1e:56:95:22:15:58:e0:52:53:08:00 SRC=185.40.4.228 DST=137.74.115.118 LEN=40 TOS=0x00 PREC=0x00 TTL=242 ID=1040 DF PROTO=TCP SPT=7 DPT=8250 WINDOW=512 RES=0x00 SYN URGP=0 
Aug 19 07:28:14 webctf kernel: [2192748.304717] [UFW BLOCK] IN=ens3 OUT= MAC=fa:16:3e:1e:56:95:22:15:58:e0:52:53:08:00 SRC=185.40.4.228 DST=137.74.115.118 LEN=40 TOS=0x00 PREC=0x00 TTL=242 ID=1040 DF PROTO=TCP SPT=15 DPT=8102 WIN
...

Port scan on 10 port(s): 8079 8226 8227 8228 8229 9011 9012 9013 9014 9912

[2020-08-11 12:36:01] NOTICE[1185] chan_sip.c: Registration from '"1532"' failed for '185.40.4.206:5902' - Wrong password
[2020-08-11 12:36:01] SECURITY[1203] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-08-11T12:36:01.089-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1532",SessionID="0x7f10c43e3a48",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.40.4.206/5902",Challenge="3b09517a",ReceivedChallenge="3b09517a",ReceivedHash="009674402867bf8e12213fa46021a4b0"
[2020-08-11 12:36:15] NOTICE[1185] chan_sip.c: Registration from '"1512"' failed for '185.40.4.206:9819' - Wrong password
[2020-08-11 12:36:15] SECURITY[1203] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-08-11T12:36:15.098-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="1512",SessionID="0x7f10c4270ff8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.40.
...

[2020-06-16 15:21:21] NOTICE[1273][C-000017ba] chan_sip.c: Call from '' (185.40.4.53:58544) to extension '++801146313116013' rejected because extension not found in context 'public'.
[2020-06-16 15:21:21] SECURITY[1288] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-06-16T15:21:21.019-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="++801146313116013",SessionID="0x7f31c018ea98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.40.4.53/58544",ACLName="no_extension_match"
[2020-06-16 15:23:20] NOTICE[1273][C-000017be] chan_sip.c: Call from '' (185.40.4.53:53352) to extension '++901146313116013' rejected because extension not found in context 'public'.
[2020-06-16 15:23:20] SECURITY[1288] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-06-16T15:23:20.610-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="++901146313116013",SessionID="0x7f31c02f97a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UD
...

[2020-06-14 16:08:59] NOTICE[1273][C-00000ffd] chan_sip.c: Call from '' (185.40.4.53:65289) to extension '800+441235619322' rejected because extension not found in context 'public'.
[2020-06-14 16:08:59] SECURITY[1288] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-06-14T16:08:59.414-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="800+441235619322",SessionID="0x7f31c02f97a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.40.4.53/65289",ACLName="no_extension_match"
[2020-06-14 16:10:00] NOTICE[1273][C-00000ffe] chan_sip.c: Call from '' (185.40.4.53:53613) to extension '800++441235619322' rejected because extension not found in context 'public'.
[2020-06-14 16:10:00] SECURITY[1288] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-06-14T16:10:00.751-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="800++441235619322",SessionID="0x7f31c02f97a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/
...

[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'.
...

Jun  3 17:06:36 [host] kernel: [7825185.722207] [U
Jun  3 17:08:26 [host] kernel: [7825295.450001] [U
Jun  3 17:10:15 [host] kernel: [7825404.591808] [U
Jun  3 17:39:33 [host] kernel: [7827161.909439] [U
Jun  3 17:45:53 [host] kernel: [7827542.158092] [U
Jun  3 17:52:57 [host] kernel: [7827965.896732] [U

[H1.VM8] Blocked by UFW

Port Scanner (UDP Port 1730)

firewall-block, port(s): 86/tcp, 87/tcp, 90/tcp, 95/tcp, 97/tcp, 98/tcp, 1082/tcp, 1085/tcp, 1101/tcp, 8080/tcp, 8230/tcp, 9096/tcp, 65000/tcp

firewall-block, port(s): 82/tcp, 89/tcp, 97/tcp, 500/tcp

[2020-04-22 01:16:47] NOTICE[1170][C-00003639] chan_sip.c: Call from '' (185.40.4.53:63322) to extension '011442038074728' rejected because extension not found in context 'public'.
[2020-04-22 01:16:47] SECURITY[1184] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-04-22T01:16:47.748-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="011442038074728",SessionID="0x7f6c0817f3c8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.40.4.53/63322",ACLName="no_extension_match"
[2020-04-22 01:19:14] NOTICE[1170][C-0000363c] chan_sip.c: Call from '' (185.40.4.53:65195) to extension '9011442038074728' rejected because extension not found in context 'public'.
[2020-04-22 01:19:14] SECURITY[1184] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-04-22T01:19:14.737-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="9011442038074728",SessionID="0x7f6c0825cda8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/185.
...

SSH Bruteforce attempt

" "

May 14 18:05:07 legacy sshd[2091]: Failed password for root from 218.92.0.192 port 26614 ssh2
May 14 18:05:09 legacy sshd[2091]: Failed password for root from 218.92.0.192 port 26614 ssh2
May 14 18:05:12 legacy sshd[2091]: Failed password for root from 218.92.0.192 port 26614 ssh2
...

Unauthorized connection attempt detected from IP address 184.105.247.194 to port 2323

Lines containing failures of 79.50.119.89 (max 1000)
May 13 11:46:20 UTC__SANYALnet-Labs__cac12 sshd[15781]: Connection from 79.50.119.89 port 52520 on 64.137.176.96 port 22
May 13 11:46:21 UTC__SANYALnet-Labs__cac12 sshd[15781]: reveeclipse mapping checking getaddrinfo for host-79-50-119-89.retail.telecomhostnamealia.hostname [79.50.119.89] failed - POSSIBLE BREAK-IN ATTEMPT!
May 13 11:46:21 UTC__SANYALnet-Labs__cac12 sshd[15781]: User r.r from 79.50.119.89 not allowed because not listed in AllowUsers
May 13 11:46:22 UTC__SANYALnet-Labs__cac12 sshd[15781]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=79.50.119.89  user=r.r
May 13 11:46:24 UTC__SANYALnet-Labs__cac12 sshd[15781]: Failed password for invalid user r.r from 79.50.119.89 port 52520 ssh2
May 13 11:46:24 UTC__SANYALnet-Labs__cac12 sshd[15781]: Received disconnect from 79.50.119.89 port 52520:11: Bye Bye [preauth]
May 13 11:46:24 UTC__SANYALnet-Labs__cac12 sshd[15781]: ........
------------------------------

05/14/2020-12:38:14.834066 188.166.229.205 Protocol: 6 ET SCAN NMAP -sS window 1024

May 14 16:20:03 debian-2gb-nbg1-2 kernel: \[11724856.674528\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=209.141.60.224 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=239 ID=54321 PROTO=TCP SPT=33430 DPT=8080 WINDOW=65535 RES=0x00 SYN URGP=0

spam

DATE:2020-05-14 18:16:49, IP:162.243.10.64, PORT:ssh SSH brute force auth (docker-dc)

May 14 18:51:24 legacy sshd[4217]: Failed password for root from 222.186.175.23 port 22784 ssh2
May 14 18:51:26 legacy sshd[4217]: Failed password for root from 222.186.175.23 port 22784 ssh2
May 14 18:51:29 legacy sshd[4217]: Failed password for root from 222.186.175.23 port 22784 ssh2
...

fail2ban

May 14 18:09:52 abendstille sshd\[26482\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.106.210  user=root
May 14 18:09:54 abendstille sshd\[26482\]: Failed password for root from 118.24.106.210 port 58820 ssh2
May 14 18:13:21 abendstille sshd\[29672\]: Invalid user admin from 118.24.106.210
May 14 18:13:21 abendstille sshd\[29672\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.24.106.210
May 14 18:13:23 abendstille sshd\[29672\]: Failed password for invalid user admin from 118.24.106.210 port 41138 ssh2
...

Fail2Ban Ban Triggered

Invalid user gmodserver from 167.114.115.33 port 35146

May 14 18:31:15 buvik sshd[31254]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=24.53.16.121
May 14 18:31:17 buvik sshd[31254]: Failed password for invalid user jrun from 24.53.16.121 port 33146 ssh2
May 14 18:33:49 buvik sshd[31651]: Invalid user testuser5 from 24.53.16.121
...

2020-05-14T14:04:22.858877dmca.cloudsearch.cf sshd[27858]: Invalid user hexin from 181.52.172.107 port 48432
2020-05-14T14:04:22.867172dmca.cloudsearch.cf sshd[27858]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.52.172.107
2020-05-14T14:04:22.858877dmca.cloudsearch.cf sshd[27858]: Invalid user hexin from 181.52.172.107 port 48432
2020-05-14T14:04:24.689744dmca.cloudsearch.cf sshd[27858]: Failed password for invalid user hexin from 181.52.172.107 port 48432 ssh2
2020-05-14T14:11:57.933127dmca.cloudsearch.cf sshd[28310]: Invalid user luccisano from 181.52.172.107 port 54796
2020-05-14T14:11:57.939811dmca.cloudsearch.cf sshd[28310]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.52.172.107
2020-05-14T14:11:57.933127dmca.cloudsearch.cf sshd[28310]: Invalid user luccisano from 181.52.172.107 port 54796
2020-05-14T14:11:59.892843dmca.cloudsearch.cf sshd[28310]: Failed password for invalid user luccis
...