Mar  8 23:38:28 debian-2gb-nbg1-2 kernel: \[5966262.364739\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=37.49.230.92 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=245 ID=58761 PROTO=TCP SPT=47099 DPT=5038 WINDOW=1024 RES=0x00 SYN URGP=0

ET CINS Active Threat Intelligence Poor Reputation IP group 19 - port: 5038 proto: TCP cat: Misc Attack

Unauthorised access (Feb  1) SRC=37.49.230.92 LEN=40 TTL=244 ID=63221 TCP DPT=3306 WINDOW=1024 SYN 
Unauthorised access (Jan 31) SRC=37.49.230.92 LEN=40 TTL=244 ID=26917 TCP DPT=21 WINDOW=1024 SYN 
Unauthorised access (Jan 29) SRC=37.49.230.92 LEN=40 TTL=244 ID=27223 TCP DPT=3306 WINDOW=1024 SYN

firewall-block, port(s): 21/tcp

Attempted to connect 3 times to port 5038 TCP

MultiHost/MultiPort Probe, Scan, Hack -

Bible

2020-10-13T06:44:21.356144news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
2020-10-13T06:44:25.395781news0 dovecot[21131]: pop3-login: Aborted login (auth failed, 1 attempts in 4 secs): user=, method=PLAIN, rip=37.49.230.238, lip=95.111.246.42, session=
2020-10-13T06:44:28.401407news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
...

2020-10-13T06:44:21.356144news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
2020-10-13T06:44:25.395781news0 dovecot[21131]: pop3-login: Aborted login (auth failed, 1 attempts in 4 secs): user=, method=PLAIN, rip=37.49.230.238, lip=95.111.246.42, session=
2020-10-13T06:44:28.401407news0 auth[956]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=admin rhost=37.49.230.238
...

Dovecot Invalid User Login Attempt.

"AmooT";tag=3533393765393339313363340132313832313335333935

\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.624+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffea08d88",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="096f171f",ReceivedChallenge="096f171f",ReceivedHash="b099bdfad5869da4ae2114a56a2b4299"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.759+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffeab8148",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="233a417c",ReceivedChallenge="233a417c",ReceivedHash="0017581d14759d4b5ad3a404ed924131"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.783+0200",Severity="Error",Service="SIP",EventVersion="2",Accoun
...

\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.624+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffea08d88",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="096f171f",ReceivedChallenge="096f171f",ReceivedHash="b099bdfad5869da4ae2114a56a2b4299"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.759+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="100",SessionID="0x7f0ffeab8148",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/37.49.230.126/5862",Challenge="233a417c",ReceivedChallenge="233a417c",ReceivedHash="0017581d14759d4b5ad3a404ed924131"
\[2020-10-02 15:01:13\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-02T15:01:13.783+0200",Severity="Error",Service="SIP",EventVersion="2",Accoun
...

[N1.H1.VM1] Port Scanner Detected Blocked by UFW

SIP Server BruteForce Attack

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

[2020-09-30 18:00:12] NOTICE[1159][C-0000421d] chan_sip.c: Call from '' (37.49.230.201:64644) to extension '12526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:12] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:12.866-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="12526890745",SessionID="0x7fcaa045f8f8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/64644",ACLName="no_extension_match"
[2020-09-30 18:00:26] NOTICE[1159][C-0000421f] chan_sip.c: Call from '' (37.49.230.201:57391) to extension '712526890745' rejected because extension not found in context 'public'.
[2020-09-30 18:00:26] SECURITY[1198] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-30T18:00:26.237-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="712526890745",SessionID="0x7fcaa04d8d08",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/37.49.230.201/
...

Hellooo

Hellooo

Sep 28 15:49:19 : SSH login attempts with invalid user

Dec 24 00:47:44 sso sshd[12491]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.179.179
Dec 24 00:47:46 sso sshd[12491]: Failed password for invalid user stewart from 51.38.179.179 port 53916 ssh2
...

Unauthorized connection attempt detected from IP address 14.162.186.101 to port 445

SMB Server BruteForce Attack

Dec 23 23:39:49 l02a sshd[30035]: Invalid user gemma from 91.240.86.223
Dec 23 23:39:49 l02a sshd[30035]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=91.240.86.223 
Dec 23 23:39:49 l02a sshd[30035]: Invalid user gemma from 91.240.86.223
Dec 23 23:39:51 l02a sshd[30035]: Failed password for invalid user gemma from 91.240.86.223 port 39698 ssh2

Dec 23 23:27:27 localhost sshd[31841]: Failed password for invalid user filmlight from 34.83.184.206 port 47906 ssh2
Dec 23 23:45:05 localhost sshd[32613]: Failed password for invalid user test2 from 34.83.184.206 port 39040 ssh2
Dec 23 23:47:21 localhost sshd[32744]: Failed password for invalid user 2309 from 34.83.184.206 port 36260 ssh2

Dec 23 23:36:08 localhost sshd[32241]: Failed password for invalid user rade from 129.211.16.236 port 52650 ssh2
Dec 23 23:45:30 localhost sshd[32630]: Failed password for invalid user cimula from 129.211.16.236 port 49534 ssh2
Dec 23 23:47:26 localhost sshd[32773]: Failed password for invalid user server from 129.211.16.236 port 56522 ssh2

SSH Bruteforce attempt

Unauthorized access VPN

Dec 24 02:19:34 server sshd\[3364\]: Invalid user ssh from 88.132.237.187
Dec 24 02:19:34 server sshd\[3364\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=88.132.237.187 
Dec 24 02:19:36 server sshd\[3364\]: Failed password for invalid user ssh from 88.132.237.187 port 57424 ssh2
Dec 24 02:35:56 server sshd\[7742\]: Invalid user adminttd from 88.132.237.187
Dec 24 02:35:56 server sshd\[7742\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=88.132.237.187 
...

Brute force attempt

Dec 23 14:07:34 php1 sshd\[27852\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.215  user=root
Dec 23 14:07:36 php1 sshd\[27852\]: Failed password for root from 222.186.173.215 port 48796 ssh2
Dec 23 14:07:47 php1 sshd\[27852\]: Failed password for root from 222.186.173.215 port 48796 ssh2
Dec 23 14:07:50 php1 sshd\[27852\]: Failed password for root from 222.186.173.215 port 48796 ssh2
Dec 23 14:07:59 php1 sshd\[27892\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.215  user=root

Dec 23 23:47:12 zulu412 sshd\[31594\]: Invalid user ouren from 118.25.105.121 port 48163
Dec 23 23:47:12 zulu412 sshd\[31594\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.105.121
Dec 23 23:47:14 zulu412 sshd\[31594\]: Failed password for invalid user ouren from 118.25.105.121 port 48163 ssh2
...

Dec 24 01:10:25 vps691689 sshd[4936]: Failed password for root from 180.76.249.74 port 58776 ssh2
Dec 24 01:18:34 vps691689 sshd[5038]: Failed password for root from 180.76.249.74 port 55730 ssh2
...

Dec 23 05:57:26 www sshd[21594]: reveeclipse mapping checking getaddrinfo for host240-40-211-80.serverdedicati.aruba.hostname [80.211.40.240] failed - POSSIBLE BREAK-IN ATTEMPT!
Dec 23 05:57:26 www sshd[21594]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.40.240  user=r.r
Dec 23 05:57:28 www sshd[21594]: Failed password for r.r from 80.211.40.240 port 49560 ssh2
Dec 23 05:57:28 www sshd[21609]: reveeclipse mapping checking getaddrinfo for host240-40-211-80.serverdedicati.aruba.hostname [80.211.40.240] failed - POSSIBLE BREAK-IN ATTEMPT!
Dec 23 05:57:28 www sshd[21609]: Invalid user admin from 80.211.40.240
Dec 23 05:57:28 www sshd[21609]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=80.211.40.240 
Dec 23 05:57:30 www sshd[21609]: Failed password for invalid user admin from 80.211.40.240 port 52338 ssh2
Dec 23 05:57:30 www sshd[21620]: reveeclipse mapping checking getaddrinfo for........
-------------------------------

Dec 23 23:47:03 pornomens sshd\[26520\]: Invalid user user from 212.47.238.207 port 42658
Dec 23 23:47:03 pornomens sshd\[26520\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.47.238.207
Dec 23 23:47:05 pornomens sshd\[26520\]: Failed password for invalid user user from 212.47.238.207 port 42658 ssh2
...