Oct  9 01:11:02 elp-server sshd[85411]: Unable to negotiate with 185.132.53.14 port 48206: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
Oct  9 01:11:19 elp-server sshd[85417]: Unable to negotiate with 185.132.53.14 port 48212: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
Oct  9 01:11:36 elp-server sshd[85423]: Unable to negotiate with 185.132.53.14 port 48258: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
...

(sshd) Failed SSH login from 185.132.53.14 (DE/Germany/vps32.virtual4host.pt): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct  8 11:51:30 server sshd[22256]: Did not receive identification string from 185.132.53.14 port 55218
Oct  8 11:51:58 server sshd[22312]: Failed password for root from 185.132.53.14 port 33202 ssh2
Oct  8 11:52:15 server sshd[22379]: Invalid user oracle from 185.132.53.14 port 33402
Oct  8 11:52:16 server sshd[22379]: Failed password for invalid user oracle from 185.132.53.14 port 33402 ssh2
Oct  8 11:52:35 server sshd[22457]: Failed password for root from 185.132.53.14 port 33592 ssh2

Oct  8 09:38:37 sd-69548 sshd[84133]: Unable to negotiate with 185.132.53.14 port 35272: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
Oct  8 09:38:55 sd-69548 sshd[84153]: Unable to negotiate with 185.132.53.14 port 58052: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
...

[N3.H3.VM3] Port Scanner Detected Blocked by UFW

2020-10-04 10:40:34.849649-0500  localhost sshd[74206]: Failed password for root from 185.132.53.14 port 35032 ssh2

Oct  4 10:17:28 server2 sshd\[32424\]: User root from vps32.virtual4host.pt not allowed because not listed in AllowUsers
Oct  4 10:17:45 server2 sshd\[32427\]: User root from vps32.virtual4host.pt not allowed because not listed in AllowUsers
Oct  4 10:18:01 server2 sshd\[32431\]: User root from vps32.virtual4host.pt not allowed because not listed in AllowUsers
Oct  4 10:18:18 server2 sshd\[32462\]: User root from vps32.virtual4host.pt not allowed because not listed in AllowUsers
Oct  4 10:18:36 server2 sshd\[32464\]: Invalid user telnet from 185.132.53.14
Oct  4 10:18:53 server2 sshd\[32470\]: Invalid user ubnt from 185.132.53.14

The sucker tried to brute force my teeny tiny SSH server

Sep 29 16:55:37 XXX sshd[41741]: Invalid user oracle from 185.132.53.14 port 40844

Sep 28 20:06:02 OPSO sshd\[1962\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.132.53.14  user=root
Sep 28 20:06:04 OPSO sshd\[1962\]: Failed password for root from 185.132.53.14 port 48780 ssh2
Sep 28 20:06:18 OPSO sshd\[2032\]: Invalid user oracle from 185.132.53.14 port 43816
Sep 28 20:06:18 OPSO sshd\[2032\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.132.53.14
Sep 28 20:06:20 OPSO sshd\[2032\]: Failed password for invalid user oracle from 185.132.53.14 port 43816 ssh2

Time:     Mon Sep 28 12:03:01 2020 +0200
IP:       185.132.53.14 (DE/Germany/32.virtual4host.pt)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Sep 28 12:01:36 3-1 sshd[5014]: Did not receive identification string from 185.132.53.14 port 47220
Sep 28 12:02:23 3-1 sshd[5054]: Failed password for root from 185.132.53.14 port 53030 ssh2
Sep 28 12:02:38 3-1 sshd[5072]: Invalid user oracle from 185.132.53.14 port 47438
Sep 28 12:02:39 3-1 sshd[5072]: Failed password for invalid user oracle from 185.132.53.14 port 47438 ssh2
Sep 28 12:02:57 3-1 sshd[5081]: Failed password for root from 185.132.53.14 port 41860 ssh2

Invalid user admin from 185.132.53.115 port 35110

Oct 13 10:06:29 ns1 sshd[78677]: Did not receive identification string from 185.132.53.115 port 44168
Oct 13 10:06:33 ns1 sshd[78678]: Unable to negotiate with 185.132.53.115 port 40660: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
Oct 13 10:06:49 ns1 sshd[78680]: Unable to negotiate with 185.132.53.115 port 41618: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
Oct 13 10:07:05 ns1 sshd[78682]: Unable to negotiate with 185.132.53.115 port 42644: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth]
Oct 13 10:07:20 ns1 sshd[78684]: Unable to negotiate with 185.132.53.115 port 43726: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group-e
...

Oct 12 20:59:42 targaryen sshd[6336]: Invalid user admin from 185.132.53.115
Oct 12 20:59:56 targaryen sshd[6338]: Invalid user admin from 185.132.53.115
Oct 12 21:00:12 targaryen sshd[6343]: Invalid user admin from 185.132.53.115
Oct 12 21:00:27 targaryen sshd[6345]: Invalid user admin from 185.132.53.115
...

SSH Brute Force (V)

Unauthorized connection attempt detected from IP address 185.132.53.85 to port 22

Oct  6 22:25:15 nas sshd[30358]: Failed password for root from 185.132.53.115 port 42610 ssh2
Oct  6 22:25:31 nas sshd[30780]: Failed password for root from 185.132.53.115 port 40618 ssh2
...

Oct  6 11:27:26 alfc-lms-prod01 sshd\[25821\]: Invalid user user from 185.132.53.124
Oct  6 11:27:33 alfc-lms-prod01 sshd\[25825\]: Invalid user git from 185.132.53.124
Oct  6 11:27:41 alfc-lms-prod01 sshd\[25827\]: Invalid user postgres from 185.132.53.124
...

Icarus honeypot on github

Oct  6 11:27:26 alfc-lms-prod01 sshd\[25821\]: Invalid user user from 185.132.53.124
Oct  6 11:27:33 alfc-lms-prod01 sshd\[25825\]: Invalid user git from 185.132.53.124
Oct  6 11:27:41 alfc-lms-prod01 sshd\[25827\]: Invalid user postgres from 185.132.53.124
...

Oct  6 06:18:41 ns382633 sshd\[16857\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.132.53.115  user=root
Oct  6 06:18:43 ns382633 sshd\[16857\]: Failed password for root from 185.132.53.115 port 39806 ssh2
Oct  6 06:18:55 ns382633 sshd\[16861\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.132.53.115  user=root
Oct  6 06:18:58 ns382633 sshd\[16861\]: Failed password for root from 185.132.53.115 port 33824 ssh2
Oct  6 06:19:11 ns382633 sshd\[17121\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.132.53.115  user=root

[N10.H2.VM2] Port Scanner Detected Blocked by UFW

fail2ban detected bruce force on ssh iptables

frenzy

 TCP (SYN) 185.132.53.124:58330 -> port 22, len 48

Oct  4 23:48:13 vps647732 sshd[7976]: Failed password for root from 185.132.53.85 port 51540 ssh2
...

SSH invalid-user multiple login try

trying to access non-authorized port

Automatic report - Port Scan Attack

Invalid user skinny from 175.207.13.22 port 59654

May 24 17:49:28 sshgateway sshd\[6452\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=142.93.235.47  user=root
May 24 17:49:30 sshgateway sshd\[6452\]: Failed password for root from 142.93.235.47 port 54312 ssh2
May 24 17:59:23 sshgateway sshd\[6554\]: Invalid user fwong from 142.93.235.47

(sshd) Failed SSH login from 116.6.234.145 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: May 24 18:19:09 amsweb01 sshd[3227]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.6.234.145  user=root
May 24 18:19:11 amsweb01 sshd[3227]: Failed password for root from 116.6.234.145 port 29675 ssh2
May 24 18:27:28 amsweb01 sshd[4022]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.6.234.145  user=root
May 24 18:27:31 amsweb01 sshd[4022]: Failed password for root from 116.6.234.145 port 29676 ssh2
May 24 18:30:09 amsweb01 sshd[4385]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=116.6.234.145  user=root

Automatic report - Banned IP Access

2020-05-24T11:36:45.0018211495-001 sshd[51449]: Invalid user telefony from 101.96.113.50 port 34838
2020-05-24T11:36:47.6087421495-001 sshd[51449]: Failed password for invalid user telefony from 101.96.113.50 port 34838 ssh2
2020-05-24T11:40:38.4525371495-001 sshd[51560]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.96.113.50  user=root
2020-05-24T11:40:40.7058611495-001 sshd[51560]: Failed password for root from 101.96.113.50 port 58570 ssh2
2020-05-24T11:44:14.0762131495-001 sshd[51685]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=101.96.113.50  user=root
2020-05-24T11:44:15.9828061495-001 sshd[51685]: Failed password for root from 101.96.113.50 port 54084 ssh2
...

Unauthorized connection attempt detected from IP address 95.9.247.11 to port 23

May 24 17:16:41 gitlab-ci sshd\[32224\]: Invalid user oracle from 37.49.226.173May 24 17:17:01 gitlab-ci sshd\[32239\]: Invalid user guest from 37.49.226.173
...

port

May 21 10:16:48 venus sshd[12356]: Invalid user fkl from 212.33.81.146
May 21 10:16:48 venus sshd[12356]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.33.81.146 
May 21 10:16:50 venus sshd[12356]: Failed password for invalid user fkl from 212.33.81.146 port 50888 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=212.33.81.146

SMB Server BruteForce Attack

May 24 14:15:54 vps687878 sshd\[10896\]: Failed password for invalid user ntz from 180.69.234.9 port 44094 ssh2
May 24 14:20:16 vps687878 sshd\[11314\]: Invalid user twr from 180.69.234.9 port 49731
May 24 14:20:16 vps687878 sshd\[11314\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.69.234.9
May 24 14:20:18 vps687878 sshd\[11314\]: Failed password for invalid user twr from 180.69.234.9 port 49731 ssh2
May 24 14:24:32 vps687878 sshd\[11603\]: Invalid user vlh from 180.69.234.9 port 55352
May 24 14:24:32 vps687878 sshd\[11603\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.69.234.9
...

2020-05-24T14:24:03.0818471495-001 sshd[57717]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.71.144.35
2020-05-24T14:24:03.0744431495-001 sshd[57717]: Invalid user ralph from 120.71.144.35 port 33668
2020-05-24T14:24:05.0577281495-001 sshd[57717]: Failed password for invalid user ralph from 120.71.144.35 port 33668 ssh2
2020-05-24T14:26:47.5188081495-001 sshd[57789]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.71.144.35  user=root
2020-05-24T14:26:49.3435841495-001 sshd[57789]: Failed password for root from 120.71.144.35 port 45796 ssh2
2020-05-24T14:29:38.6957801495-001 sshd[57923]: Invalid user user0 from 120.71.144.35 port 57886
...