Apr 29 14:44:22 relay postfix/smtpd\[18663\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 29 14:46:35 relay postfix/smtpd\[19896\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 29 14:47:00 relay postfix/smtpd\[12714\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 29 14:47:52 relay postfix/smtpd\[18691\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 29 14:49:08 relay postfix/smtpd\[13138\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Apr 23 00:49:43 web01.agentur-b-2.de postfix/smtpd[444633]: lost connection after CONNECT from unknown[45.95.168.159]
Apr 23 00:53:14 web01.agentur-b-2.de postfix/smtpd[444633]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 23 00:53:14 web01.agentur-b-2.de postfix/smtpd[444633]: lost connection after AUTH from unknown[45.95.168.159]
Apr 23 00:55:53 web01.agentur-b-2.de postfix/smtpd[444633]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 23 00:55:53 web01.agentur-b-2.de postfix/smtpd[444633]: lost connection after AUTH from unknown[45.95.168.159]

Apr 21 22:39:07 mail.srvfarm.net postfix/smtpd[2932133]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 21 22:39:07 mail.srvfarm.net postfix/smtpd[2932098]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 21 22:39:07 mail.srvfarm.net postfix/smtpd[2932098]: lost connection after AUTH from unknown[45.95.168.159]
Apr 21 22:39:07 mail.srvfarm.net postfix/smtpd[2932133]: lost connection after AUTH from unknown[45.95.168.159]
Apr 21 22:39:12 mail.srvfarm.net postfix/smtpd[2933312]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 21 22:39:12 mail.srvfarm.net postfix/smtpd[2933312]: lost connection after AUTH from unknown[45.95.168.159]

Apr 17 07:44:25 mail.srvfarm.net postfix/smtpd[3343861]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 17 07:44:25 mail.srvfarm.net postfix/smtpd[3343861]: lost connection after AUTH from unknown[45.95.168.159]
Apr 17 07:48:05 mail.srvfarm.net postfix/smtpd[3343861]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 17 07:48:05 mail.srvfarm.net postfix/smtpd[3360040]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 17 07:48:05 mail.srvfarm.net postfix/smtpd[3363710]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 17 07:48:05 mail.srvfarm.net postfix/smtpd[3363600]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Apr 13 22:06:58 web01.agentur-b-2.de postfix/smtpd[627663]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 13 22:06:58 web01.agentur-b-2.de postfix/smtpd[627663]: lost connection after AUTH from unknown[45.95.168.159]
Apr 13 22:07:12 web01.agentur-b-2.de postfix/smtpd[627445]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 13 22:07:12 web01.agentur-b-2.de postfix/smtpd[627445]: lost connection after AUTH from unknown[45.95.168.159]
Apr 13 22:07:57 web01.agentur-b-2.de postfix/smtpd[627445]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 13 22:07:57 web01.agentur-b-2.de postfix/smtpd[627445]: lost connection after AUTH from unknown[45.95.168.159]

smtp probe/invalid login attempt

(smtpauth) Failed SMTP AUTH login from 45.95.168.159 (HR/Croatia/maxko-hosting.com): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-04-10 23:17:33 login authenticator failed for (USER) [45.95.168.159]: 535 Incorrect authentication data (set_id=www@nassajpour.net)

Apr 10 09:03:02 mail.srvfarm.net postfix/smtpd[3015521]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 10 09:03:02 mail.srvfarm.net postfix/smtpd[3015521]: lost connection after AUTH from unknown[45.95.168.159]
Apr 10 09:03:18 mail.srvfarm.net postfix/smtpd[3019758]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 10 09:03:18 mail.srvfarm.net postfix/smtpd[3019758]: lost connection after AUTH from unknown[45.95.168.159]
Apr 10 09:05:34 mail.srvfarm.net postfix/smtpd[3021769]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Apr  1 21:15:07 mail.srvfarm.net postfix/smtpd[1416476]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr  1 21:15:07 mail.srvfarm.net postfix/smtpd[1416419]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr  1 21:15:07 mail.srvfarm.net postfix/smtpd[1416476]: lost connection after AUTH from unknown[45.95.168.159]
Apr  1 21:15:07 mail.srvfarm.net postfix/smtpd[1416419]: lost connection after AUTH from unknown[45.95.168.159]
Apr  1 21:15:11 mail.srvfarm.net postfix/smtpd[1418111]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

(smtpauth) Failed SMTP AUTH login from 45.95.168.159 (HR/Croatia/maxko-hosting.com): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-04-01 00:26:26 login authenticator failed for (USER) [45.95.168.159]: 535 Incorrect authentication data (set_id=payment@toliddaru.biz)

Mar 31 07:27:42 mail.srvfarm.net postfix/smtpd[403581]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 31 07:27:42 mail.srvfarm.net postfix/smtpd[403581]: lost connection after UNKNOWN from unknown[45.95.168.159]
Mar 31 07:27:53 mail.srvfarm.net postfix/smtpd[406444]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 31 07:27:53 mail.srvfarm.net postfix/smtpd[406444]: lost connection after UNKNOWN from unknown[45.95.168.159]
Mar 31 07:28:55 mail.srvfarm.net postfix/smtpd[425640]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 31 07:28:55 mail.srvfarm.net postfix/smtpd[425640]: lost connection after UNKNOWN from unknown[45.95.168.159]

Mar 29 19:25:02 mail.srvfarm.net postfix/smtpd[1053644]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 29 19:25:02 mail.srvfarm.net postfix/smtpd[1053644]: lost connection after AUTH from unknown[45.95.168.159]
Mar 29 19:28:59 mail.srvfarm.net postfix/smtpd[1037798]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 29 19:28:59 mail.srvfarm.net postfix/smtpd[1037798]: lost connection after AUTH from unknown[45.95.168.159]
Mar 29 19:29:03 mail.srvfarm.net postfix/smtpd[1050006]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Mar 29 14:39:34 relay postfix/smtpd\[11442\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 29 14:41:31 relay postfix/smtpd\[13060\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 29 14:41:54 relay postfix/smtpd\[13062\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 29 14:42:40 relay postfix/smtpd\[19485\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 29 14:43:49 relay postfix/smtpd\[18410\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Mar 24 17:14:21 mail.srvfarm.net postfix/smtpd[2062963]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 24 17:14:21 mail.srvfarm.net postfix/smtpd[2062963]: lost connection after AUTH from unknown[45.95.168.159]
Mar 24 17:14:25 mail.srvfarm.net postfix/smtpd[2062965]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 24 17:14:25 mail.srvfarm.net postfix/smtpd[2062965]: lost connection after AUTH from unknown[45.95.168.159]
Mar 24 17:17:01 mail.srvfarm.net postfix/smtpd[2062963]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

2020-03-23 15:55:36,890 fail2ban.filter         [1840]: INFO    [plesk-postfix] Found 45.95.168.159 - 2020-03-23 15:55:36
2020-03-23 15:55:36,891 fail2ban.filter         [1840]: INFO    [plesk-postfix] Found 45.95.168.159 - 2020-03-23 15:55:36
2020-03-23 15:55:37,021 fail2ban.filter         [1840]: INFO    [plesk-postfix] Found 45.95.168.159 - 2020-03-23 15:55:37
2020-03-23 15:55:37,023 fail2ban.filter         [1840]: INFO    [plesk-postfix] Found 45.95.168.159 - 2020-03-23 15:55:37
2020-03-23 15:55:37,028 fail2ban.filter         [1840]: INFO    [plesk-postfix] Found 45.95.168.159 - 2020-03-23 15:55:37
2020-03-23 15:55:37,030 fail2ban.filter         [1840]: INFO    [plesk-postfix] Found 45.95.168.159 - 2020-03-23 15:55:37
2020-03-23 15:55:37,103 fail2ban.filter         [1840]: INFO    [plesk-postfix] Found 45.95.168.159 - 2020-03-23 15:55:37
2020-03-23 15:55:37,105 fail2ban.filter         [1840]: INFO    [plesk-postfix] Found 45.95.168.159 - 2020-03-23 15:55:37
2020-03-........
-------------------------------

Mar 20 11:15:00 mail.srvfarm.net postfix/smtpd[2707645]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 20 11:15:00 mail.srvfarm.net postfix/smtpd[2707645]: lost connection after AUTH from unknown[45.95.168.159]
Mar 20 11:19:44 mail.srvfarm.net postfix/smtpd[2721549]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar 20 11:19:44 mail.srvfarm.net postfix/smtpd[2721549]: lost connection after AUTH from unknown[45.95.168.159]
Mar 20 11:23:00 mail.srvfarm.net postfix/smtpd[2721529]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Rude login attack (2 tries in 1d)

Rude login attack (4 tries in 1d)

SMTP/25 AUTH

Mar  7 18:11:03 srv01 postfix/smtpd\[12621\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar  7 18:11:03 srv01 postfix/smtpd\[12623\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar  7 18:11:03 srv01 postfix/smtpd\[12624\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar  7 18:11:03 srv01 postfix/smtpd\[12622\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar  7 18:11:03 srv01 postfix/smtpd\[12626\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Mar  7 18:11:03 srv01 postfix/smtpd\[12625\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Unauthorized connection attempt from IP address 45.95.168.159 on Port 25(SMTP)

Feb 26 22:31:10 mail postfix/smtpd\[31531\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 26 22:32:35 mail postfix/smtpd\[31531\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 26 22:43:42 mail postfix/smtpd\[31850\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 26 23:21:07 mail postfix/smtpd\[32450\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\

Feb 26 07:20:30 web01.agentur-b-2.de postfix/smtpd[73603]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb 26 07:21:33 web01.agentur-b-2.de postfix/smtpd[79386]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb 26 07:21:59 web01.agentur-b-2.de postfix/smtpd[79386]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

Feb 19 00:19:02 mail postfix/smtpd\[13304\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 19 00:20:33 mail postfix/smtpd\[13320\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 19 00:58:11 mail postfix/smtpd\[13783\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 19 00:59:41 mail postfix/smtpd\[13783\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\

Feb  7 18:37:58 mail postfix/smtpd[7274]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb  7 18:43:26 mail postfix/smtpd[7451]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Feb  7 18:46:28 mail postfix/smtpd[8324]: warning: unknown[45.95.168.159]: SASL LOGIN authentication failed: UGFzc3dvcmQ6

2020-10-13T16:39:37.029405news0 sshd[21911]: User root from slot0.fitrellc.com not allowed because not listed in AllowUsers
2020-10-13T16:39:39.295180news0 sshd[21911]: Failed password for invalid user root from 45.95.168.141 port 36136 ssh2
2020-10-13T16:39:39.739886news0 sshd[21913]: Invalid user admin from 45.95.168.141 port 42028
...

" "

2020-10-12T01:59:00.670899correo.[domain] sshd[41096]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=slot0.fitrellc.com 2020-10-12T01:59:00.663236correo.[domain] sshd[41096]: Invalid user admin from 45.95.168.141 port 60254 2020-10-12T01:59:02.439731correo.[domain] sshd[41096]: Failed password for invalid user admin from 45.95.168.141 port 60254 ssh2 ...

Auto Fail2Ban report, multiple SSH login attempts.

 TCP (SYN) 45.95.168.141:58036 -> port 22, len 44

Oct  8 16:47:13 santamaria sshd\[31114\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.95.168.202  user=root
Oct  8 16:47:15 santamaria sshd\[31114\]: Failed password for root from 45.95.168.202 port 34650 ssh2
Oct  8 16:54:10 santamaria sshd\[31156\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.95.168.202  user=root
...

(sshd) Failed SSH login from 45.95.168.141 (HR/Croatia/slot0.fitrellc.com): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct  8 12:38:32 optimus sshd[8636]: Failed password for root from 45.95.168.141 port 45624 ssh2
Oct  8 12:38:33 optimus sshd[8707]: Invalid user admin from 45.95.168.141
Oct  8 12:38:35 optimus sshd[8707]: Failed password for invalid user admin from 45.95.168.141 port 52996 ssh2
Oct  8 12:38:36 optimus sshd[8727]: Invalid user admin from 45.95.168.141
Oct  8 12:38:38 optimus sshd[8727]: Failed password for invalid user admin from 45.95.168.141 port 59578 ssh2

SSH Honeypot -> SSH Bruteforce / Login

[portscan] tcp/22 [SSH]
[scan/connect: 3 time(s)]
in blocklist.de:'listed [*unkn*]'
in sorbs:'listed [*unkn*]'
in BlMailspike:'listed'
*(RWIN=65535)(10080947)

DATE:2020-10-07 10:13:22, IP:45.95.168.137, PORT:telnet Telnet brute force auth on honeypot server (honey-neo-dc)

Oct  7 22:59:32 hosting sshd[8711]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=slot0.fitrellc.com  user=root
Oct  7 22:59:34 hosting sshd[8711]: Failed password for root from 45.95.168.141 port 37332 ssh2
Oct  7 22:59:35 hosting sshd[8714]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=slot0.fitrellc.com  user=admin
Oct  7 22:59:37 hosting sshd[8714]: Failed password for admin from 45.95.168.141 port 42658 ssh2
Oct  7 22:59:37 hosting sshd[8717]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=slot0.fitrellc.com  user=admin
Oct  7 22:59:40 hosting sshd[8717]: Failed password for admin from 45.95.168.141 port 47530 ssh2
...

sshguard

DATE:2020-10-06 22:43:34, IP:45.95.168.137, PORT:telnet Telnet brute force auth on honeypot server (honey-neo-dc)

Failed password for invalid user admin from 45.95.168.141 port 48876 ssh2
Invalid user admin from 45.95.168.141 port 54688
pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=slot0.fitrellc.com
Invalid user admin from 45.95.168.141 port 54688
Failed password for invalid user admin from 45.95.168.141 port 54688 ssh2

 TCP (SYN) 45.95.168.148:37649 -> port 1883, len 44

Triggered by Fail2Ban at Vostok web server

SSH-BruteForce

$f2bV_matches

firewall-block, port(s): 6389/tcp

\[2020-01-01 18:14:48\] SECURITY\[2857\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-01-01T18:14:48.420-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="917909004501148158790013",SessionID="0x7f0fb4a1daa8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.38/54411",ACLName="no_extension_match"
\[2020-01-01 18:15:05\] SECURITY\[2857\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-01-01T18:15:05.036-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="930348134454003",SessionID="0x7f0fb447f838",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.38/56394",ACLName="no_extension_match"
\[2020-01-01 18:15:05\] SECURITY\[2857\] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-01-01T18:15:05.960-0500",Severity="Error",Service="SIP",EventVersion="1",AccountID="1543201148566101002",SessionID="0x7f0fb462f398",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.38/59140",AC

pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.181  user=root
Failed password for root from 222.186.175.181 port 55595 ssh2
Failed password for root from 222.186.175.181 port 55595 ssh2
Failed password for root from 222.186.175.181 port 55595 ssh2
Failed password for root from 222.186.175.181 port 55595 ssh2

$f2bV_matches

Jan  2 00:06:20 legacy sshd[20581]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.51.23.135
Jan  2 00:06:22 legacy sshd[20581]: Failed password for invalid user donatella from 122.51.23.135 port 60740 ssh2
Jan  2 00:09:21 legacy sshd[20751]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.51.23.135
...

Jan  1 23:53:21 vps647732 sshd[20294]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=94.191.76.19
Jan  1 23:53:22 vps647732 sshd[20294]: Failed password for invalid user automon from 94.191.76.19 port 55624 ssh2
...

Invalid user luanda from 23.251.42.20 port 53491
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.251.42.20
Failed password for invalid user luanda from 23.251.42.20 port 53491 ssh2
Invalid user gmt from 23.251.42.20 port 42005
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.251.42.20

Jan  2 07:37:51 bacztwo sshd[5154]: error: PAM: Authentication failure for root from 112.85.42.181
Jan  2 07:37:54 bacztwo sshd[5154]: error: PAM: Authentication failure for root from 112.85.42.181
Jan  2 07:37:58 bacztwo sshd[5154]: error: PAM: Authentication failure for root from 112.85.42.181
Jan  2 07:37:58 bacztwo sshd[5154]: Failed keyboard-interactive/pam for root from 112.85.42.181 port 62023 ssh2
Jan  2 07:37:47 bacztwo sshd[5154]: error: PAM: Authentication failure for root from 112.85.42.181
Jan  2 07:37:51 bacztwo sshd[5154]: error: PAM: Authentication failure for root from 112.85.42.181
Jan  2 07:37:54 bacztwo sshd[5154]: error: PAM: Authentication failure for root from 112.85.42.181
Jan  2 07:37:58 bacztwo sshd[5154]: error: PAM: Authentication failure for root from 112.85.42.181
Jan  2 07:37:58 bacztwo sshd[5154]: Failed keyboard-interactive/pam for root from 112.85.42.181 port 62023 ssh2
Jan  2 07:38:01 bacztwo sshd[5154]: error: PAM: Authentication failure for root fro
...

Jan  1 23:53:13 vserver sshd\[21064\]: Failed password for root from 95.81.118.111 port 42883 ssh2Jan  1 23:53:16 vserver sshd\[21064\]: Failed password for root from 95.81.118.111 port 42883 ssh2Jan  1 23:53:18 vserver sshd\[21064\]: Failed password for root from 95.81.118.111 port 42883 ssh2Jan  1 23:53:21 vserver sshd\[21064\]: Failed password for root from 95.81.118.111 port 42883 ssh2
...

2020-01-01T22:45:15.792426abusebot-3.cloudsearch.cf sshd[16118]: Invalid user admin from 167.86.127.137 port 33510
2020-01-01T22:45:15.798464abusebot-3.cloudsearch.cf sshd[16118]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=vmi274379.contaboserver.net
2020-01-01T22:45:15.792426abusebot-3.cloudsearch.cf sshd[16118]: Invalid user admin from 167.86.127.137 port 33510
2020-01-01T22:45:17.613467abusebot-3.cloudsearch.cf sshd[16118]: Failed password for invalid user admin from 167.86.127.137 port 33510 ssh2
2020-01-01T22:49:24.136032abusebot-3.cloudsearch.cf sshd[16523]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=vmi274379.contaboserver.net  user=root
2020-01-01T22:49:25.800053abusebot-3.cloudsearch.cf sshd[16523]: Failed password for root from 167.86.127.137 port 36984 ssh2
2020-01-01T22:53:31.034450abusebot-3.cloudsearch.cf sshd[16775]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0
...

Jan  1 22:53:40 marvibiene sshd[9952]: Invalid user aristide from 139.199.248.153 port 45042
Jan  1 22:53:40 marvibiene sshd[9952]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.199.248.153
Jan  1 22:53:40 marvibiene sshd[9952]: Invalid user aristide from 139.199.248.153 port 45042
Jan  1 22:53:42 marvibiene sshd[9952]: Failed password for invalid user aristide from 139.199.248.153 port 45042 ssh2
...

(imapd) Failed IMAP login from 96.44.186.50 (US/United States/96.44.186.50.static.quadranet.com): 1 in the last 3600 secs