Aug 12 01:10:05 web01 postfix/smtpd[13906]: connect from swum.beautisleeprh.com[217.112.128.127]
Aug 12 01:10:05 web01 policyd-spf[14725]: None; identhostnamey=helo; client-ip=217.112.128.127; helo=swum.inticables.com; envelope-from=x@x
Aug 12 01:10:05 web01 policyd-spf[14725]: Pass; identhostnamey=mailfrom; client-ip=217.112.128.127; helo=swum.inticables.com; envelope-from=x@x
Aug x@x
Aug 12 01:10:05 web01 postfix/smtpd[13906]: disconnect from swum.beautisleeprh.com[217.112.128.127]
Aug 12 01:14:13 web01 postfix/smtpd[13903]: warning: hostname swum.ozkanyildiz.com does not resolve to address 217.112.128.127
Aug 12 01:14:13 web01 postfix/smtpd[13903]: connect from unknown[217.112.128.127]
Aug 12 01:14:13 web01 policyd-spf[14912]: None; identhostnamey=helo; client-ip=217.112.128.127; helo=swum.inticables.com; envelope-from=x@x
Aug 12 01:14:13 web01 policyd-spf[14912]: Pass; identhostnamey=mailfrom; client-ip=217.112.128.127; helo=swum.inticables.com; envelope-from=x@x
Au........
-------------------------------

IP was detected trying to Brute-Force SSH, FTP, Web Apps, Port-Scan or Hacking.

IP was detected trying to Brute-Force SSH, FTP, Web Apps, Port-Scan or Hacking.

Email spam message

Jun 16 05:10:11 mail.srvfarm.net postfix/smtpd[915897]: NOQUEUE: reject: RCPT from unknown[217.112.128.161]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 16 05:10:11 mail.srvfarm.net postfix/smtpd[916001]: NOQUEUE: reject: RCPT from unknown[217.112.128.161]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 16 05:10:11 mail.srvfarm.net postfix/smtpd[916085]: NOQUEUE: reject: RCPT from unknown[217.112.128.161]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 16 05:10:13 mail.srvfarm.net postfix/smtpd[906475]: NOQUEUE: reject: RCPT from unknown[217.112.128.161

Jun 16 05:28:44 mail.srvfarm.net postfix/smtpd[953476]: NOQUEUE: reject: RCPT from unknown[217.112.128.208]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 16 05:29:50 mail.srvfarm.net postfix/smtpd[953484]: NOQUEUE: reject: RCPT from unknown[217.112.128.208]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 16 05:36:33 mail.srvfarm.net postfix/smtpd[953473]: NOQUEUE: reject: RCPT from unknown[217.112.128.208]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 16 05:36:33 mail.srvfarm.net postfix/smtpd[936017]: NOQUEUE: reject: RCPT from unknown[217.112.128.208]: 450 4.1.8 

Jun  5 18:05:24 mail.srvfarm.net postfix/smtpd[3172177]: NOQUEUE: reject: RCPT from unknown[217.112.128.61]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 18:05:24 mail.srvfarm.net postfix/smtpd[3159447]: NOQUEUE: reject: RCPT from unknown[217.112.128.61]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 18:07:13 mail.srvfarm.net postfix/smtpd[3160160]: NOQUEUE: reject: RCPT from unknown[217.112.128.61]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 18:07:13 mail.srvfarm.net postfix/smtpd[3160138]: NOQUEUE: reject: RCPT fr

Jun  4 13:55:50 mail.srvfarm.net postfix/smtpd[2502236]: NOQUEUE: reject: RCPT from unknown[217.112.128.207]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  4 13:56:38 mail.srvfarm.net postfix/smtpd[2502231]: NOQUEUE: reject: RCPT from unknown[217.112.128.207]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  4 13:57:06 mail.srvfarm.net postfix/smtpd[2502231]: NOQUEUE: reject: RCPT from unknown[217.112.128.207]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  4 13:57:31 mail.srvfarm.net postfix/smtpd[2502236]: NOQUEUE: reject: RCPT from unknown[217.112.128.207]: 450 4.1.8 

May  7 19:17:07 server postfix/smtpd[19737]: NOQUEUE: reject: RCPT from kinky.zilanco.com[217.112.128.246]: 554 5.7.1 Service unavailable; Client host [217.112.128.246] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBL461503 / https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=

SpamScore above: 10.0

May  4 13:59:58 mail.srvfarm.net postfix/smtpd[3200928]: NOQUEUE: reject: RCPT from unknown[217.112.128.242]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May  4 14:02:28 mail.srvfarm.net postfix/smtpd[3194833]: NOQUEUE: reject: RCPT from unknown[217.112.128.242]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May  4 14:02:28 mail.srvfarm.net postfix/smtpd[3199545]: NOQUEUE: reject: RCPT from unknown[217.112.128.242]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May  4 14:04:26 mail.srvfarm.net postfix/smtpd[3199545]: NOQUEUE: reject: RCPT fr

Brute force attempt

May  2 05:47:33 mail.srvfarm.net postfix/smtpd[1730651]: NOQUEUE: reject: RCPT from unknown[217.112.128.143]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May  2 05:49:22 mail.srvfarm.net postfix/smtpd[1728026]: NOQUEUE: reject: RCPT from unknown[217.112.128.143]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May  2 05:54:07 mail.srvfarm.net postfix/smtpd[1728026]: NOQUEUE: reject: RCPT from unknown[217.112.128.143]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May  2 05:54:42 mail.srvfarm.net postfix/smtpd[1730698]: NOQUEUE: reject: RCPT from unknown[217.112.128.143]: 450 4.1.8 

Apr 29 22:32:28 web01.agentur-b-2.de postfix/smtpd[1198258]: NOQUEUE: reject: RCPT from unknown[217.112.128.175]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 29 22:32:28 web01.agentur-b-2.de postfix/smtpd[1196196]: NOQUEUE: reject: RCPT from unknown[217.112.128.175]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 29 22:32:28 web01.agentur-b-2.de postfix/smtpd[1200720]: NOQUEUE: reject: RCPT from unknown[217.112.128.175]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 29 22:32:28 web01.agentur-b-2.de postfix/smtpd[1200719]: NOQUEUE: reject: RCPT from unknown[

Apr 27 22:06:27 mail.srvfarm.net postfix/smtpd[579250]: NOQUEUE: reject: RCPT from palliate.kranbery.com[217.112.128.159]: 554 5.7.1 Service unavailable; Client host [217.112.128.159] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBL461503 / https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Apr 27 22:06:32 mail.srvfarm.net postfix/smtpd[578441]: NOQUEUE: reject: RCPT from palliate.kranbery.com[217.112.128.159]: 554 5.7.1 Service unavailable; Client host [217.112.128.159] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBL461503 / https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Apr 27 22:07:00 mail.srvfarm.net postfix/smtpd[583779]: NOQUEUE: reject: RCPT from palliate.kranbery.com[217.112.128.159]: 554 5.7.1 Service unavailable; Client host [217.112.128.

Apr 26 23:36:47 web01.agentur-b-2.de postfix/smtpd[1529141]: NOQUEUE: reject: RCPT from sudden.kranbery.com[217.112.128.183]: 554 5.7.1 Service unavailable; Client host [217.112.128.183] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS / https://www.spamhaus.org/sbl/query/SBL461503; from= to= proto=ESMTP helo=
Apr 26 23:36:47 web01.agentur-b-2.de postfix/smtpd[1530498]: NOQUEUE: reject: RCPT from sudden.kranbery.com[217.112.128.183]: 554 5.7.1 Service unavailable; Client host [217.112.128.183] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS / https://www.spamhaus.org/sbl/query/SBL461503; from= to= proto=ESMTP helo=
Apr 26 23:36:47 web01.agentur-b-2.de postfix/smtpd[1531377]: NOQUEUE: reject: RCPT from sudden.kranbery.com[217.112.128.183]: 554 5.7.1 Service unavailable; Client host [217.112.128.183] blocked us

SASL PLAIN auth failed: ruser=...

Aug 23 00:26:20 srv206 sshd[24555]: Invalid user ama from 165.227.140.123
Aug 23 00:26:20 srv206 sshd[24555]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.227.140.123
Aug 23 00:26:20 srv206 sshd[24555]: Invalid user ama from 165.227.140.123
Aug 23 00:26:22 srv206 sshd[24555]: Failed password for invalid user ama from 165.227.140.123 port 60632 ssh2
...

Aug 22 18:16:21 xtremcommunity sshd\[17382\]: Invalid user sly from 148.70.12.217 port 45250
Aug 22 18:16:21 xtremcommunity sshd\[17382\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=148.70.12.217
Aug 22 18:16:22 xtremcommunity sshd\[17382\]: Failed password for invalid user sly from 148.70.12.217 port 45250 ssh2
Aug 22 18:21:23 xtremcommunity sshd\[17703\]: Invalid user ubuntu from 148.70.12.217 port 34984
Aug 22 18:21:23 xtremcommunity sshd\[17703\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=148.70.12.217
...

Unauthorized connection attempt from IP address 45.178.1.38 on Port 445(SMB)

Aug 23 00:03:01 h2177944 kernel: \[4834982.897906\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=80.82.64.116 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=250 ID=34458 PROTO=TCP SPT=45524 DPT=17370 WINDOW=1024 RES=0x00 SYN URGP=0 
Aug 23 00:04:28 h2177944 kernel: \[4835069.474696\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=80.82.64.116 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=250 ID=20259 PROTO=TCP SPT=45514 DPT=17252 WINDOW=1024 RES=0x00 SYN URGP=0 
Aug 23 00:11:09 h2177944 kernel: \[4835470.663681\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=80.82.64.116 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=250 ID=50954 PROTO=TCP SPT=45563 DPT=17796 WINDOW=1024 RES=0x00 SYN URGP=0 
Aug 23 00:19:27 h2177944 kernel: \[4835969.100490\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=80.82.64.116 DST=85.214.117.9 LEN=40 TOS=0x00 PREC=0x00 TTL=250 ID=60239 PROTO=TCP SPT=45504 DPT=17164 WINDOW=1024 RES=0x00 SYN URGP=0 
Aug 23 00:21:42 h2177944 kernel: \[4836103.207137\] \[UFW BLOCK\] IN=venet0 OUT= MAC= SRC=80.82.64.116 DST=85.214.117.9

Portscan or hack attempt detected by psad/fwsnort

Invalid user ogar from 45.55.42.17 port 43299

port scan and connect, tcp 23 (telnet)

Unauthorized SSH login attempts

Brute force attempt

2019-08-22 20:08:30 unexpected disconnection while reading SMTP command from 254c6dc7.nat.pool.telekom.hu [37.76.109.199]:23456 I=[10.100.18.20]:25 (error: Connection reset by peer)
2019-08-22 20:08:46 unexpected disconnection while reading SMTP command from 254c6dc7.nat.pool.telekom.hu [37.76.109.199]:24496 I=[10.100.18.20]:25 (error: Connection reset by peer)
2019-08-22 21:04:43 unexpected disconnection while reading SMTP command from 254c6dc7.nat.pool.telekom.hu [37.76.109.199]:60901 I=[10.100.18.20]:25 (error: Connection reset by peer)


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=37.76.109.199

SSH Brute Force, server-1 sshd[14881]: Failed password for invalid user n from 5.26.250.185 port 45484 ssh2

Aug 23 00:15:43 nextcloud sshd\[11256\]: Invalid user charles from 138.197.147.233
Aug 23 00:15:43 nextcloud sshd\[11256\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.147.233
Aug 23 00:15:45 nextcloud sshd\[11256\]: Failed password for invalid user charles from 138.197.147.233 port 52980 ssh2
...

Forged login request.

Aug 23 00:21:02 SilenceServices sshd[30057]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=217.182.252.63
Aug 23 00:21:04 SilenceServices sshd[30057]: Failed password for invalid user car from 217.182.252.63 port 42642 ssh2
Aug 23 00:26:00 SilenceServices sshd[1580]: Failed password for root from 217.182.252.63 port 47054 ssh2