2020-06-26T12:25:00.919234beta postfix/smtpd[7589]: NOQUEUE: reject: RCPT from unknown[45.137.22.149]: 450 4.7.25 Client host rejected: cannot find your hostname, [45.137.22.149]; from= to= proto=ESMTP helo=
2020-06-26T12:25:00.919432beta postfix/smtpd[7588]: NOQUEUE: reject: RCPT from unknown[45.137.22.149]: 450 4.7.25 Client host rejected: cannot find your hostname, [45.137.22.149]; from= to=<4554a4bd.4090007@rncbc.org> proto=ESMTP helo=
2020-06-26T12:25:00.919517beta postfix/smtpd[7586]: NOQUEUE: reject: RCPT from unknown[45.137.22.149]: 450 4.7.25 Client host rejected: cannot find your hostname, [45.137.22.149]; from= to=<4554d59d.2090404@rncbc.org> proto=ESMTP helo=
...

PHISHING AND SPAM ATTACK
45.137.22.47	UAB LIMORIS - newworld@nwd.com.hk, invoice, 2 Jul 2021
185.222.58.104  khalid Siddiqui - ceo@seafarerpk.com, SHIPPING DOCUMENTS FOR GATE PASS,  3 Jul 2021
person:    	K.M. Badrul Alam
address:   	Naherins Domain, 134/7 B, Furfura Sharif Road, Darus Salam
inetnum:   	45.128.0.0 - 45.159.255.255
		185.222.57.0 - 185.222.57.255
		185.222.58.0 - 185.222.58.255
Other emails from same group are listed below as PHISHING AND SPAM ATTACK as well as; 
45.137.22.37 Engr. Ghazanfar Raza - ghazanfar@sgbmdxb.com - NEW ORDER, 17 May 2021 
45.137.22.37 M. Ahmed Bilwani - editorial@thejakartapost.com - OUTSTANDING PAYMENT REMINDER, 17 May 2021
45.137.22.44 Barbara Liu liuli.hgxs@sinopec.com, Req Invoice, 27 May 2021
185.222.57.140  FUKUSEN (SALES DEPT) - fukusen-ikari@alpha.ocn.ne.jp - RE: Confirmation Order for PO # B18024091/02730918, 4 May 2021 21:38:19
185.222.57.140 Julie shi - shifulan@sinotrans.com - RE: SATEMENT OF ACCOUNT, 5 May 2021
185.222.57.140 Jason Kim - jason@wscorporation.co.kr - Enquiry # A87983T - Fittings and Flanges for LNG project, 30 Apr 2021
185.222.57.140 Jason Kim - jason@wscorporation.co.kr - Enquiry # A87983T - Fittings and Flanges for LNG project, Mon, 26 Apr 2021
185.222.57.140 Jason Kim - jason@wscorporation.co.kr - Enquiry # A87983T - Fittings and Flanges for LNG project, Sun, 25 Apr 2021
185.222.57.140 Magdi Amin - areej@alamalcargo.com - RE: New Order, 6 May 2021
185.222.57.143  Mr. Ahmed Bilwani - daniel.robinson@compelo.com, OUTSTANDING PAYMENT REMINDER, 13 Jun 2021
185.222.57.143  Barbara Liu / 刘莉 - liuli.hgxs"@sinopec.com, Payment confirmation,  13 Jun 2021
185.222.57.143  M. Ahmed Bilwani - jiovieno@marketresearch.com, PAYMENT REMINDER,  18 Jun 2021
185.222.57.143  M. Ahmed Bilwani - jiovieno@marketresearch.com, PAYMENT REMINDER,  19 Jun 2021
185.222.58.104  khalid Siddiqui - ceo@seafarerpk.com, SHIPPING DOCUMENTS FOR GATE PASS,  3 Jul 2021

PHISHING AND SPAM ATTACK
45.137.22.47 Alla Shpedko - mediainquiries@cision.com, Confirmation, 30 Jun 2021
45.137.22.47 Barbara Liu - info@pixelmechanics.com.sg, P O,  30 Jun 2021 
NetRange:       45.128.0.0 - 45.159.255.255
OrgId:          RIPE
Other emails from same group are listed below as PHISHING AND SPAM ATTACK as well as; 
45.137.22.37 Engr. Ghazanfar Raza - ghazanfar@sgbmdxb.com - NEW ORDER, 17 May 2021 
45.137.22.37 M. Ahmed Bilwani - editorial@thejakartapost.com - OUTSTANDING PAYMENT REMINDER, 17 May 2021
45.137.22.44 Barbara Liu liuli.hgxs@sinopec.com, Req Invoice, 27 May 2021
45.137.22.47 Kastriot Buci - Kastriot.Bucii@dahuatech.com, Order, 30 Jun 2021
45.137.22.47 Alla Shpedko - mediainquiries@cision.com, Confirmation, 30 Jun 2021
45.137.22.47 Barbara Liu - info@pixelmechanics.com.sg, P O,  30 Jun 2021

PHISHING AND SPAM ATTACK
45.137.22.47 Kastriot Buci - Kastriot.Bucii@dahuatech.com, Order, 30 Jun 2021 
NetRange:       45.128.0.0 - 45.159.255.255
OrgId:          RIPE
Other emails from same group are listed below as PHISHING AND SPAM ATTACK as well as; 
45.137.22.37 Engr. Ghazanfar Raza - ghazanfar@sgbmdxb.com - NEW ORDER, 17 May 2021 
45.137.22.37 M. Ahmed Bilwani - editorial@thejakartapost.com - OUTSTANDING PAYMENT REMINDER, 17 May 2021
45.137.22.44 Barbara Liu liuli.hgxs@sinopec.com, Req Invoice, 27 May 2021

PHISHING ATTACK
45.137.22.44 Barbara Liu liuli.hgxs@sinopec.com, Req Invoice, 27 May 2021 
NetRange:       45.128.0.0 - 45.159.255.255
OrgId:          RIPE
Other emails from same group are listed below as PHISHING AND SPAM ATTACK as well as; 
45.137.22.37 Engr. Ghazanfar Raza - ghazanfar@sgbmdxb.com - NEW ORDER, 17 May 2021 
45.137.22.37 M. Ahmed Bilwani - editorial@thejakartapost.com - OUTSTANDING PAYMENT REMINDER, 17 May 2021
45.137.22.44 Barbara Liu liuli.hgxs@sinopec.com, Req Invoice, 27 May 2021

45.137.22.37 M. Ahmed Bilwani - editorial@thejakartapost.com - OUTSTANDING PAYMENT REMINDER, 17 May 2021
NetRange:       45.128.0.0 - 45.159.255.255
OrgId:          RIPE
Other emails from same group are listed below as PHISHING AND SPAM ATTACK
45.137.22.37 Engr. Ghazanfar Raza - ghazanfar@sgbmdxb.com - NEW ORDER, 17 May 2021 
45.137.22.37 M. Ahmed Bilwani - editorial@thejakartapost.com - OUTSTANDING PAYMENT REMINDER, 17 May 2021

45.137.22.37 Engr. Ghazanfar Raza - ghazanfar@sgbmdxb.com - NEW ORDER, 17 May 2021 
NetRange:       45.128.0.0 - 45.159.255.255
OrgId:          RIPE
Other emails from same group are listed below as PHISHING AND SPAM ATTACK

PHISHING AND SPAM ATTACK
FROM "Grace 曹向慧 - wh.dzxs02@xinyiglass.com -" : 
SUBJECT "XYG FINANCIAL REQUIREMENT--- LC" :
RECEIVED "from [45.137.22.138] (port=58343 helo=xinyiglass.com)" :
DATE/TIMESENT "Fri, 30 Apr 2021 17:28:39 "
IP ADDRESS "inetnum:45.128.0.0 - 45.159.255.255 org-name:RootLayer Web Services Ltd."

PHISHING AND SPAM ATTACK
FROM "Cherry - zamy0001@126.com -" : 
SUBJECT "Marine Open Policy No. MP/O/10/000116/11/2020/DT, CMIC Chloride - 6000 Kgs. against L/C No. LC/99/082/3087" :
RECEIVED "from [45.137.22.138] (port=55954 helo=126.com) (envelope-from ) id 1lR9XR-004z74-Kj " :
DATE/TIMESENT "Tue, 30 Mar 2021 19:15:51"
IP ADDRESS "inetnum:45.128.0.0 - 45.159.255.255 Organization: RIPE Network Coordination Centre (RIPE)"

Subject: 答复: 答复: Revised Invoice
Date: 21 Sep 2020 11:25:‪27 -0700‬
Message ID: <20200921112527.158DBCFBB65E469C@transwellogistic.com>
Virus/Unauthorized code: >>> Possible MalWare 'AVE/Heur.AdvML.B!200' found in '‪25511069‬_3X_AR_PA2__INVOICE.exe'.

Subject: 答复: 答复: Revised Invoice
Date: 21 Sep 2020 11:25:‪27 -0700‬
Message ID: <20200921112527.158DBCFBB65E469C@transwellogistic.com>
Virus/Unauthorized code: >>> Possible MalWare 'AVE/Heur.AdvML.B!200' found in '‪25511069‬_3X_AR_PA2__INVOICE.exe'.

Subject: 答复: 答复: Revised Invoice
Date: 21 Sep 2020 11:25:‪27 -0700‬
Message ID: <20200921112527.158DBCFBB65E469C@transwellogistic.com>
Virus/Unauthorized code: >>> Possible MalWare 'AVE/Heur.AdvML.B!200' found in '‪25511069‬_3X_AR_PA2__INVOICE.exe'.

SMTP AUTH

Sep 15 18:59:01 server postfix/smtpd[12697]: NOQUEUE: reject: RCPT from unknown[45.137.22.108]: 554 5.7.1 Service unavailable; Client host [45.137.22.108] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?45.137.22.108; from= to= proto=ESMTP helo=

Sep 15 18:59:01 server postfix/smtpd[12697]: NOQUEUE: reject: RCPT from unknown[45.137.22.108]: 554 5.7.1 Service unavailable; Client host [45.137.22.108] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?45.137.22.108; from= to= proto=ESMTP helo=

45.137.229.5 - - [29/Aug/2020:05:42:12 +0200] "POST /xmlrpc.php HTTP/1.1" 403 461 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
45.137.229.5 - - [29/Aug/2020:05:59:54 +0200] "POST /xmlrpc.php HTTP/1.1" 403 10784 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...

SSH Brute-force

SSH Invalid Login

Sep  4 01:34:37 galaxy event: galaxy/lswi: smtp: emo@uni-potsdam.de [212.70.149.20] authentication failure using internet password
Sep  4 01:35:03 galaxy event: galaxy/lswi: smtp: eli@uni-potsdam.de [212.70.149.20] authentication failure using internet password
Sep  4 01:35:28 galaxy event: galaxy/lswi: smtp: elektro@uni-potsdam.de [212.70.149.20] authentication failure using internet password
Sep  4 01:35:54 galaxy event: galaxy/lswi: smtp: ekonomi@uni-potsdam.de [212.70.149.20] authentication failure using internet password
Sep  4 01:36:20 galaxy event: galaxy/lswi: smtp: ego@uni-potsdam.de [212.70.149.20] authentication failure using internet password
...

Sep  3 18:47:55 mellenthin postfix/smtpd[20177]: NOQUEUE: reject: RCPT from 177-200-68-157.dynamic.skysever.com.br[177.200.68.157]: 554 5.7.1 Service unavailable; Client host [177.200.68.157] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/177.200.68.157; from= to= proto=ESMTP helo=<177-200-68-157.dynamic.skysever.com.br>

Wordpress attack

Sep  4 00:51:24 ns381471 sshd[14656]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.178.86.97
Sep  4 00:51:26 ns381471 sshd[14656]: Failed password for invalid user solange from 51.178.86.97 port 34760 ssh2

Invalid user ali from 113.250.255.232 port 5527

Lines containing failures of 209.45.91.26 (max 1000)
Sep  2 10:22:39 mxbb sshd[12671]: Invalid user marcio from 209.45.91.26 port 34568
Sep  2 10:22:40 mxbb sshd[12671]: Failed password for invalid user marcio from 209.45.91.26 port 34568 ssh2
Sep  2 10:22:41 mxbb sshd[12671]: Received disconnect from 209.45.91.26 port 34568:11: Bye Bye [preauth]
Sep  2 10:22:41 mxbb sshd[12671]: Disconnected from 209.45.91.26 port 34568 [preauth]
Sep  2 10:29:01 mxbb sshd[12751]: Failed password for r.r from 209.45.91.26 port 48534 ssh2
Sep  2 10:29:01 mxbb sshd[12751]: Received disconnect from 209.45.91.26 port 48534:11: Bye Bye [preauth]
Sep  2 10:29:01 mxbb sshd[12751]: Disconnected from 209.45.91.26 port 48534 [preauth]
Sep  2 10:31:25 mxbb sshd[12819]: Failed password for ftp from 209.45.91.26 port 19562 ssh2
Sep  2 10:31:25 mxbb sshd[12819]: Received disconnect from 209.45.91.26 port 19562:11: Bye Bye [preauth]
Sep  2 10:31:25 mxbb sshd[12819]: Disconnected from 209.45.91.26 port ........
------------------------------

Dovecot Invalid User Login Attempt.

$f2bV_matches

Port scan: Attack repeated for 24 hours

2020-09-03 17:21:43.427448-0500  localhost smtpd[43960]: NOQUEUE: reject: RCPT from unknown[51.89.14.136]: 450 4.7.25 Client host rejected: cannot find your hostname, [51.89.14.136]; from= to= proto=ESMTP helo=

2020-09-03 11:41:08.585863-0500  localhost smtpd[17531]: NOQUEUE: reject: RCPT from unknown[116.103.168.253]: 554 5.7.1 Service unavailable; Client host [116.103.168.253] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS / https://www.spamhaus.org/query/ip/116.103.168.253; from= to= proto=ESMTP helo=<[116.103.168.253]>

Sep  3 19:56:17 Ubuntu-1404-trusty-64-minimal sshd\[29743\]: Invalid user admin from 23.129.64.216
Sep  3 19:56:17 Ubuntu-1404-trusty-64-minimal sshd\[29743\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.216
Sep  3 19:56:19 Ubuntu-1404-trusty-64-minimal sshd\[29743\]: Failed password for invalid user admin from 23.129.64.216 port 17529 ssh2
Sep  3 19:56:22 Ubuntu-1404-trusty-64-minimal sshd\[29774\]: Invalid user admin from 23.129.64.216
Sep  3 19:56:22 Ubuntu-1404-trusty-64-minimal sshd\[29774\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=23.129.64.216

port scan and connect, tcp 23 (telnet)