$f2bV_matches

2020-05-0113:47:461jUU8U-0006nU-4C\<=info@whatsup2013.chH=\(localhost\)[117.190.247.8]:42906P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3016id=809f297a715a7078e4e157fb1ce8c2de570cc8@whatsup2013.chT="Requirenewfriend\?"formdp7310974@gmail.combjbraun79@gmail.com2020-05-0113:46:581jUU89-0006mL-CO\<=info@whatsup2013.chH=\(localhost\)[14.162.40.43]:43170P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3045id=0724a9faf1da0f032461d78470b7bdb1822553de@whatsup2013.chT="Areyoureallylonely\?"forthomaswick138@yahoo.comhballard@gmail.com2020-05-0113:48:281jUU9b-0006sF-Ik\<=info@whatsup2013.chH=\(localhost\)[186.226.0.61]:52622P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3140id=803b8dded5fed4dc4045f35fb84c667a92bbca@whatsup2013.chT="Youareasbeautifulasashiningsun"fornuevayork26@icloud.comjeffe9891@gmail.com2020-05-0113:48:201jUU9U-0006qC-5R\<=info@whatsup2013.chH=\(localhost\)[139.190

2020-04-2822:44:171jTX5S-0004LU-TY\<=info@whatsup2013.chH=\(localhost\)[14.231.148.249]:48893P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3148id=00ae184b406b4149d5d066ca2dd9f3eff16874@whatsup2013.chT="Youmakemysoulhot"fordavidsharris1960@gmail.comsahil.mishra1421@gmail.com2020-04-2822:43:501jTX51-0004IE-VW\<=info@whatsup2013.chH=\(localhost\)[14.237.117.104]:52660P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3247id=ae06782b200bde2d0ef006555e8ab39fbc5649b355@whatsup2013.chT="Younodoubtknow\,Ilosthappiness"forfranksv24@gmail.commikesmobilediesel91@gmail.com2020-04-2822:46:241jTX7Y-0004bv-47\<=info@whatsup2013.chH=\(localhost\)[186.226.0.24]:42184P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3134id=2c2cd4d9d2f92cdffc02f4a7ac78416d4ea4517cd7@whatsup2013.chT="You'rehandsome"fordclay3699@gmail.comdrakefarmsjd@gmail.com2020-04-2822:44:261jTX5d-0004Mo-PI\<=info@whatsup2013.chH

2020-04-2814:06:431jTP0X-0005pU-UY\<=info@whatsup2013.chH=\(localhost\)[202.137.142.229]:39576P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3128id=0810a6f5fed5fff76b6ed87493674d510417de@whatsup2013.chT="Ineedtobeloved"forx3g1204@hotmail.ca78ranchero2019@gmail.com2020-04-2814:06:581jTP0s-0005qx-1v\<=info@whatsup2013.chH=\(localhost\)[93.84.207.14]:41179P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3067id=054b37646f44919dbaff491aee29232f1ca1a1ad@whatsup2013.chT="Feelbutterfliesinmybelly"forwaynepelletier@live.cajgosselin24@gmail.com2020-04-2814:05:171jTOzE-0005hW-1P\<=info@whatsup2013.chH=\(localhost\)[221.3.236.94]:42715P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3089id=88f94f1c173c161e8287319d7a8ea4b862d37f@whatsup2013.chT="You'reprettymysterious"forray1954@gmail.comstanmcnulty61@gmail.com2020-04-2814:06:231jTP0G-0005ks-GN\<=info@whatsup2013.chH=\(localhost\)[186.226.

2020-04-2713:53:111jT2Jy-0008HG-0x\<=info@whatsup2013.chH=\(localhost\)[123.21.18.15]:43252P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3157id=ac3d0b8e85ae7b88ab55a3f0fb2f163a19f3122faf@whatsup2013.chT="Flymetowardsthemoon"forbroandfros@gmail.comlukejoshd04@gmail.com2020-04-2713:57:581jT2Oc-0000KV-2m\<=info@whatsup2013.chH=\(localhost\)[123.21.112.113]:33784P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3054id=a8fb4d1e153e141c8085339f788ca6bafcf5a7@whatsup2013.chT="Seekingcontinuousconnection"formaustk@hotmail.combobcamster@gmail.com2020-04-2713:56:351jT2NG-0000DQ-P5\<=info@whatsup2013.chH=\(localhost\)[113.173.92.146]:58414P=esmtpsaX=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256CV=noA=dovecot_login:info@whatsup2013.chS=3071id=2a19affcf7dcf6fe6267d17d9a6e4458b2a47d@whatsup2013.chT="You'regood-looking"forharry032197@gmail.comsabermojtaba9@gmail.com2020-04-2713:56:121jT2Mt-0000BS-5h\<=info@whatsup2013.chH=\(localhost\)[112

Apr 27 05:58:49 *host* postfix/smtps/smtpd\[18223\]: warning: unknown\[186.226.0.230\]: SASL PLAIN authentication failed:

Apr 26 05:56:13 vmd38886 sshd\[10494\]: Invalid user admin from 186.226.0.116 port 44694
Apr 26 05:56:13 vmd38886 sshd\[10494\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.226.0.116
Apr 26 05:56:15 vmd38886 sshd\[10494\]: Failed password for invalid user admin from 186.226.0.116 port 44694 ssh2

failed_logins

Invalid user admin from 186.226.0.106 port 52738

Apr 19 14:00:55 dev sshd\[964\]: Invalid user admin from 186.226.0.190 port 60143
Apr 19 14:00:55 dev sshd\[964\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=186.226.0.190
Apr 19 14:00:58 dev sshd\[964\]: Failed password for invalid user admin from 186.226.0.190 port 60143 ssh2

failed_logins

SMTP brute force
...

Apr  5 22:49:15 mailman postfix/smtpd[23033]: warning: unknown[186.226.0.83]: SASL PLAIN authentication failed: authentication failure

07/29/2020-23:51:51.324142 58.58.51.142 Protocol: 6 ET SCAN Suspicious inbound to MSSQL port 1433

ET CINS Active Threat Intelligence Poor Reputation IP group 80 - port: 22 proto: tcp cat: Misc Attackbytes: 74

Invalid user user03 from 186.38.26.5 port 54730

Jul 30 08:42:24 srv01 postfix/smtpd\[18145\]: warning: unknown\[111.72.197.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 30 08:48:56 srv01 postfix/smtpd\[22727\]: warning: unknown\[111.72.197.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 30 08:59:23 srv01 postfix/smtpd\[22727\]: warning: unknown\[111.72.197.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 30 08:59:37 srv01 postfix/smtpd\[22727\]: warning: unknown\[111.72.197.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Jul 30 08:59:53 srv01 postfix/smtpd\[22727\]: warning: unknown\[111.72.197.61\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

(sshd) Failed SSH login from 222.186.190.14 (CN/China/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jul 30 09:56:57 amsweb01 sshd[4939]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.14  user=root
Jul 30 09:57:00 amsweb01 sshd[4939]: Failed password for root from 222.186.190.14 port 10502 ssh2
Jul 30 09:57:02 amsweb01 sshd[4939]: Failed password for root from 222.186.190.14 port 10502 ssh2
Jul 30 09:57:04 amsweb01 sshd[4939]: Failed password for root from 222.186.190.14 port 10502 ssh2
Jul 30 09:57:06 amsweb01 sshd[5031]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.190.14  user=root

Jul 30 06:58:24 rush sshd[17218]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.53.12.94
Jul 30 06:58:26 rush sshd[17218]: Failed password for invalid user emuser from 120.53.12.94 port 57278 ssh2
Jul 30 07:03:19 rush sshd[17310]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=120.53.12.94
...

Jul 30 00:33:41 dignus sshd[17871]: Failed password for invalid user guangyao from 78.138.188.187 port 45306 ssh2
Jul 30 00:38:10 dignus sshd[18391]: Invalid user zbh from 78.138.188.187 port 58930
Jul 30 00:38:10 dignus sshd[18391]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=78.138.188.187
Jul 30 00:38:13 dignus sshd[18391]: Failed password for invalid user zbh from 78.138.188.187 port 58930 ssh2
Jul 30 00:42:37 dignus sshd[18912]: Invalid user user02 from 78.138.188.187 port 44334
...

Jul 30 06:27:34 haigwepa sshd[24886]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.201.95 
Jul 30 06:27:36 haigwepa sshd[24886]: Failed password for invalid user nanianfq from 106.12.201.95 port 6414 ssh2
...

Jul 30 09:39:59 santamaria sshd\[21647\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.142  user=root
Jul 30 09:40:01 santamaria sshd\[21647\]: Failed password for root from 222.186.173.142 port 60700 ssh2
Jul 30 09:40:04 santamaria sshd\[21647\]: Failed password for root from 222.186.173.142 port 60700 ssh2
...

Brute-force attempt banned

5.63.13.69 - - [30/Jul/2020:08:24:29 +0200] "POST /xmlrpc.php HTTP/2.0" 403 58662 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36"
5.63.13.69 - - [30/Jul/2020:08:24:30 +0200] "POST /xmlrpc.php HTTP/2.0" 403 58521 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36"
...

They took over somehow my domain. I believe they have some buggy DNS servers that allow it do such thing. While they do have my domain for a little while - they are using my company's real email address to send tons of emails to nonexistent email recipients (hotmail, yahoo, google, etc. (public mail providers)). After a little while I get back tons of NDRs in my SMTP gateways and in corresponding user mailbox. Now the tricky part - I have to be on time when NDRs come in my SMTP gateway - because I have to remove them as soon as possible or there will be another loop and I my SMTP gateway will banned to global spam lists (p.s. It is banned now)

k+ssh-bruteforce

2020-07-30T06:51:22.068749abusebot-6.cloudsearch.cf sshd[3753]: Invalid user wfei from 162.223.89.190 port 46428
2020-07-30T06:51:22.075490abusebot-6.cloudsearch.cf sshd[3753]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=162.223.89.190
2020-07-30T06:51:22.068749abusebot-6.cloudsearch.cf sshd[3753]: Invalid user wfei from 162.223.89.190 port 46428
2020-07-30T06:51:24.199997abusebot-6.cloudsearch.cf sshd[3753]: Failed password for invalid user wfei from 162.223.89.190 port 46428 ssh2
2020-07-30T06:58:34.071290abusebot-6.cloudsearch.cf sshd[3812]: Invalid user rhdqn from 162.223.89.190 port 57896
2020-07-30T06:58:34.077900abusebot-6.cloudsearch.cf sshd[3812]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=162.223.89.190
2020-07-30T06:58:34.071290abusebot-6.cloudsearch.cf sshd[3812]: Invalid user rhdqn from 162.223.89.190 port 57896
2020-07-30T06:58:36.508410abusebot-6.cloudsearch.cf sshd[3812]: Failed pas
...

[2020-07-30 03:32:32] NOTICE[1248] chan_sip.c: Registration from '"860"' failed for '212.83.132.45:9522' - Wrong password
[2020-07-30 03:32:32] SECURITY[1275] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-30T03:32:32.846-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="860",SessionID="0x7f2720091b18",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.132.45/9522",Challenge="65acdead",ReceivedChallenge="65acdead",ReceivedHash="47efc2f08bc7e14c721e666a98848432"
[2020-07-30 03:33:36] NOTICE[1248] chan_sip.c: Registration from '"867"' failed for '212.83.132.45:9846' - Wrong password
[2020-07-30 03:33:36] SECURITY[1275] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-30T03:33:36.779-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="867",SessionID="0x7f27200510e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/212.83.132
...