SSH invalid-user multiple login try

Brute force attempt

Brute force attempt

Aug 11 13:59:22 mail.srvfarm.net postfix/smtpd[2367395]: warning: unknown[186.216.71.122]: SASL PLAIN authentication failed: 
Aug 11 13:59:22 mail.srvfarm.net postfix/smtpd[2367395]: lost connection after AUTH from unknown[186.216.71.122]
Aug 11 13:59:40 mail.srvfarm.net postfix/smtps/smtpd[2367011]: warning: unknown[186.216.71.122]: SASL PLAIN authentication failed: 
Aug 11 13:59:41 mail.srvfarm.net postfix/smtps/smtpd[2367011]: lost connection after AUTH from unknown[186.216.71.122]
Aug 11 14:03:18 mail.srvfarm.net postfix/smtps/smtpd[2364251]: warning: unknown[186.216.71.122]: SASL PLAIN authentication failed:

(smtpauth) Failed SMTP AUTH login from 186.216.71.64 (BR/Brazil/186-216-71-64.uni-wr.mastercabo.com.br): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-08-02 08:23:00 plain authenticator failed for ([186.216.71.64]) [186.216.71.64]: 535 Incorrect authentication data (set_id=info@mobarezco.com)

failed_logins

SSH invalid-user multiple login try

Jul 10 14:16:58 xeon postfix/smtpd[8972]: warning: unknown[186.216.71.126]: SASL PLAIN authentication failed: authentication failure

SSH invalid-user multiple login try

Jun 25 22:32:51 mail.srvfarm.net postfix/smtps/smtpd[2075110]: warning: unknown[186.216.71.217]: SASL PLAIN authentication failed: 
Jun 25 22:32:52 mail.srvfarm.net postfix/smtps/smtpd[2075110]: lost connection after AUTH from unknown[186.216.71.217]
Jun 25 22:37:53 mail.srvfarm.net postfix/smtpd[2075974]: warning: unknown[186.216.71.217]: SASL PLAIN authentication failed: 
Jun 25 22:37:53 mail.srvfarm.net postfix/smtpd[2075974]: lost connection after AUTH from unknown[186.216.71.217]
Jun 25 22:40:20 mail.srvfarm.net postfix/smtpd[2071449]: warning: unknown[186.216.71.217]: SASL PLAIN authentication failed:

Jun 18 13:34:24 mail.srvfarm.net postfix/smtps/smtpd[1466889]: warning: unknown[186.216.71.30]: SASL PLAIN authentication failed: 
Jun 18 13:34:25 mail.srvfarm.net postfix/smtps/smtpd[1466889]: lost connection after AUTH from unknown[186.216.71.30]
Jun 18 13:41:26 mail.srvfarm.net postfix/smtpd[1469105]: warning: unknown[186.216.71.30]: SASL PLAIN authentication failed: 
Jun 18 13:41:26 mail.srvfarm.net postfix/smtpd[1469105]: lost connection after AUTH from unknown[186.216.71.30]
Jun 18 13:43:22 mail.srvfarm.net postfix/smtps/smtpd[1471061]: warning: unknown[186.216.71.30]: SASL PLAIN authentication failed:

Jun 18 13:30:06 mail.srvfarm.net postfix/smtps/smtpd[1465073]: warning: unknown[186.216.71.242]: SASL PLAIN authentication failed: 
Jun 18 13:30:06 mail.srvfarm.net postfix/smtps/smtpd[1465073]: lost connection after AUTH from unknown[186.216.71.242]
Jun 18 13:33:57 mail.srvfarm.net postfix/smtps/smtpd[1469500]: warning: unknown[186.216.71.242]: SASL PLAIN authentication failed: 
Jun 18 13:33:58 mail.srvfarm.net postfix/smtps/smtpd[1469500]: lost connection after AUTH from unknown[186.216.71.242]
Jun 18 13:36:58 mail.srvfarm.net postfix/smtps/smtpd[1467936]: warning: unknown[186.216.71.242]: SASL PLAIN authentication failed:

Jun  8 05:31:58 mail.srvfarm.net postfix/smtpd[671307]: warning: unknown[186.216.71.57]: SASL PLAIN authentication failed: 
Jun  8 05:31:59 mail.srvfarm.net postfix/smtpd[671307]: lost connection after AUTH from unknown[186.216.71.57]
Jun  8 05:34:39 mail.srvfarm.net postfix/smtpd[673035]: warning: unknown[186.216.71.57]: SASL PLAIN authentication failed: 
Jun  8 05:34:40 mail.srvfarm.net postfix/smtpd[673035]: lost connection after AUTH from unknown[186.216.71.57]
Jun  8 05:35:01 mail.srvfarm.net postfix/smtps/smtpd[671665]: warning: unknown[186.216.71.57]: SASL PLAIN authentication failed:

Jun  8 05:30:53 mail.srvfarm.net postfix/smtpd[673035]: warning: unknown[186.216.71.107]: SASL PLAIN authentication failed: 
Jun  8 05:30:53 mail.srvfarm.net postfix/smtpd[673035]: lost connection after AUTH from unknown[186.216.71.107]
Jun  8 05:39:04 mail.srvfarm.net postfix/smtps/smtpd[671665]: lost connection after CONNECT from unknown[186.216.71.107]
Jun  8 05:39:57 mail.srvfarm.net postfix/smtpd[673035]: warning: unknown[186.216.71.107]: SASL PLAIN authentication failed: 
Jun  8 05:39:58 mail.srvfarm.net postfix/smtpd[673035]: lost connection after AUTH from unknown[186.216.71.107]

Jun  5 15:19:31 mail.srvfarm.net postfix/smtps/smtpd[3110631]: warning: unknown[186.216.71.26]: SASL PLAIN authentication failed: 
Jun  5 15:19:32 mail.srvfarm.net postfix/smtps/smtpd[3110631]: lost connection after AUTH from unknown[186.216.71.26]
Jun  5 15:25:25 mail.srvfarm.net postfix/smtps/smtpd[3108732]: warning: unknown[186.216.71.26]: SASL PLAIN authentication failed: 
Jun  5 15:25:25 mail.srvfarm.net postfix/smtps/smtpd[3108732]: lost connection after AUTH from unknown[186.216.71.26]
Jun  5 15:29:14 mail.srvfarm.net postfix/smtpd[3109485]: warning: unknown[186.216.71.26]: SASL PLAIN authentication failed:

Jun  5 14:48:38 mail.srvfarm.net postfix/smtpd[3095007]: warning: unknown[186.216.71.50]: SASL PLAIN authentication failed: 
Jun  5 14:48:38 mail.srvfarm.net postfix/smtpd[3095007]: lost connection after AUTH from unknown[186.216.71.50]
Jun  5 14:55:01 mail.srvfarm.net postfix/smtps/smtpd[3094396]: warning: unknown[186.216.71.50]: SASL PLAIN authentication failed: 
Jun  5 14:55:01 mail.srvfarm.net postfix/smtps/smtpd[3094396]: lost connection after AUTH from unknown[186.216.71.50]
Jun  5 14:57:10 mail.srvfarm.net postfix/smtpd[3093305]: warning: unknown[186.216.71.50]: SASL PLAIN authentication failed:

Apr 29 14:51:13 debian-2gb-nbg1-2 kernel: \[10423595.520488\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=45.82.70.238 DST=195.201.40.59 LEN=40 TOS=0x00 PREC=0x00 TTL=245 ID=62217 PROTO=TCP SPT=40160 DPT=5335 WINDOW=1024 RES=0x00 SYN URGP=0

Apr 29 17:54:45 gw1 sshd[12541]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=163.178.170.13
Apr 29 17:54:47 gw1 sshd[12541]: Failed password for invalid user krzysiek from 163.178.170.13 port 33174 ssh2
...

[WedApr2914:03:28.4878482020][:error][pid15278:tid47644235847424][client5.83.163.84:53314][client5.83.163.84]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"python-requests/"atREQUEST_HEADERS:User-Agent.[file"/etc/apache2/conf.d/modsec_rules/20_asl_useragents.conf"][line"218"][id"332039"][rev"4"][msg"Atomicorp.comWAFRules:SuspiciousUnusualUserAgent\(python-requests\).Disablethisruleifyouusepython-requests/."][severity"CRITICAL"][hostname"prova.gmpsud.ch"][uri"/robots.txt"][unique_id"XqltEM4k-4wuPNnf@VX-2QAAAVQ"][WedApr2914:03:42.8959992020][:error][pid15255:tid47644229543680][client5.83.163.84:54686][client5.83.163.84]ModSecurity:Accessdeniedwithcode403\(phase2\).Patternmatch"python-requests/"atREQUEST_HEADERS:User-Agent.[file"/etc/apache2/conf.d/modsec_rules/20_asl_useragents.conf"][line"218"][id"332039"][rev"4"][msg"Atomicorp.comWAFRules:SuspiciousUnusualUserAgent\(python-requests\).Disablethisruleifyouusepython-requests/."][severity"CRITICAL"][hostname"prova.gm

Automatic report - Port Scan Attack

Apr 29 14:23:08 relay postfix/smtpd\[14991\]: warning: unknown\[185.143.74.49\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 29 14:23:57 relay postfix/smtpd\[7436\]: warning: unknown\[185.143.74.49\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 29 14:24:14 relay postfix/smtpd\[14987\]: warning: unknown\[185.143.74.49\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 29 14:25:09 relay postfix/smtpd\[7436\]: warning: unknown\[185.143.74.49\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 29 14:25:23 relay postfix/smtpd\[12722\]: warning: unknown\[185.143.74.49\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...

Apr 29 14:56:58 inter-technics sshd[13098]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.142  user=root
Apr 29 14:57:00 inter-technics sshd[13098]: Failed password for root from 222.186.180.142 port 25780 ssh2
Apr 29 14:57:03 inter-technics sshd[13098]: Failed password for root from 222.186.180.142 port 25780 ssh2
Apr 29 14:56:58 inter-technics sshd[13098]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.142  user=root
Apr 29 14:57:00 inter-technics sshd[13098]: Failed password for root from 222.186.180.142 port 25780 ssh2
Apr 29 14:57:03 inter-technics sshd[13098]: Failed password for root from 222.186.180.142 port 25780 ssh2
Apr 29 14:56:58 inter-technics sshd[13098]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.142  user=root
Apr 29 14:57:00 inter-technics sshd[13098]: Failed password for root from 222.186.180.142 port 2578
...

Apr 29 13:40:31 web01.agentur-b-2.de postfix/smtpd[1077562]: NOQUEUE: reject: RCPT from unknown[185.89.0.22]: 554 5.7.1 Service unavailable; Client host [185.89.0.22] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/185.89.0.22 / https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Apr 29 13:40:33 web01.agentur-b-2.de postfix/smtpd[1077562]: NOQUEUE: reject: RCPT from unknown[185.89.0.22]: 554 5.7.1 Service unavailable; Client host [185.89.0.22] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip/185.89.0.22 / https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Apr 29 13:40:33 web01.agentur-b-2.de postfix/smtpd[1077562]: NOQUEUE: reject: RCPT from unknown[185.89.0.22]: 554 5.7.1 Service unavailable; Client host [185.89.0.22] blocked using zen.spamhaus.org; https://www.spamhaus.org/query/ip

Too many 404s, searching for vulnerabilities

" "

Exim brute force attack (multiple auth failures).

Apr 29 12:07:23 olgosrv01 sshd[15671]: Invalid user acs from 149.129.50.30
Apr 29 12:07:23 olgosrv01 sshd[15671]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=149.129.50.30 
Apr 29 12:07:25 olgosrv01 sshd[15671]: Failed password for invalid user acs from 149.129.50.30 port 53396 ssh2
Apr 29 12:07:25 olgosrv01 sshd[15671]: Received disconnect from 149.129.50.30: 11: Bye Bye [preauth]
Apr 29 12:11:55 olgosrv01 sshd[16103]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=149.129.50.30  user=r.r
Apr 29 12:11:57 olgosrv01 sshd[16103]: Failed password for r.r from 149.129.50.30 port 53352 ssh2
Apr 29 12:11:57 olgosrv01 sshd[16103]: Received disconnect from 149.129.50.30: 11: Bye Bye [preauth]
Apr 29 12:14:50 olgosrv01 sshd[16291]: Invalid user srvadmin from 149.129.50.30
Apr 29 12:14:50 olgosrv01 sshd[16291]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhos........
-------------------------------

Automatic report - Port Scan Attack

Apr 29 13:51:44 web01.agentur-b-2.de postfix/smtpd[1090336]: NOQUEUE: reject: RCPT from unknown[43.248.73.122]: 450 4.7.1 <36films.com>: Helo command rejected: Host not found; from= to= proto=ESMTP helo=<36films.com>
Apr 29 13:51:45 web01.agentur-b-2.de postfix/smtpd[1090336]: NOQUEUE: reject: RCPT from unknown[43.248.73.122]: 450 4.7.1 <36films.com>: Helo command rejected: Host not found; from= to= proto=ESMTP helo=<36films.com>
Apr 29 13:51:46 web01.agentur-b-2.de postfix/smtpd[1090336]: NOQUEUE: reject: RCPT from unknown[43.248.73.122]: 450 4.7.1 <36films.com>: Helo command rejected: Host not found; from= to= proto=ESMTP helo=<36films.com>
Apr 29 13:51:47 web01.agentur-b-2.de postfix/smtpd[1090336]: NOQUEUE: reject: RCPT from unknown[43.248.73.122]: 450 4.7.1 <36films.com>: Helo command rejected: Host not found; from= to= proto=ESM

Apr 29 15:03:43 santamaria sshd\[6003\]: Invalid user elasticsearch from 51.15.19.174
Apr 29 15:03:43 santamaria sshd\[6003\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.15.19.174
Apr 29 15:03:45 santamaria sshd\[6003\]: Failed password for invalid user elasticsearch from 51.15.19.174 port 46296 ssh2
...

Apr 29 14:05:53 sso sshd[6826]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.47.238.207
Apr 29 14:05:55 sso sshd[6826]: Failed password for invalid user robot from 212.47.238.207 port 39924 ssh2
...