Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: unknown

Region: unknown

Country: Czechia

Internet Service Provider: Ales Krepela - KREPNET

Hostname: unknown

Organization: unknown

Usage Type: Fixed Line ISP

Comments:
Type Details Datetime
attackbots
SASL PLAIN auth failed: ruser=...
2020-07-17 06:37:07
Comments on same subnet:
IP Type Details Datetime
93.99.4.23 attack
Sep 15 18:40:20 mail.srvfarm.net postfix/smtps/smtpd[2822043]: warning: unknown[93.99.4.23]: SASL PLAIN authentication failed: 
Sep 15 18:40:20 mail.srvfarm.net postfix/smtps/smtpd[2822043]: lost connection after AUTH from unknown[93.99.4.23]
Sep 15 18:40:50 mail.srvfarm.net postfix/smtps/smtpd[2827555]: warning: unknown[93.99.4.23]: SASL PLAIN authentication failed: 
Sep 15 18:40:50 mail.srvfarm.net postfix/smtps/smtpd[2827555]: lost connection after AUTH from unknown[93.99.4.23]
Sep 15 18:48:25 mail.srvfarm.net postfix/smtpd[2827929]: warning: unknown[93.99.4.23]: SASL PLAIN authentication failed:
2020-09-17 02:39:58
93.99.4.23 attack
Sep 15 18:40:20 mail.srvfarm.net postfix/smtps/smtpd[2822043]: warning: unknown[93.99.4.23]: SASL PLAIN authentication failed: 
Sep 15 18:40:20 mail.srvfarm.net postfix/smtps/smtpd[2822043]: lost connection after AUTH from unknown[93.99.4.23]
Sep 15 18:40:50 mail.srvfarm.net postfix/smtps/smtpd[2827555]: warning: unknown[93.99.4.23]: SASL PLAIN authentication failed: 
Sep 15 18:40:50 mail.srvfarm.net postfix/smtps/smtpd[2827555]: lost connection after AUTH from unknown[93.99.4.23]
Sep 15 18:48:25 mail.srvfarm.net postfix/smtpd[2827929]: warning: unknown[93.99.4.23]: SASL PLAIN authentication failed:
2020-09-16 18:58:53
93.99.4.22 attackbotsspam
Aug 27 11:22:42 mail.srvfarm.net postfix/smtps/smtpd[1499868]: warning: unknown[93.99.4.22]: SASL PLAIN authentication failed: 
Aug 27 11:22:42 mail.srvfarm.net postfix/smtps/smtpd[1499868]: lost connection after AUTH from unknown[93.99.4.22]
Aug 27 11:24:17 mail.srvfarm.net postfix/smtps/smtpd[1499867]: warning: unknown[93.99.4.22]: SASL PLAIN authentication failed: 
Aug 27 11:24:17 mail.srvfarm.net postfix/smtps/smtpd[1499867]: lost connection after AUTH from unknown[93.99.4.22]
Aug 27 11:30:04 mail.srvfarm.net postfix/smtpd[1488223]: warning: unknown[93.99.4.22]: SASL PLAIN authentication failed:
2020-08-28 08:15:55
93.99.4.22 attackspambots
Jul  9 13:50:53 mail.srvfarm.net postfix/smtpd[3819465]: warning: unknown[93.99.4.22]: SASL PLAIN authentication failed: 
Jul  9 13:50:53 mail.srvfarm.net postfix/smtpd[3819465]: lost connection after AUTH from unknown[93.99.4.22]
Jul  9 13:52:25 mail.srvfarm.net postfix/smtpd[3817751]: warning: unknown[93.99.4.22]: SASL PLAIN authentication failed: 
Jul  9 13:52:25 mail.srvfarm.net postfix/smtpd[3817751]: lost connection after AUTH from unknown[93.99.4.22]
Jul  9 13:56:23 mail.srvfarm.net postfix/smtpd[3825207]: warning: unknown[93.99.4.22]: SASL PLAIN authentication failed:
2020-07-10 01:07:15
93.99.4.23 attack
Brute force attempt
2020-05-24 01:29:57
93.99.4.22 attackspambots
(smtpauth) Failed SMTP AUTH login from 93.99.4.22 (CZ/Czechia/-): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: 2020-05-10 08:25:06 plain authenticator failed for ([93.99.4.22]) [93.99.4.22]: 535 Incorrect authentication data (set_id=sale@emad-security.com)
2020-05-10 13:30:16
93.99.49.50 attackspambots
Unauthorized connection attempt detected from IP address 93.99.49.50 to port 23 [J]
2020-01-22 23:34:06
93.99.42.18 attack
Jul 15 08:16:01 rigel postfix/smtpd[31991]: warning: hostname 18pc.vranet.cz does not resolve to address 93.99.42.18
Jul 15 08:16:01 rigel postfix/smtpd[31991]: connect from unknown[93.99.42.18]
Jul 15 08:16:02 rigel postfix/smtpd[31991]: warning: unknown[93.99.42.18]: SASL CRAM-MD5 authentication failed: authentication failure
Jul 15 08:16:02 rigel postfix/smtpd[31991]: warning: unknown[93.99.42.18]: SASL PLAIN authentication failed: authentication failure
Jul 15 08:16:02 rigel postfix/smtpd[31991]: warning: unknown[93.99.42.18]: SASL LOGIN authentication failed: authentication failure
Jul 15 08:16:02 rigel postfix/smtpd[31991]: disconnect from unknown[93.99.42.18]


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=93.99.42.18
2019-07-15 21:04:32
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 93.99.4.38
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 57266
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;93.99.4.38.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020071604 1800 900 604800 86400

;; Query time: 116 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Jul 17 06:37:03 CST 2020
;; MSG SIZE  rcvd: 114
Host info
Host 38.4.99.93.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 38.4.99.93.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
193.112.9.189 attack
$f2bV_matches
2019-10-21 19:27:40
91.74.234.154 attack
Oct 21 07:19:55 MK-Soft-Root2 sshd[18534]: Failed password for root from 91.74.234.154 port 51244 ssh2
...
2019-10-21 19:07:59
119.82.34.34 attackspam
Honeypot attack, port: 23, PTR: PTR record not found
2019-10-21 19:32:22
165.22.191.129 attackbotsspam
[munged]::443 165.22.191.129 - - [21/Oct/2019:12:43:59 +0200] "POST /[munged]: HTTP/1.1" 200 9079 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
[munged]::443 165.22.191.129 - - [21/Oct/2019:12:44:04 +0200] "POST /[munged]: HTTP/1.1" 200 9079 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
[munged]::443 165.22.191.129 - - [21/Oct/2019:12:44:06 +0200] "POST /[munged]: HTTP/1.1" 200 6768 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
[munged]::443 165.22.191.129 - - [21/Oct/2019:12:44:10 +0200] "POST /[munged]: HTTP/1.1" 200 6632 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
[munged]::443 165.22.191.129 - - [21/Oct/2019:12:44:13 +0200] "POST /[munged]: HTTP/1.1" 200 9079 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
[munged]::443 165.22.191.129 - - [21/Oct/2019:12:44:25 +0200] "POST /[munged]: HTTP/1.1" 200 9079 "-" "Mozilla/5.0 (X11
2019-10-21 19:09:35
207.46.13.52 attack
Automatic report - Banned IP Access
2019-10-21 19:05:46
14.142.197.114 attack
Port 1433 Scan
2019-10-21 19:37:56
106.13.58.170 attackbots
fail2ban
2019-10-21 19:39:50
198.108.67.80 attackspam
SSH-bruteforce attempts
2019-10-21 19:44:32
129.28.187.178 attack
Oct 21 12:56:31 vps01 sshd[3899]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.28.187.178
Oct 21 12:56:33 vps01 sshd[3899]: Failed password for invalid user password321 from 129.28.187.178 port 44006 ssh2
2019-10-21 19:40:23
187.73.214.94 attackbotsspam
Automatic report - Port Scan Attack
2019-10-21 19:22:20
188.166.247.82 attack
SSH Brute-Force reported by Fail2Ban
2019-10-21 19:21:52
103.254.120.222 attack
SSH bruteforce (Triggered fail2ban)
2019-10-21 19:20:53
136.228.160.206 attackspambots
2019-10-21T10:28:04.798879shield sshd\[21692\]: Invalid user wangsu from 136.228.160.206 port 49418
2019-10-21T10:28:04.803252shield sshd\[21692\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=136.228.160.206
2019-10-21T10:28:05.973649shield sshd\[21692\]: Failed password for invalid user wangsu from 136.228.160.206 port 49418 ssh2
2019-10-21T10:32:55.075361shield sshd\[22698\]: Invalid user cesar from 136.228.160.206 port 59162
2019-10-21T10:32:55.079627shield sshd\[22698\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=136.228.160.206
2019-10-21 19:34:19
218.78.15.235 attackbots
Oct 21 02:10:04 shadeyouvpn sshd[7537]: Address 218.78.15.235 maps to 235.15.78.218.dial.xw.sh.dynamic.163data.com.cn, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Oct 21 02:10:04 shadeyouvpn sshd[7537]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.78.15.235  user=r.r
Oct 21 02:10:06 shadeyouvpn sshd[7537]: Failed password for r.r from 218.78.15.235 port 43486 ssh2
Oct 21 02:10:06 shadeyouvpn sshd[7537]: Received disconnect from 218.78.15.235: 11: Bye Bye [preauth]
Oct 21 02:19:50 shadeyouvpn sshd[12805]: Address 218.78.15.235 maps to 235.15.78.218.dial.xw.sh.dynamic.163data.com.cn, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Oct 21 02:19:50 shadeyouvpn sshd[12805]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.78.15.235  user=r.r
Oct 21 02:19:52 shadeyouvpn sshd[12805]: Failed password for r.r from 218.78.15.235 port 47026 ss........
-------------------------------
2019-10-21 19:30:54
81.22.45.150 attackbots
10/21/2019-06:55:54.172357 81.22.45.150 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 83
2019-10-21 19:42:47

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