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172.71.81.18

Neutral Activity Whitelisted Subnet

Abuse confidence score ?

0% Low Risk

134 reports

31 reporters · latest 1 hour ago

172.71.81.18 is an IP address from within our whitelist belonging to the subnet 172.64.0.0/13, which we identify as "Cloudflare Reverse Proxy".

ISP	Cloudflare, Inc.
Usage Type	Data Center/Web Hosting/Transit
ASN	AS13335
Domain Name	cloudflare.com
Country	🇸🇬 Singapore
City	Singapore

ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

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IP Abuse Reports for 172.71.81.18

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This IP address has been reported a total of 134 times from 31 distinct sources. 172.71.81.18 was first reported on August 26th 2022, and the most recent report was 1 hour ago. In the last 60 days, the top reporter locations were: United States of America with 5 reports; Belgium with 3 reports; Germany with 3 reports. The most common categories in these recent reports were: Web App Attack 11 times; Brute-Force 5 times; Bad Web Bot 4 times; SSH 1 time; Exploited Host 1 time; Other 1 time.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇧🇪 madeit	2026-10-11 10:54:34 (1 hour ago)		Web App Attack
🇩🇪 paissangroup	2026-09-28 06:51:15 (1 week ago)	Multiple WAF Violations	Web App Attack
🇧🇪 madeit	2026-09-28 00:33:41 (1 week ago)		Web App Attack
🇩🇪 abdubhai	2026-09-25 01:27:56 (2 weeks ago)	172.71.81.18 - - [25/Sep/2026:06 ...	Brute-Force
🇩🇪 FeG Deutschland	2026-09-09 07:13:35 (1 month ago)	Looking for CMS/PHP/SQL vulnerablilities/excessive crawling - 124	Exploited Host Web App Attack
🇺🇸 TPI-Abuse	2026-09-09 02:12:21 (1 month ago)	(mod_security) mod_security (id:210492) triggered by 172.71.81.18 (-): 1 in the last 300 secs; Ports ... show more (mod_security) mod_security (id:210492) triggered by 172.71.81.18 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Tue Sep 08 22:12:15.134285 2026] [security2:error] [pid 536:tid 536] [client 172.71.81.18:9776] ModSecurity: Access denied with code 403 (phase 1). Matched phrase "/.env" at REQUEST_URI. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/02_Global_Generic.conf"] [line "117"] [id "210492"] [rev "3"] [severity "CRITICAL"] [tag "CWAF"] [tag "Generic"] [hostname "butlerinc.net"] [uri "/.env.bak"] [unique_id "aqDAfxSYTu2juHhW1QGGbQAAABg"], referer: https://www.google.com/search?q=butlerinc.net show less	Brute-Force Bad Web Bot Web App Attack
🇳🇱 homeshowdomain.nl	2026-09-08 22:03:01 (1 month ago)	Auto-ban: >3000 req/min op 2026-09-08	Web App Attack SSH Hacking
🇺🇸 CBJ	2026-09-08 17:12:02 (1 month ago)	fail2ban: apache-filepath-recon ...	Web App Attack
🇺🇸 TPI-Abuse	2026-08-17 05:52:43 (1 month ago)	(mod_security) mod_security (id:210492) triggered by 172.71.81.18 (-): 1 in the last 300 secs; Ports ... show more (mod_security) mod_security (id:210492) triggered by 172.71.81.18 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Mon Aug 17 01:52:35.775851 2026] [security2:error] [pid 29235:tid 29252] [client 172.71.81.18:11566] ModSecurity: Access denied with code 403 (phase 1). Matched phrase "/.git/" at REQUEST_URI. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/02_Global_Generic.conf"] [line "117"] [id "210492"] [rev "3"] [severity "CRITICAL"] [tag "CWAF"] [tag "Generic"] [hostname "mail.yakagroup.org"] [uri "/.git/HEAD"] [unique_id "aoKho8wEy-CzjmaJwfHdZwAAAAw"] show less	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-08-17 01:15:16 (1 month ago)	(mod_security) mod_security (id:210492) triggered by 172.71.81.18 (-): 1 in the last 300 secs; Ports ... show more (mod_security) mod_security (id:210492) triggered by 172.71.81.18 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sun Aug 16 21:15:10.872665 2026] [security2:error] [pid 22744:tid 22744] [client 172.71.81.18:10358] ModSecurity: Access denied with code 403 (phase 1). Matched phrase "/.git/" at REQUEST_URI. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/02_Global_Generic.conf"] [line "117"] [id "210492"] [rev "3"] [severity "CRITICAL"] [tag "CWAF"] [tag "Generic"] [hostname "mail.cain2012.org"] [uri "/.git/config"] [unique_id "aoJgns55WTYA-7E9QgTrLQAAAA8"] show less	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-08-17 00:00:02 (1 month ago)	(mod_security) mod_security (id:210492) triggered by 172.71.81.18 (-): 1 in the last 300 secs; Ports ... show more (mod_security) mod_security (id:210492) triggered by 172.71.81.18 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sun Aug 16 19:59:53.948673 2026] [security2:error] [pid 15457:tid 15457] [client 172.71.81.18:12911] ModSecurity: Access denied with code 403 (phase 1). Matched phrase "/.git/" at REQUEST_URI. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/02_Global_Generic.conf"] [line "117"] [id "210492"] [rev "3"] [severity "CRITICAL"] [tag "CWAF"] [tag "Generic"] [hostname "jazziiafoundation.org"] [uri "/.git/config"] [unique_id "aoJO-aGfJrwfW0El9Ry4kwAAAA4"] show less	Brute-Force Bad Web Bot Web App Attack
🇧🇪 madeit	2026-08-16 08:26:31 (1 month ago)		Web App Attack
🇺🇸 chrisj	2026-05-04 19:30:39 (5 months ago)	[Mon May 04 19:30:37.744190 2026] [proxy_fcgi:error] [pid 90092:tid 90092] [client 172.71.81.18:1360 ... show more [Mon May 04 19:30:37.744190 2026] [proxy_fcgi:error] [pid 90092:tid 90092] [client 172.71.81.18:13600] AH01071: Got error 'Primary script unknown' [Mon May 04 19:30:38.011541 2026] [proxy_fcgi:error] [pid 90092:tid 90092] [client 172.71.81.18:13600] AH01071: Got error 'Primary script unknown' [Mon May 04 19:30:38.542372 2026] [proxy_fcgi:error] [pid 90092:tid 90092] [client 172.71.81.18:13600] AH01071: Got error 'Primary script unknown' ... show less	Brute-Force
Anonymous	2026-04-01 16:59:46 (6 months ago)	[Wed Apr 01 18:59:36.659637 2026] [authz_core:error] [pid 24171] [client 172.71.81.18:9309] AH01630: ... show more [Wed Apr 01 18:59:36.659637 2026] [authz_core:error] [pid 24171] [client 172.71.81.18:9309] AH01630: client denied by server configuration: /etc/httpd/htdocs [Wed Apr 01 18:59:44.540459 2026] [authz_core:error] [pid 25122] [client 172.71.81.18:11951] AH01630: client denied by server configuration: /etc/httpd/htdocs [Wed Apr 01 18:59:45.525548 2026] [authz_core:error] [pid 25122] [client 172.71.81.18:11951] AH01630: client denied by server configuration: /etc/httpd/htdocs ... show less	Web App Attack
🇮🇩 Burayot	2026-03-30 03:49:20 (6 months ago)	LF_MODSEC: (mod_security) mod_security (id:949110) triggered by 172.71.81.18 (SG/Singapore/-): 1 in ... show more LF_MODSEC: (mod_security) mod_security (id:949110) triggered by 172.71.81.18 (SG/Singapore/-): 1 in the last 3600 secs show less	Web App Attack

Showing 1 to 15 of 134 reports

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