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AbuseIPDB » 172.71.81.52

172.71.81.52 was found in our database!

This IP was reported 97 times. Confidence of Abuse is 0%: ?

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

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

Important Note: 172.71.81.52 is an IP address from within our whitelist belonging to the subnet 172.64.0.0/13, which we identify as: "Cloudflare Reverse Proxy".

Whitelisted netblocks are typically owned by trusted entities, such as Google or Microsoft who may use them for search engine spiders. However, these same entities sometimes also provide cloud servers and mail services which are easily abused. Pay special attention when trusting or distrusting these IPs.

Report 172.71.81.52

Whois 172.71.81.52

IP Abuse Reports for 172.71.81.52:

This IP address has been reported a total of 97 times from 24 distinct sources. 172.71.81.52 was first reported on June 6th 2022, and the most recent report was 1 day ago.

Recent Reports: We have received reports of abusive activity from this IP address within the last week. It is potentially still actively engaged in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇺🇸 mawan	2026-07-25 11:38:44 (1 day ago)	Suspected of having performed illicit activity on LAX server.	Web App Attack
🇺🇸 TPI-Abuse	2026-05-11 04:46:41 (2 months ago)	(mod_security) mod_security (id:210492) triggered by 172.71.81.52 (-): 1 in the last 300 secs; Ports ... show more (mod_security) mod_security (id:210492) triggered by 172.71.81.52 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Mon May 11 00:46:30.652555 2026] [security2:error] [pid 25139:tid 25139] [client 172.71.81.52:11987] 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 "rizkallah.menagri.com"] [uri "/.env.development"] [unique_id "agFfJhB5U_NnixI061VS0QAAAAg"] show less	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-05-08 02:17:07 (2 months ago)	(mod_security) mod_security (id:210492) triggered by 172.71.81.52 (-): 1 in the last 300 secs; Ports ... show more (mod_security) mod_security (id:210492) triggered by 172.71.81.52 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Thu May 07 22:16:59.589873 2026] [security2:error] [pid 4849:tid 4849] [client 172.71.81.52:13558] 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 "autodiscover.afdfurniture.com"] [uri "/.env"] [unique_id "af1Hm_8MfL_x_1jNXB8M7wAAAAo"], referer: https://www.google.com/search?q=autodiscover.afdfurniture.com show less	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-05-07 12:57:48 (2 months ago)	(mod_security) mod_security (id:210492) triggered by 172.71.81.52 (-): 1 in the last 300 secs; Ports ... show more (mod_security) mod_security (id:210492) triggered by 172.71.81.52 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Thu May 07 08:57:41.626803 2026] [security2:error] [pid 17853:tid 17853] [client 172.71.81.52:9649] 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 "www.eileensbakeryandcafe.cathrynn.com"] [uri "/.env"] [unique_id "afyMRXiHWIv91--msbhOnQAAABU"], referer: https://www.google.com/search?q=www.eileensbakeryandcafe.cathrynn.com show less	Brute-Force Bad Web Bot Web App Attack
🇲🇾 Rizzy	2026-04-05 15:56:05 (3 months ago)	Multiple WAF Violations	Brute-Force Web App Attack
Anonymous	2026-04-05 07:10:32 (3 months ago)	[Sun Apr 05 09:10:31.760231 2026] [authz_core:error] [pid 24326] [client 172.71.81.52:9520] AH01630: ... show more [Sun Apr 05 09:10:31.760231 2026] [authz_core:error] [pid 24326] [client 172.71.81.52:9520] AH01630: client denied by server configuration: /etc/httpd/htdocs [Sun Apr 05 09:10:32.008068 2026] [authz_core:error] [pid 24326] [client 172.71.81.52:9520] AH01630: client denied by server configuration: /etc/httpd/htdocs [Sun Apr 05 09:10:32.256651 2026] [authz_core:error] [pid 24326] [client 172.71.81.52:9520] AH01630: client denied by server configuration: /etc/httpd/htdocs ... show less	Web App Attack
🇺🇸 Furry Network Services	2026-04-01 00:06:02 (3 months ago)	Blocked by UFW [8080/tcp] \| SPT: 13119 \| TTL: 48 \| LEN: 60 \| TOS: 0x00 • Reported by: github.com/sef ... show more Blocked by UFW [8080/tcp] \| SPT: 13119 \| TTL: 48 \| LEN: 60 \| TOS: 0x00 • Reported by: github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
🇺🇸 mnsf	2026-04-01 00:05:39 (3 months ago)	Scanning/Probing (22)	Brute-Force Web App Attack
🇩🇪 acadeova	2026-03-10 09:43:33 (4 months ago)	🚨 Recon detected (nft drop) SRC=172.71.81.52 Observed=TCP dpt=80 in=enp0s6 ttl=56 Time=recent(journa ... show more 🚨 Recon detected (nft drop) SRC=172.71.81.52 Observed=TCP dpt=80 in=enp0s6 ttl=56 Time=recent(journalctl: 10 minutes ago) Assessment=Generic scanning / reconnaissance (PORT_SCAN) show less	Port Scan
🇮🇩 hermawan	2025-10-20 22:22:31 (9 months ago)	[Tue Oct 21 05:21:44.838450 2025] [security2:error] [pid 608818:tid 140228223289024] [client 172.71. ... show more [Tue Oct 21 05:21:44.838450 2025] [security2:error] [pid 608818:tid 140228223289024] [client 172.71.81.52:53080] ModSecurity: Access denied with code 403 (phase 1). Matched phrase "CF-RAY" at REQUEST_HEADERS_NAMES:Cf-Ray. [file "/etc/modsecurity/coreruleset-4.16.0/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "375"] [id "440005"] [msg "BAD REQUEST_HEADERS_NAMES - Detected and Blocked"] [data "Matched Data: CF-RAY found within REQUEST_HEADERS_NAMES:Cf-Ray: Cf-Ray request_line = GET /images/Klimatologi/Analisis/04-Analisis-6-Bulanan/musim_hujan/2025-2026/Perbandingan_Prediksi_Awal_Musim_Hujan_Tahun_2025-2026_Terhadap_Normalnya_1991-2020_Zona_Musim_di_Provinsi_Jawa_Timur.jpg HTTP/2.0"] [severity "NOTICE"] [hostname "staklim-malang.info"] [uri "/images/Klimatologi/Analisis/04-Analisis-6-Bulanan/musim_hujan/2025-2026/Perbandingan_Prediksi_Awal_Musim_Hujan_Tahun_2025-2026_Terhadap_Normalnya_1991-2020_Zona_Musim_di_Provinsi_Jawa_Timur.jpg"] [unique_id "aPa1-NQzW5ytKBks_WIRzAADTAI"] [sta ... show less	Hacking Web App Attack
🇵🇱 Niko's Stuff	2025-09-08 21:20:43 (10 months ago)	[1x] Triggered application-multi,language-multi platform-multi,attack-generic \| Score: 7 \| Msg: Inbo ... show more [1x] Triggered application-multi,language-multi platform-multi,attack-generic \| Score: 7 \| Msg: Inbound Anomaly Score Exceeded (Total Score: 7) \| Uri: /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php \| Client: 172.71.81.52 172.71.81.52 \| Hostname: nikostuff.com \| Blocked web application firewall detected attack show less	Brute-Force
Anonymous	2025-09-01 04:25:09 (10 months ago)		Brute-Force Bad Web Bot Web App Attack
Anonymous	2025-08-22 21:16:52 (11 months ago)	wp admin page access attempt ...	Hacking Web App Attack
Anonymous	2025-08-13 15:08:36 (11 months ago)	[Wed Aug 13 17:08:35.331867 2025] [authz_core:error] [pid 6846] [client 172.71.81.52:63154] AH01630: ... show more [Wed Aug 13 17:08:35.331867 2025] [authz_core:error] [pid 6846] [client 172.71.81.52:63154] AH01630: client denied by server configuration: /etc/httpd/htdocs [Wed Aug 13 17:08:35.535285 2025] [authz_core:error] [pid 6846] [client 172.71.81.52:63154] AH01630: client denied by server configuration: /etc/httpd/htdocs [Wed Aug 13 17:08:35.744458 2025] [authz_core:error] [pid 6846] [client 172.71.81.52:63154] AH01630: client denied by server configuration: /etc/httpd/htdocs ... show less	Web App Attack
Anonymous	2025-08-04 10:01:08 (11 months ago)	wp admin page access attempt ...	Hacking Web App Attack

Showing 1 to 15 of 97 reports

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