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104.23.239.21

Neutral Activity Whitelisted Subnet

Abuse confidence score ?

0% Low Risk

150 reports

51 reporters · latest 2 hours ago

104.23.239.21 is an IP address from within our whitelist belonging to the subnet 104.16.0.0/13, which we identify as "Cloudflare Reverse Proxy".

ISP	Cloudflare, Inc.
Usage Type	Data Center/Web Hosting/Transit
ASN	AS13335
Domain Name	cloudflare.com
Country	🇩🇪 Germany
City	Frankfurt am Main, Hesse

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

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IP Abuse Reports for 104.23.239.21

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This IP address has been reported a total of 150 times from 51 distinct sources. 104.23.239.21 was first reported on July 10th 2025, and the most recent report was 2 hours ago. In the last 60 days, the top reporter locations were: United States of America with 11 reports; Germany with 3 reports; France with 2 reports. The most common categories in these recent reports were: Web App Attack 19 times; Brute-Force 13 times; Bad Web Bot 13 times; Port Scan 2 times.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇮🇹 CoreTech srl	2026-10-18 14:53:56 (2 hours ago)	cloudlinux2 fail2ban: 2026-10-18 16:48:48,704 fail2ban.filter [2057]: INFO [plesk-modsecu ... show more cloudlinux2 fail2ban: 2026-10-18 16:48:48,704 fail2ban.filter [2057]: INFO [plesk-modsecurity] Found 104.23.239.20 - 2026-10-18 16:48:48cloudlinux2 fail2ban: 2026-10-18 16:48:48,774 fail2ban.filter [2057]: INFO [plesk-modsecurity] Found 104.23.239.20 - 2026-10-18 16:48:48cloudlinux2 fail2ban: 2026-10-18 16:48:49,199 fail2ban.filter [2057]: INFO [plesk-modsecurity] Found 104.23.239.20 - 2026-10-18 16:48:49cloudlinux2 fail2ban: 2026-10-18 16:48:48,750 fail2ban.filter [2057]: INFO [plesk-modsecurity] Found 104.23.239.20 - 2026-10-18 16:48:48cloudlinux2 fail2ban: 2026-10-18 16:48:49,170 fail2ban.filter [2057]: INFO [plesk-modsecurity] Found 104.23.239.21 - 2026-10-18 16:48:49cloudlinux2 fail2ban: 2026-10-18 16:48:49,244 fail2ban.filter [2057]: INFO [plesk-modsecurity] Found 104.23.239.20 - 2026-10-18 16:48:49cloudlinux2 fail2ban: 2026-10-18 16:48:49,420 fail2ban.filter [2057]: INFO [recidive] Found 104.23.239.20 - 2026-10-18 16:48:49clou show less	Brute-Force
🇩🇪 4server	2026-10-18 09:52:35 (7 hours ago)	[SunOct1811:52:32.2305602026][security2:error][pid3775437:tid3775528][client104.23.239.21:0]ModSecur ... show more [SunOct1811:52:32.2305602026][security2:error][pid3775437:tid3775528][client104.23.239.21:0]ModSecurity:Accessdeniedwithcode403$phase1$.Patternmatch\"$\?i$$\?:/\(\?:\^\\|/$\\\\\\\\.$env\\|git\\|svn\\|hg\\|DS_Store$\\|/$\?:wp-config\\|\\\\\\\\.htaccess\\|\\\\\\\\.htpasswd$\\|\\\\\\\\.$\?:sql\\|bak\\|old\\|log$\$\)\"atREQUEST_URI.[file\"/etc/apache2/conf.d/modsec_custom_rules.conf\"][line\"156\"][id\"960720\"][msg\"Forbiddenfileaccessattempt\"][severity\"CRITICAL\"][hostname\"gruppobalu.com\"][uri\"/config.php.bak\"][unique_id\"atSW4CRs77t-RHsn_mrSmQAAAUU\"] show less	Port Scan Brute-Force Web App Attack
🇺🇸 TPI-Abuse	2026-10-18 04:08:59 (13 hours ago)	(mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Port ... show more (mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sun Oct 18 00:08:49.716086 2026] [security2:error] [pid 13851:tid 13851] [client 104.23.239.21:12456] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|aschmidtconsulting.com\|F\|2"] [data ".php.bak"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "aschmidtconsulting.com"] [uri "/admin/config.php.bak"] [unique_id "atRGUeKGLGxgLBDoi7V7KAAAAAE"] show less	Brute-Force Bad Web Bot Web App Attack
🇸🇪 eagle	2026-10-18 01:31:32 (15 hours ago)	104.23.239.21 - - [18/Oct/2026:01:31:32 +0000] "GET /wp-content/plugins/woocommerce/readme.txt HTTP/ ... show more 104.23.239.21 - - [18/Oct/2026:01:31:32 +0000] "GET /wp-content/plugins/woocommerce/readme.txt HTTP/1.1" 301 162 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36" "[server]" ... show less	Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-10-18 01:10:38 (16 hours ago)	(mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Port ... show more (mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sat Oct 17 21:10:32.524612 2026] [security2:error] [pid 9949:tid 9949] [client 104.23.239.21:11080] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|blog.tulsatvmemories.com\|F\|2"] [data ".php.bak"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "blog.tulsatvmemories.com"] [uri "/admin/config.php.bak"] [unique_id "atQciDwLgNBkHKULULCIqQAAACQ"] show less	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-10-18 00:32:38 (16 hours ago)	(mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Port ... show more (mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sat Oct 17 20:32:29.924517 2026] [security2:error] [pid 24582:tid 24677] [client 104.23.239.21:10934] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|philacentric.com\|F\|2"] [data ".com.sql"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "philacentric.com"] [uri "/philacentric.com.sql"] [unique_id "atQTnZo6wWAMmSn_HHK3qwAAAcw"] show less	Brute-Force Bad Web Bot Web App Attack
🇺🇦 URAN Publishing Service	2026-10-18 00:25:15 (17 hours ago)	[18/Oct/2026:03:25:12 +0300] -- 104.23.239.21 Ban reason: Scanner [SENSITIVE_FILES] \| Request: GET / ... show more [18/Oct/2026:03:25:12 +0300] -- 104.23.239.21 Ban reason: Scanner [SENSITIVE_FILES] \| Request: GET /emepe.khpi.edu.ua.zip HTTP/1.1 show less	Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-10-17 21:39:27 (19 hours ago)	(mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Port ... show more (mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sat Oct 17 17:39:17.765105 2026] [security2:error] [pid 1746:tid 2238] [client 104.23.239.21:10190] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|psychclinicforchange.com\|F\|2"] [data ".sql"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "psychclinicforchange.com"] [uri "/db.sql"] [unique_id "atPrBYeBDb6akmnsCJeIfAAAABU"] show less	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-10-17 19:56:29 (21 hours ago)	(mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Port ... show more (mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sat Oct 17 15:56:23.345318 2026] [security2:error] [pid 13913:tid 13919] [client 104.23.239.21:12508] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|saskiarose.com\|F\|2"] [data ".php.bak"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "saskiarose.com"] [uri "/config.php.bak"] [unique_id "atPS57khrV3agbP-xc7JJwAAAIQ"] show less	Brute-Force Bad Web Bot Web App Attack
🇫🇷 dynamix	2026-10-16 11:39:23 (2 days ago)	Multiple WAF Violations	Web App Attack
🇺🇸 TPI-Abuse	2026-10-15 02:36:43 (3 days ago)	(mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Port ... show more (mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Wed Oct 14 22:36:40.161841 2026] [security2:error] [pid 16123:tid 16123] [client 104.23.239.21:12382] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|visionremota.info\|F\|2"] [data ".sql"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "visionremota.info"] [uri "/db.sql"] [unique_id "atA8OFEVglJ2xsg_FjBVegAAAAA"] show less	Brute-Force Bad Web Bot Web App Attack
🇩🇪 4server	2026-10-14 21:04:11 (3 days ago)	[WedOct1423:04:04.4275582026][security2:error][pid3020570:tid3020659][client104.23.239.21:0]ModSecur ... show more [WedOct1423:04:04.4275582026][security2:error][pid3020570:tid3020659][client104.23.239.21:0]ModSecurity:Accessdeniedwithcode403$phase1$.Patternmatch\"$\?i$$\?:/\(\?:\^\\|/$\\\\\\\\.$env\\|git\\|svn\\|hg\\|DS_Store$\\|/$\?:wp-config\\|\\\\\\\\.htaccess\\|\\\\\\\\.htpasswd$\\|\\\\\\\\.$\?:sql\\|bak\\|old\\|log$\$\)\"atREQUEST_URI.[file\"/etc/apache2/conf.d/modsec_custom_rules.conf\"][line\"156\"][id\"960720\"][msg\"Forbiddenfileaccessattempt\"][severity\"CRITICAL\"][hostname\"hdcadvisory.ch\"][uri\"/config.php.bak\"][unique_id\"as_uRLMiVwS9350R2O2iWAAAAdI\"] show less	Port Scan Brute-Force Web App Attack
🇩🇪 pltcldvlpr	2026-10-14 10:17:37 (4 days ago)	CMS/framework probe: 104.23.239.21 - - [14/Oct/2026:12:17:35 +0200] "GET /.aws/credentials HTTP/1.1" ... show more CMS/framework probe: 104.23.239.21 - - [14/Oct/2026:12:17:35 +0200] "GET /.aws/credentials HTTP/1.1" 301 162 "https://www.google.com/search?q=cloud.netznarbe.de" "Mozilla/5.0 (Linux; Android 14; Pixel 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.6422.113 Mobile Safari/537.36" asn=13335 org="Cloudflare, Inc." country=DE ... show less	Web App Attack
🇺🇸 TPI-Abuse	2026-10-14 07:28:06 (4 days ago)	(mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Port ... show more (mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Wed Oct 14 03:27:58.670436 2026] [security2:error] [pid 20050:tid 20050] [client 104.23.239.21:10893] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|wiltoncheese.com\|F\|2"] [data ".sql"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "wiltoncheese.com"] [uri "/backup.sql"] [unique_id "as8u_lVU6SIFcjU_tTHE-wAAAAo"] show less	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-10-14 02:09:10 (4 days ago)	(mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Port ... show more (mod_security) mod_security (id:210730) triggered by 104.23.239.21 (-): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Tue Oct 13 22:09:03.767571 2026] [security2:error] [pid 16307:tid 16307] [client 104.23.239.21:14298] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|intrinsicdiscovery.com\|F\|2"] [data ".sql"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "intrinsicdiscovery.com"] [uri "/database.sql"] [unique_id "as7kP7mPFBuzknEWBfHm9AAAAAA"] show less	Brute-Force Bad Web Bot Web App Attack

Showing 1 to 15 of 150 reports

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