137.23.10.39

In feed.txt Persistent Regular Toolkit

Blocked on our servers, including web requests through Cloudflare, since 15 Oct 2026 18:43 UTC, through 15 Oct 2027 18:43 UTC, and in feed.txt.

Record

Score: 32/100each request counts half as much after 30 days
Worst level: Persistent
Attack-shaped requests: 30all time
Active days: 4UTC days
First seen: 3 Oct 2026
Last seen: 15 Oct 2026 18:33
Servers hit: 6
Targets: 4sites
Times blocked: 1by the evidence rules

First seen on 3 Oct 2026 10:54 UTC, most recently active on 15 Oct 2026 18:33 UTC.

Recorded 30 attack-shaped requests across 4 separate days.

Its traffic requested a WordPress core file used to fingerprint the installed version and active plugins (18 requests); it also probed the WordPress REST API batch endpoint, often used to fingerprint or chain other WordPress vulnerabilities (5); it also requested wp-login.php to check whether this site runs WordPress (3); 4 requests matched no known pattern.

Seen by our edge and web sensors, against 4 of the sites we watch: haived.com, techauthors.eu, techwriters.eu and victorantonov.com.

Scored into the "Persistent" level, its highest so far. Badges: Regular and Toolkit.

Its busiest hour on record began 15 Oct 2026 18:00 UTC, with 10 requests.

Routed via AS31898 (Oracle Corporation), a cloud network.

Surfaces: web-app. Attack types: scanning, unclassified. Seen by: edge, web.

Activity, last 90 days

Active on 4 of the last 90 UTC days. Current block: 15 Oct 2026 to 15 Oct 2027.

Daily counts

Attack requests per UTC day, days with activity only
Day (UTC)	Requests
3 Oct 2026	6
12 Oct 2026	7
14 Oct 2026	7
15 Oct 2026	10

At least 10 requests a minute at its peak (15 Oct 2026 18:33 UTC; identical requests in the same second are stored once).
Methods: GET 19, POST 12.
The servers we watch answered: 404 17, 301 5, 400 4 (totals only, from our web servers).

Evidence

Newest first, the latest 50 stored requests grouped into runs. Times are UTC. The user agent is shown as its family only.

Evidence, newest first, grouped by UTC day
Time	Site	What happened	Request	User agent	Seen by
15 Oct 2026
18:33	haived.com	requested wp-login.php to check whether this site runs WordPress	`GET /wp-login.php`	browser claim	web
18:33	haived.com	requested a WordPress core file used to fingerprint the installed version and active plugins	`GET /wp-admin/admin-ajax.php?`	browser claim	web
18:33	haived.com	requested a WordPress core file used to fingerprint the installed version and active plugins	`GET /wp-admin/admin-ajax.php?`	browser claim	web
18:33	haived.com	requested a WordPress core file used to fingerprint the installed version and active plugins	`POST /wp-admin/admin-ajax.php?`	browser claim	web
18:33	haived.com	requested a WordPress core file used to fingerprint the installed version and active plugins	`GET /wp-admin/admin-ajax.php`	browser claim	web
18:33	haived.com	2× requested a WordPress core file used to fingerprint the installed version and active plugins (2 distinct paths)	`GET /wp-admin/admin-ajax.php`	browser claim	web
18:33	haived.com	probed the WordPress REST API batch endpoint, often used to fingerprint or chain other WordPress vulnerabilities	`GET /wp-json/batch/v1`	browser claim	web
18:33	haived.com	probed the WordPress REST API batch endpoint, often used to fingerprint or chain other WordPress vulnerabilities	`POST /wp-json/batch/v1`	browser claim	web
18:33	haived.com	was blocked at the edge without matching any specific attack signature	`POST /`	browser claim	edge
14 Oct 2026
00:40	techwriters.eu	requested wp-login.php to check whether this site runs WordPress	`GET /wp-login.php`	browser claim	web
00:39	techwriters.eu	requested a WordPress core file used to fingerprint the installed version and active plugins	`GET /wp-admin/admin-ajax.php?`	browser claim	web
00:39	techwriters.eu	requested a WordPress core file used to fingerprint the installed version and active plugins	`POST /wp-admin/admin-ajax.php?`	browser claim	web
00:39	techwriters.eu	requested a WordPress core file used to fingerprint the installed version and active plugins	`GET /wp-admin/admin-ajax.php`	browser claim	web
00:39	techwriters.eu	was blocked at the edge without matching any specific attack signature	`POST /`	browser claim	edge
00:39	techwriters.eu	requested a WordPress core file used to fingerprint the installed version and active plugins	`GET /wp-admin/admin-ajax.php?`	browser claim	web
00:39	techwriters.eu	probed the WordPress REST API batch endpoint, often used to fingerprint or chain other WordPress vulnerabilities	`POST /wp-json/batch/v1`	browser claim	web
12 Oct 2026
03:02	techauthors.eu	requested wp-login.php to check whether this site runs WordPress	`GET /wp-login.php`	browser claim	web
03:02	techauthors.eu	requested a WordPress core file used to fingerprint the installed version and active plugins	`GET /wp-admin/admin-ajax.php?`	browser claim	web
03:02	techauthors.eu	requested a WordPress core file used to fingerprint the installed version and active plugins	`POST /wp-admin/admin-ajax.php?`	browser claim	web
03:02	techauthors.eu	2× requested a WordPress core file used to fingerprint the installed version and active plugins (2 distinct paths)	`GET /wp-admin/admin-ajax.php`	browser claim	web
03:02	techauthors.eu	probed the WordPress REST API batch endpoint, often used to fingerprint or chain other WordPress vulnerabilities	`POST /wp-json/batch/v1`	browser claim	web
03:02	techauthors.eu	was blocked at the edge without matching any specific attack signature	`POST /`	browser claim	edge
3 Oct 2026
10:54	victorantonov.com	made a request that matched no known pattern	`GET /wp-login.php`	browser claim	edge
10:54	victorantonov.com	requested a WordPress core file used to fingerprint the installed version and active plugins	`GET /wp-admin/admin-ajax.php?`	browser claim	web
10:54	victorantonov.com	requested a WordPress core file used to fingerprint the installed version and active plugins	`POST /wp-admin/admin-ajax.php?`	browser claim	web
10:54	victorantonov.com	2× requested a WordPress core file used to fingerprint the installed version and active plugins (2 distinct paths)	`GET /wp-admin/admin-ajax.php`	browser claim	web
10:54	victorantonov.com	probed the WordPress REST API batch endpoint, often used to fingerprint or chain other WordPress vulnerabilities	`POST /wp-json/batch/v1`	browser claim	web
10:54	victorantonov.com	was blocked at the edge without matching any specific attack signature	`POST /`	browser claim	edge

Network

ASN: AS31898 Oracle Corporation
Network type: cloud
Reverse DNS: none
Country: Australia AU
City: Bungarribee (registry location of a hosting network)
Flags: none observed
Abuse contact: found in the registry
Checked: 10 Oct 2026

Elsewhere: GreyNoise, Shodan, AbuseIPDB.

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