20.204.42.136

blockedRelentlessRegularToolkit

Case file

First seen on 2026-09-26T11:38:20Z, most recently active on 2026-10-04T18:19:55Z.

Recorded 506 attack-shaped requests across 5 separate days.

Its traffic fuzzed a short, random filename looking for a forgotten script that responds; it also checked for a known-vulnerable or backdoored WordPress plugin path; it also requested a WordPress core file used to fingerprint the installed version and active plugins.

Seen from 3 of our sensors: edge, nl4-web, s19-web.

Scored into the "Relentless" level, carrying the badges Regular, Toolkit.

Routed via AS8075 (Microsoft Corporation), an ASN we classify as cloud.

Blocked on every one of our hosts and at our edge since 2026-10-04T15:29:58Z, through 2027-01-02T15:29:58Z.

Enrichment

rDNSnone
ASNAS8075 — Microsoft Corporation
ASN typecloud
CountryIndia (IN)
Flagsnone observed

External references: GreyNoise, Shodan, AbuseIPDB

Timeline

Evidence (newest first, up to 50)

Time (UTC)VantageSiteClassStatusEvidence
2026-10-04T18:19:46Z – 2026-10-04T18:19:55Z ×18nl4-web4emx.com18 × fuzzed a short, random filename looking for a forgotten script that responds40420.204.42.136 - - [04/Oct/2026:21:19:55 +0300] "GET /adminfuns.php HTTP/1.1" 404 16 "-" "-" (18 distinct paths)
2026-10-04T18:19:46Znl4-web4emx.comrequested a filename commonly used by web shells left behind by a previous compromise40420.204.42.136 - - [04/Oct/2026:21:19:46 +0300] "GET /zwso.php HTTP/1.1" 404 16 "-" "-"
2026-10-04T18:19:35Z – 2026-10-04T18:19:45Z ×25nl4-web4emx.com25 × fuzzed a short, random filename looking for a forgotten script that responds40420.204.42.136 - - [04/Oct/2026:21:19:45 +0300] "GET /yachi.php HTTP/1.1" 404 16 "-" "-" (25 distinct paths)
2026-10-04T18:19:35Znl4-web4emx.comrequested a WordPress core file used to fingerprint the installed version and active plugins40420.204.42.136 - - [04/Oct/2026:21:19:35 +0300] "GET /wp-trackback.php HTTP/1.1" 404 16 "-" "-"
2026-10-04T18:19:33Z – 2026-10-04T18:19:35Z ×5nl4-web4emx.com5 × fuzzed a short, random filename looking for a forgotten script that responds40420.204.42.136 - - [04/Oct/2026:21:19:35 +0300] "GET /faze.php HTTP/1.1" 404 16 "-" "-" (5 distinct paths)

Report history

No abuse report sent for this address yet.

Not currently correlated with any campaign.

Dispute or removal: [email protected] — reference 20.204.42.136 (mailbox goes live with phase 3). See /threats/about for the method and the 7-day review window.

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