Elastic Security Detection Rules

Web Application Suspicious Activity: Unauthorized Method

Last updated 7 days ago on 2026-07-18
Created 6 years ago on 2020-02-18

About

A request to a web application returned a 405 response, which indicates the web application declined to process the request because the HTTP method is not allowed for the resource.
Tags
Data Source: APMLanguage: kuery
Severity
medium
Risk Score
47
False Positive Examples
Security scans and tests may result in these errors. Misconfigured or buggy applications may produce large numbers of these errors. If the source is unexpected, the user unauthorized, or the request unusual, these may indicate suspicious or malicious activity.
License
Elastic License v2(external, opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
apm-*-transaction*traces-apm*
Related Integrations

apm(external, opens in a new tab or window)

Query
text code block:
http.response.status_code:405 and http.request.method:(* and not (GET or HEAD or OPTIONS or POST))

Install detection rules in Elastic Security

Detect Web Application Suspicious Activity: Unauthorized Method in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(external, opens in a new tab or window).