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code method

HTTP method anomaly

Syndu annotates all incoming traffic and extracts behavioral signals that help explain intent. This page defines the method signal — what it means, how to interpret it, and how it will later connect to live evidence across IPs, subnets, organizations, ISPs, countries, and cities.

Signal gist Unusual or unexpected HTTP methods observed for the target endpoints.
Read the definition → View live signal sections →

Definition

Canonical reference for method behavior.
Catalog code
method
Display name
HTTP method anomaly
How to read this signal
This annotator represents a behavioral pattern, not a claim of identity. It’s designed to help you understand why certain traffic looks suspicious, automated, probing, or exploit-oriented — and to support consistent reporting across the Syndu system.
Explanation
Flags requests using HTTP methods that are atypical for the application or for specific endpoints (e.g., unexpected verbs, method switching across retries, or methods inconsistent with normal browsing). This can reflect probing, misuse attempts, or misconfigured clients. Interpret with endpoint intent (browser page vs API vs upload) and response patterns (405/403/400).

Live sections

These panels will be wired to real metrics, enrichment context, and drill-down links.
Signal footprint over time
Rolling volume, bursts, first/last seen, and time-window slices (e.g. last hour/day/week). This will help separate chronic background noise from active campaigns.
Coming next: time series + burst markers
Top affected entities
Links to the entities where method is most present: IPs, subnets, organizations/ASNs, ISPs, and geographies — with “why” context.
Coming next: entity leaderboards + drill-down
Enrichment context
How enrichment affects interpretation: known crawlers, monitored ranges, trusted scanners, or policy exceptions. This is where “benign but noisy” gets separated from “unknown and risky.”
Coming next: enrichment flags + allowlist context