1200KM / detection
T1056.003 Web Portal Capture — Detection Rules
Detection workspace for T1056.003 Web Portal Capture: 0 Sigma sources, 0 Atlas concepts and 0 anomaly models. No live detection validation.
Source-backed rule directory
No reviewed association in this snapshot.
Atlas deterministic concepts
No exact concept selected.
Anomaly models
No exact Atlas model in this snapshot.
ATT&CK analytic guidance
DET0480 Detection of Credential Harvesting via Web Portal Modification
AN1320 Analytic 1320
Detects unauthorized modifications to login-facing web server files (e.g., index.php, login.js) typically tied to VPN, SSO, or intranet portals. Correlates suspicious file changes with remote access artifacts or web shell behavior.
AN1321 Analytic 1321
Detects tampering of IIS-based login pages (e.g., default.aspx, login.aspx) tied to VPN, OWA, or SharePoint via script injection or unexpected editor processes modifying web roots.
AN1322 Analytic 1322
Detects unauthorized changes to locally hosted login pages on macOS (common in developer VPN environments) and links file edits to cron jobs, background scripts, or SUID binaries.
Connected ecosystem references
Linked tags
Simulation, tools and telemetry
T1056.003 simulation workspace
No reviewed association in this snapshot.
Threat actor context
These are explicit actor-to-technique associations in the existing Threat Matrix snapshot, not attribution of an event or proof that a detector identifies the actor. No tool-to-actor relationship is inferred.
Existing anomaly research
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.