1200KM / detection
T1027.006 HTML Smuggling — Detection Rules
Detection workspace for T1027.006 HTML Smuggling: 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
DET0313 Detection Strategy for HTML Smuggling via JavaScript Blob + Dynamic File Drop
AN0872 Analytic 0872
Detection of browser-based or email client-driven file creation (often from temp directories) following navigation to or execution of HTML files containing JavaScript Blob APIs or base64 Data URLs, with follow-on execution of the dropped payload. Leveraging Sysmon EventID 15 to inspect Zone.Identifier ADS for HostUrl/ReferrerUrl indicators (e.g., HostUrl=about:internet). Optional: absence of a large HTTP download record for the same URL/client in proxy logs (suggests local assembly)
AN0873 Analytic 0873
Detection of browser-based downloads from HTML sources that trigger file creation in temp or user directories followed by execution of new files within short timeframes and suspicious parent-child lineage.
AN0874 Analytic 0874
Detection of HTML-based downloads via Safari/Chrome that create obfuscated files (e.g., .zip, .app, .js) in user directories and are followed by suspicious executions from preview or launch services.
Connected ecosystem references
Linked tags
Simulation, tools and telemetry
T1027.006 simulation workspace
- File Creation · DC0039
- File Metadata · DC0059
- Network Traffic Content · DC0085
- Process Creation · DC0032
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.