1200KM / detection
T1217 Browser Information Discovery — Detection Rules
Detection workspace for T1217 Browser Information Discovery: 4 Sigma sources, 0 Atlas concepts and 0 anomaly models. No live detection validation.
Source-backed rule directory
- Suspicious File Access to Browser Credential Storage · experimental · low · {"category":"file_access","product":"windows"}
- Automated Collection Bookmarks Using Get-ChildItem PowerShell · test · low · {"product":"windows","category":"ps_script","definition":"Requirements: Script Block Logging must be enabled"}
- File And SubFolder Enumeration Via Dir Command · test · low · {"category":"process_creation","product":"windows"}
- Suspicious Where Execution · test · low · {"category":"process_creation","product":"windows"}
Atlas deterministic concepts
No exact concept selected.
Anomaly models
No exact Atlas model in this snapshot.
ATT&CK analytic guidance
DET0013 Detection of Local Browser Artifact Access for Reconnaissance
AN0037 Analytic 0037
Access to browser artifact locations (e.g., Chrome, Edge, Firefox) by processes like PowerShell, cmd.exe, or unknown tools, followed by file reads, decoding, or export operations indicating enumeration of bookmarks, autofill, or history databases.
AN0038 Analytic 0038
Unauthorized shell or script-based access to browser config or SQLite history files, typically in ~/.config/google-chrome/, ~/.mozilla/, or ~/.var/app folders, indicating enumeration of bookmarks or saved credentials.
AN0039 Analytic 0039
Scripting or CLI tool access to ~/Library/Application Support/Google/Chrome or ~/Library/Safari bookmarks, cookies, or history databases. Detection relies on unexpected processes accessing or reading from these locations.
Connected ecosystem references
Linked tags
Simulation, tools and telemetry
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
Complete technique engineering workbook
Collection configuration and event examples · Anomaly models and design worksheet · Tools and documented software · Simulation procedures · Offline synthetic collection check
Exact source tags are not semantic relevance verdicts. Review actual rule conditions and observation points; imported rules are not backend-compiled or live-validated.
Pinned research references. No browser attack runner or production-validated detector is asserted. Imported procedures remain unvalidated; any bounded lab evidence has its own scope. ATT&CK / Atomic provenance · Detection provenance.