Isai
f8f4c0476b
`DeleteFileSystem` permanently removes an Amazon EFS file system and all stored data. This operation has no recovery path and represents a clear Impact-level destructive action when performed unintentionally or by an unauthorized actor. It is rare in most environments and typically limited to infrastructure teardown or automated provisioning workflows. Currently this rule also matches `DeleteMountTarget` events. This action appears frequently in normal EFS lifecycle workflows and is not, by itself, a strong indicator of malicious intent. Since only `DeleteFileSystem` represents irreversible destructive impact, the rule has been narrowed to focus exclusively on the meaningful threat behavior. - removed `DeleteMountTarget` scope from query - rule name change and toml file name change to match new scope - reduced execution window - updated tags - updated description, FP and IG - added highlighted fields
rules/
Rules within this folder are organized by solution or platform. The structure is flattened out, because nested file hierarchies are hard to navigate and find what you're looking for. Each directory contains several .toml files, and the primary ATT&CK tactic is included in the file name when it's relevant (i.e. windows/execution_via_compiled_html_file.toml)
| folder | description |
|---|---|
. |
Root directory where rules are stored |
apm/ |
Rules that use Application Performance Monitoring (APM) data sources |
cross-platform/ |
Rules that apply to multiple platforms, such as Windows and Linux |
integrations/ |
Rules organized by Fleet integration |
linux/ |
Rules for Linux or other Unix based operating systems |
macos/ |
Rules for macOS |
ml/ |
Rules that use machine learning jobs (ML) |
network/ |
Rules that use network data sources |
promotions/ |
Rules that promote external alerts into detection engine alerts |
windows/ |
Rules for the Microsoft Windows Operating System |
Integration specific rules are stored in the integrations/ directory:
| folder | integration |
|---|---|
aws/ |
Amazon Web Services (AWS) |
azure/ |
Microsoft Azure |
cyberarkpas/ |
Cyber Ark Privileged Access Security |
endpoint/ |
Elastic Endpoint Security |
gcp/ |
Google Cloud Platform (GCP) |
google_workspace/ |
Google Workspace (formerly GSuite) |
o365/ |
Microsoft Office |
okta/ |
Oka |