Isai
590cc9cbbd
Rule is executing as expected, however it is alerting on failed requests. Low alert telemetry. This tuning: - removed markdown and edited description to be more specific - reduced execution window for 1 min lookback - name change to add `AWS` consistent with all other rules - added references that reflect in the wild threats and persistence usage - increased risk_score and severity to medium accounting for usage as persistence mechanism in the wild - added Persistence tag and Mitre tactic, technique, subtechnique - added `event.outcome: success` criteria to query - edited investigation guide to be more accurate reflection of steps required for investigating alert, including appropriate response action - added highlighted fields ** Note: only IAMUser and Root user identities can call this actions so we can use `aws.cloudtrail.user_identity.arn` as the new terms field without worrying about Role vs Role + Session issue seen with other new_terms rules
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 |