Isai
d6ed1cd811
#### Deprecate RDS DB Instance/Cluster lifecycle detections `CreateDBInstance`, `CreateDBCluster`, `StopDBInstance`, `StopDBCluster`. These events occur frequently in normal workflows and do not reflect known attacker techniques. They are simply RDS lifecycle operations, with no real impact from an attacker-target perspective. These actions don't have a meaningful benefit for an attacker or cause a meaningful impact for a target. Threat activity around RDS is typically centered around snapshot sharing, export, and public exposure, which is already covered by other rules. There is also a theoretical case to be made for detecting destructive actions against RDS resources like `instance|cluster|snapshot Deletion`, this is covered by other rules. Removing these creation and stoppage rules reduces noise and keeps the AWS ruleset more aligned with real threat surfaces rather than infrastructure management. #### Deprecate Outdated DBSecurityGroup API rules `CreateDBSecurityGroup` and `DeleteDBSecurityGroup` were only used by RDS deployments on EC2-Classic, which AWS has fully retired. Modern RDS uses VPC Security Groups, making these APIs obsolete. These rules can no longer trigger and provide no threat-detection value. Network-permission manipulation is fully covered by our existing VPC Security Group rule - "AWS EC2 Security Group Configuration Change".
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 |