Files
sigma-rules/rules
Terrance DeJesus ae5ecd5346 [Rule Tuning] AWS suspicious user agents (TruffleHog, Kali CLI/Boto3) (#5902)
* Expand AWS CloudTrail user-agent rule for TruffleHog and Kali

- Rename rule file to initial_access_suspicious_user_agent_detected_in_cloudtrail.toml
- Rule name: AWS Suspicious User Agent Fingerprint
- Match TruffleHog in user_agent.original (successful API calls)
- Retain Kali Linux distrib#kali fingerprint for aws-cli/Boto3
- Refresh narrative and references (incl. Kudelski Trivy supply-chain analysis)

Same rule_id f80ea920-f6f5-4c8a-9761-84ac97ec0cb2.

Made-with: Cursor

* Apply suggestion from @terrancedejesus
2026-04-03 11:50:28 -04:00
..
2026-03-06 16:12:45 -06:00

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/ Okta