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sigma-rules/rules
James Valente 36d595ae2f [Rule Tuning] Add exceptions for non-interactive signin failures for Entra M365 Bruteforce (#4405)
* Add exceptions for non-interactive signin failures.

Include exceptions for error codes, restricted to `NonInteractiveUserSignInLogs` and token refreshes:

- 70043 : Refresh token expired or no longer valid due to conditional access frequency checks
- 70044 : Session expired or no longer valid due to conditional access frequency checks
- 50057 : User account is disabled

* Update rules/integrations/azure/credential_access_entra_signin_brute_force_microsoft_365.toml

* Update metadata for `updated_date`

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Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
Co-authored-by: Mika Ayenson, PhD <Mikaayenson@users.noreply.github.com>
Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
2025-05-06 22:43:15 +05:30
..
2025-03-26 11:04:14 -04:00

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/ Oka