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rules/azure: End-user consent to app with mailbox + offline_access delegated scopes - #6277

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rules/azure: End-user consent to app with mailbox + offline_access delegated scopes#6277
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New azure/auditlogs rule (T1528, Steal Application Access Token). Narrows the broad 'End User Consent' event to the high-fidelity combination: non-admin consent + a high-risk mailbox delegated scope (Mail.Read/ReadWrite/Send/MailboxSettings.ReadWrite) + offline_access. Validated: sigma check (0 issues), test_rules.py, test_logsource.py, official json-schema, yamllint --strict.

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Signed-off-by: Eduard Arbona <175124143+earbona23@users.noreply.github.com>
@github-actions github-actions Bot added Rules Review Needed The PR requires review labels Sep 3, 2026

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Welcome @earbona23 👋

It looks like this is your first pull request on the Sigma rules repository!

Please read the SigmaHQ conventions to ensure your contribution adheres to best practices and includes all the necessary elements for a successful review.

Also check CONTRIBUTING.md for more information on how to contribute to the Sigma rules repository, specifically proper testing and validation of your rules.

Thanks again, and welcome to the Sigma community! 😃

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