Azure Login Explicitly Denied MFA
Set up the azure integration.
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Goal
Detect and identify the network IP address when multiple user accounts failed to complete the MFA process.
Strategy
Monitor Azure Active Directory Sign-in logs and detect when any @evt.category
is equal to SignInLogs
, @properties.authenticationRequirement
is equal to multiFactorAuthentication
and @evt.outcome
is equal to failure
.
Triage and response
- Inspect the log and determine if this was a valid login attempt.
- If the user was compromised, rotate user credentials.