From 4dbbfbaf7cddea42850971ee2908e5e6fe71427d Mon Sep 17 00:00:00 2001 From: Gowthamaraj rajendran Date: Mon, 31 Jul 2023 15:18:14 -0700 Subject: [PATCH] Update detections/cloud/azure_ad_multiple_failed_mfa_requests_for_user.yml --- ..._ad_multiple_failed_mfa_requests_for_user.yml | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/detections/cloud/azure_ad_multiple_failed_mfa_requests_for_user.yml b/detections/cloud/azure_ad_multiple_failed_mfa_requests_for_user.yml index 02cf5f305b..8acbfec62f 100644 --- a/detections/cloud/azure_ad_multiple_failed_mfa_requests_for_user.yml +++ b/detections/cloud/azure_ad_multiple_failed_mfa_requests_for_user.yml @@ -18,8 +18,8 @@ description: The following analytic identifies multiple failed multi-factor auth this technique to bypass multi-factor authentication controls as reported by Mandiant and others. data_source: [] -search: ' `azuread` body.category=SignInLogs body.properties.status.errorCode=500121 - | rename body.properties.* as * | bucket span=10m _time | stats dc(_raw) AS mfa_prompts +search: ' `azuread` category=SignInLogs properties.status.errorCode=500121 + | rename properties.* as * | bucket span=10m _time | stats dc(_raw) AS mfa_prompts values(userPrincipalName) by userPrincipalName, status.additionalDetails, appDisplayName, userAgent, _time | where mfa_prompts > 10 | `azure_ad_multiple_failed_mfa_requests_for_user_filter`' how_to_implement: You must install the latest version of Splunk Add-on for Microsoft @@ -40,7 +40,7 @@ tags: asset_type: Azure Active Directory confidence: 90 impact: 60 - message: Multiple Failed MFA requests for user $body.properties.userPrincipalName$ + message: Multiple Failed MFA requests for user $properties.userPrincipalName$ mitre_attack_id: - T1586 - T1586.003 @@ -62,11 +62,11 @@ tags: - Splunk Cloud required_fields: - _time - - body.properties.status.errorCode - - body.category - - body.properties.authenticationDetails - - body.properties.userPrincipalName - - body.properties.ipAddress + - properties.status.errorCode + - category + - properties.authenticationDetails + - properties.userPrincipalName + - properties.ipAddress risk_score: 54 security_domain: identity tests: