From 3f6eda261ed485e1813ef974043250081bcfa847 Mon Sep 17 00:00:00 2001 From: pyth0n1c <87383215+pyth0n1c@users.noreply.github.com> Date: Fri, 4 Nov 2022 09:56:25 -0700 Subject: [PATCH] Carried over changes from external PR to repo --- detections/cloud/o365_disable_mfa.yml | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/detections/cloud/o365_disable_mfa.yml b/detections/cloud/o365_disable_mfa.yml index f29540759a..2abb084e33 100644 --- a/detections/cloud/o365_disable_mfa.yml +++ b/detections/cloud/o365_disable_mfa.yml @@ -7,11 +7,13 @@ type: TTP datamodel: [] description: This search detects when multi factor authentication has been disabled, what entitiy performed the action and against what user -search: '`o365_management_activity` Operation="Disable Strong Authentication." | stats - count earliest(_time) as firstTime latest(_time) as lastTime by UserType Operation - UserId ResultStatus |`security_content_ctime(firstTime)` |`security_content_ctime(lastTime)` - | `o365_disable_mfa_filter`' -how_to_implement: You must install splunk Microsoft Office 365 add-on. This search +search: '`o365_management_activity` Operation="Disable Strong Authentication." +| stats count earliest(_time) as firstTime latest(_time) as lastTime by UserType Operation UserId ResultStatus object +| rename UserType AS user_type, Operation AS action, UserId AS src_user, object AS user, ResultStatus AS result +| `security_content_ctime(firstTime)` +| `security_content_ctime(lastTime)` +| `o365_disable_mfa_filter`' +how_to_implement: You must install the Splunk Microsoft Office 365 add-on. This search works with o365:management:activity known_false_positives: Unless it is a special case, it is uncommon to disable MFA or Strong Authentication @@ -60,4 +62,4 @@ tags: - dest - ResultStatus risk_score: 64 - security_domain: threat + security_domain: threat \ No newline at end of file