User Removed From Group With CA Policy Modification Access
What it detects
Monitor and alert on group membership removal of groups that have CA policy modification access
MITRE ATT&CK mapping
False positives and triage
User removed from the group is approved
The rule
Declarative YAML read by the detection engine — data, never executed. Confidence 60%. Source: rules/sigma/sigma.azure_audit_logs_azure_group_user_removal_ca_modification.yaml, licensed under the Detection Rule License 1.1.
id: sigma.azure_audit_logs_azure_group_user_removal_ca_modification
version: 1.0.0
status: experimental
severity: medium
confidence: 0.6
platforms:
- application
mitre_techniques:
- T1548
- T1556
description: Monitor and alert on group membership removal of groups that have CA policy modification access
match:
event_category: account
raw_message_any:
- Remove member from group
false_positive_guidance: User removed from the group is approved
Converted from the SigmaHQ rule “User Removed From Group With CA Policy Modification Access” by Mark Morowczynski '@markmorow', Thomas Detzner '@tdetzner', distributed under the Detection Rule License 1.1. Original rule.
Related detections
Run this rule on your own logs — offline
KIROSEC runs this rule and the rest of the library over Windows, Linux, macOS and cloud audit logs on the analyst's own machine. Every alert links to the events that raised it, and nothing leaves the device.