Successful guest user invitation
This Playbook is part of the Cortex Response And Remediation Pack.#
Supported versions
Supported Cortex XSOAR versions: 6.10.0 and later.
This playbook addresses the following alert:
- Rare successful guest invitation in the organization
Playbook Stages:
Triage:
- Gather initial information about the invited user and associated alerts.
Investigation:
- Check IOCs Reputation:
- Analyze the reputation of IP addresses, email addresses, and domains related to the incident.
- Check for Azure Alerts:
- Retrieve user Principal Name (UPN).
- Extract recent Azure security alerts for the inviting user.
- Check if User is Risky:
- Assess the risk score of the inviting user based on Core and Azure risk indicators.
- Investigate reasons behind any identified risks, including recent detections.
Containment:
- Provide a manual task for an analyst to review the findings and decide the next steps.
- Possible actions:
- Disable the invited user.
- Disable the inviting user.
- Disable both users.
- Take no action.
- If users are disabled, revoke their active sessions to ensure immediate containment.
Requirements: For the best results, it's recommended to ensure these integrations are configured and working:
Cortex Core - Investigation and Responsefor Core user risk evaluation.Azure Risky Usersfor retrieving user risk scores.Microsoft 365 Defenderfor advanced hunting queries and Azure security alerts.Microsoft Graph Userfor disabling accounts and revoking sessions.
Dependencies#
This playbook uses the following sub-playbooks, integrations, and scripts.
Sub-playbooks#
This playbook does not use any sub-playbooks.
Integrations#
This playbook does not use any integrations.
Scripts#
- GetTime
- SetAndHandleEmpty
- clear-user-session
- disable-user
- domain-enrichment
- get-user-data
- ip-enrichment
Commands#
- azure-risky-users-list
- azure-risky-users-risk-detections-list
- closeInvestigation
- core-get-cloud-original-alerts
- microsoft-365-defender-advanced-hunting
Playbook Inputs#
There are no inputs for this playbook.
Playbook Outputs#
There are no outputs for this playbook.
Playbook Image#
