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Script file added to startup-related Registry keys

This Playbook is part of the Cortex Response And Remediation Pack.#

Supported versions

Supported Cortex XSOAR versions: 8.9.0 and later.

This playbook handles "Script file added to startup-related Registry keys" alerts.

Playbook Stages:

Analysis:

  • Extract the script path from the registry key value.
  • Check the reputation of the associated processes.

Investigation:

  • Searches for related Cortex XSIAM alerts to identify potential attack patterns.
  • Retrieves the script file and relevant details for investigation.
  • Analyzes the script for malicious or suspicious parameters:
    • If malicious parameters are found, proceed to remediation.
    • If suspicious parameters are found, detonate and analyze the script using WildFire Sandbox.
  • Checks the script file reputation.
  • Detonates and analyzes the script using WildFire Sandbox.

Remediation:

  • Terminates the malicious process.
  • Quarantines the malicious process.
  • Adds the malicious process hash to the blocklist.
  • Calculates the script file’s SHA256 hash if not already available.
  • Deletes the Registry key value (Requires analyst approval).
  • Adds the script file hash to the blocklist (Requires analyst approval).
  • Automatically close the alert.

Dependencies#

This playbook uses the following sub-playbooks, integrations, and scripts.

Sub-playbooks#

  • Quarantine File
  • Wildfire Sandbox - Detonate and Analyze File

Integrations#

This playbook does not use any integrations.

Scripts#

  • CommandLineAnalysis
  • MatchRegexV2
  • ReadFile
  • SearchAlertsV2
  • Set
  • SetAndHandleEmpty
  • SetMultipleValues
  • UnzipFile

Commands#

  • closeInvestigation
  • core-blocklist-files
  • core-get-cloud-original-alerts
  • core-get-script-execution-results
  • core-retrieve-file-details
  • core-retrieve-files
  • core-run-script-execute-commands
  • core-terminate-causality
  • extractIndicators
  • file
  • wildfire-get-verdict

Playbook Inputs#


There are no inputs for this playbook.

Playbook Outputs#


There are no outputs for this playbook.

Playbook Image#


Script file added to startup-related Registry keys