Analytics Alerts

Browse the Cortex analytics alert reference.

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7 alerts match the current filters. tactic: TA0040 ✕ technique: T1562 ✕

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  • AWS CloudWatch log group deletion Informational Cloud

    An AWS CloudWatch log group was deleted, this action permanently deletes all the archives associated with this group.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Impact (TA0040) Defense Evasion (TA0005)
    ATT&CK techniques: Data Destruction (T1485) Impair Defenses: Disable or Modify Cloud Logs (T1562.008)
    Required data: AWS Audit Log
    Attacker's goals: An attacker may change the configuration of the affected resource to remain undetected.
    Investigative actions: Check why the identity deleted the log group. Check what resources were affected by this change.
  • AWS CloudWatch log stream deletion Informational Cloud

    An AWS CloudWatch log stream was deleted, this action permanently deletes all the archives associated with this stream.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Impact (TA0040) Defense Evasion (TA0005)
    ATT&CK techniques: Data Destruction (T1485) Impair Defenses: Disable or Modify Cloud Logs (T1562.008)
    Required data: AWS Audit Log
    Attacker's goals: An attacker may change the configuration of the affected resource to remain undetected.
    Investigative actions: Check why the identity deleted the log stream. Check which resource is affected by this change.
  • An AWS S3 bucket configuration was modified Informational Cloud

    An AWS S3 bucket configuration has been modified.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    5 Days
    ATT&CK tactics: Defense Evasion (TA0005) Impact (TA0040)
    ATT&CK techniques: Impair Defenses (T1562) Data Encrypted for Impact (T1486)
    Required data: AWS Audit Log
    Detector tags: Cloud Data Asset Configuration, Data Detection & Response
    Attacker's goals: Modify storage configuration to detection or allow access to sensitive information.
    Investigative actions: Examine AWS S3 access to identify any suspicious activity. Check which S3 buckets were affected.
  • Azure Automation Runbook Deletion Informational Cloud

    An Azure Automation runbook was deleted. This could disrupt business automation processes or remove a malicious runbook that was part of an attack.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Defense Evasion (TA0005) Impact (TA0040)
    ATT&CK techniques: Impair Defenses (T1562) Service Stop (T1489)
    Required data: Azure Audit Log
    Attacker's goals: Stop business services.
    Investigative actions: Check which runbook was deleted and whether it is malicious or valid.
  • Azure Resource Group Deletion Informational Cloud

    Resource group deletion permanently deletes all resources within the group, An attacker might use this technique to avoid detection or destroy procedures/data.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    3 Hours
    ATT&CK tactics: Impact (TA0040) Defense Evasion (TA0005)
    ATT&CK techniques: Data Destruction (T1485) Impair Defenses (T1562) Impair Defenses: Disable or Modify Cloud Logs (T1562.008)
    Required data: Azure Audit Log
    Attacker's goals: Evade detection.
    Investigative actions: Check which resource group was deleted.
  • Data Sharing between GCP and Google Workspace was disabled Informational Identity Threat Module 3 variations

    An identity has modified data sharing settings between GCP and Google Workspace.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    2 Days
    ATT&CK tactics: Defense Evasion (TA0005) Impact (TA0040)
    ATT&CK techniques: Indicator Removal (T1070) Impair Defenses (T1562) Data Manipulation (T1565) Impair Defenses: Disable or Modify Cloud Logs (T1562.008)
    Required data: Google Workspace Audit Logs
    Detector tags: Google Workspace
    Attacker's goals: Adversaries may stop audit log events from being sent to remove evidence of their presence or hinder defenses.
    Investigative actions: Check if the identity intended to perform this action or look for signs that the user account is compromised (e.g. abnormal logins, unusual activity). Check whether Google Workspace audit log events were configured to be sent to Google Cloud. Follow further actions done by the account.

    Variations

    Data Sharing between GCP and Google Workspace was disabled by a suspicious identity

    Low overridden

    An identity has modified data sharing settings between GCP and Google Workspace. overridden

    Data Sharing between GCP and Google Workspace was disabled by a non Google Workspace administrative user

    Low overridden

    An identity has modified data sharing settings between GCP and Google Workspace. overridden

    Data Sharing between GCP and Google Workspace was disabled from an unusual ASN

    Low overridden

    An identity has modified data sharing settings between GCP and Google Workspace. overridden

  • Logging was impaired via external encryption key Medium Cloud

    The resource was configured with an external key This might be an attempt to disrupt log inspection.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Impact (TA0040) Defense Evasion (TA0005)
    ATT&CK techniques: Data Manipulation (T1565) Impair Defenses (T1562)
    Required data: AWS Audit Log Gcp Audit Log
    Attacker's goals: Modifying the key used to encrypt the logs to remain undetected.
    Investigative actions: Check the identity that updated the resource configuration. Check the key used to encrypt the logs.