Analytics Alerts

Browse the Cortex analytics alert reference.

Severity ▾
Detection module ▾
Data source ▾

14 alerts match the current filters. tactic: TA0040 ✕ technique: T1498 ✕

Download CSV Show ATT&CK heatmap
  • A Kubernetes service was created or deleted Informational Cloud

    A Kubernetes service was created or deleted.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    5 Days
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498)
    Required data: AWS Audit Log Azure Audit Log Gcp Audit Log Kubernetes Audit Logs
    Detector tags: Kubernetes - API
    Attacker's goals: Attackers may attempt to perform denial-of-service attacks to make services unavailable.
    Investigative actions: Check which changes were made to the Kubernetes service.
  • An Azure virtual network Device was modified Informational Cloud

    An Azure virtual network Device was modified or deleted.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    5 Days
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498)
    Required data: Azure Audit Log
    Attacker's goals: Gain access to resources within the virtual network. Gain access to sensitive data stored on the virtual network.
    Investigative actions: Investigate the Azure portal for the relevant virtual network device and review the changes made to it.* Review the Azure Activity Log for any suspicious activities related to the virtual network device.
  • An Azure virtual network was modified Informational Cloud

    An Azure virtual network has been modified or deleted.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    5 Days
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498)
    Required data: Azure Audit Log
    Attacker's goals: Manipulate, interrupt, or destroy data.
    Investigative actions: Verify whether the identity should be making this action.* Check the audit logs for any suspicious activity related to the virtual network.
  • Cloud identity reached a throttling API rate Informational Cloud 3 variations

    A cloud identity has executed a high volume of API calls, causing a throttling error.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    5 Days
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498)
    Required data: AWS Audit Log Azure Audit Log Gcp Audit Log
    Attacker's goals: Abuse cloud resource, such behavior is usually seen during cryptocurrency attacks.
    Investigative actions: Check the identity created resources and their legitimacy. Look for any unusual behavior originated from the suspected identity.

    Variations

    Cloud identity reached a highly unusual throttling API rate

    Low overridden

    A cloud identity has executed a high volume of API calls, causing a throttling error. This indicates on a high volume of cloud instances allocation, such activity may be related to a cryptocurrency attack. overridden

    Cloud identity reached an unusual throttling API rate in the cloud project

    Informational overridden

    A cloud identity has executed a high volume of API calls, causing a throttling error. This API rate is unusual on the project level. overridden

    Cloud identity reached an unusual throttling API rate

    Informational overridden

    A cloud identity has executed a high volume of API calls, causing a throttling error. This activity is unusual for The cloud identity, and was not seen in the last 30 days. overridden

  • Collection error High

    A collection error was detected.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498) Service Stop (T1489)
    Required data: Health Monitoring Data
    Attacker's goals: N/A.
    Investigative actions: N/A.
  • Correlation rule error Medium

    An error was identified while running a correlation rule.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    12 Hours
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498) Service Stop (T1489)
    Required data: Health Monitoring Data
    Attacker's goals: N/A.
    Investigative actions: N/A.
  • Error in event forwarding Medium

    An error was detected in event forwarding.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    4 Hours
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498) Service Stop (T1489)
    Required data: Health Monitoring Data
    Attacker's goals: N/A.
    Investigative actions: N/A.
  • GCP Virtual Private Cloud (VPC) Network Deletion Informational Cloud

    A GCP VPC network was deleted. An attacker might use this technique to interrupt business resources and workflows.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498)
    Required data: Gcp Audit Log
    Attacker's goals: Block the availability of targeted resources to users/services.
    Investigative actions: Check which services were affected by the VPC deletion. Check the cloud identity activity before and after the VPC network deletion.
  • GCP Virtual Private Network Route Creation Informational Cloud

    A GCP VPC route was created. An attacker might use this technique to impact business workflows.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498)
    Required data: Gcp Audit Log
    Attacker's goals: Block the availability of targeted resources to users/services.
    Investigative actions: Check which services were affected by the route creation. Check the cloud identity activity before or after the route creation.
  • GCP Virtual Private Network Route Deletion Informational Cloud

    A GCP VPC route was deleted. An attacker might use this technique to impact business workflows.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498)
    Required data: Gcp Audit Log
    Attacker's goals: Block the availability of targeted resources to users/services.
    Investigative actions: Check which services were affected by the route deletion. Check The cloud identity activity prior/after the route deletion.
  • Kubernetes network policy modification Informational Cloud

    A change has been made to the network policies of a Kubernetes cluster.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    5 Days
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498)
    Required data: AWS Audit Log Azure Audit Log Gcp Audit Log Kubernetes Audit Logs
    Detector tags: Kubernetes - API
    Attacker's goals: Gain access to the network infrastructure.* Gain access to sensitive data.* Gain access to Kubernetes resources.
    Investigative actions: Investigate the Kubernetes Network Policy to identify the changes made.* Verify whether the identity should be making this action.
  • Logs were not collected from a data source for an abnormally long time Low 4 variations

    Logs were not collected from a data source for an abnormally long time.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    1 Day
    Deduplication:
    6 Hours
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498) Service Stop (T1489)
    Required data: Health Monitoring Data
    Attacker's goals: N/A.
    Investigative actions: N/A.

    Variations

    Logs were not collected from a Windows Event Collector (WEC) for an abnormally long time

    Low overridden

    Logs were not collected from a data source for an abnormally long time. overridden

    Logs were not collected from a Microsoft Windows XDR Collector (XDRC) for an abnormally long time

    Low overridden

    Logs were not collected from a data source for an abnormally long time. overridden

    Logs were not collected from a data source for an abnormally long time, which indicates a significant stop

    Medium overridden

    Logs were not collected from a data source for an abnormally long time. overridden

    Logs were not collected from a data source for an abnormally long time, despite a stable and consistent data stream until recently

    Medium overridden

    Logs were not collected from a data source for an abnormally long time. overridden

  • Parsing Rule Error Medium

    A Parsing Rule error was detected.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    6 Hours
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Network Denial of Service (T1498) Service Stop (T1489)
    Required data: Health Monitoring Data
    Attacker's goals: N/A.
    Investigative actions: N/A.
  • Suspicious ICMP traffic that resembles smurf attack Low

    ICMP smurf attack was used.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    1 Hour
    Deduplication:
    1 Day
    ATT&CK tactics: Impact (TA0040)
    ATT&CK techniques: Endpoint Denial of Service: Service Exhaustion Flood (T1499.002) Network Denial of Service (T1498)
    Required data: XDR Agent
    Attacker's goals: Attempt to perform a denial-of-service attack by network exhaustion.
    Investigative actions: Check if the ICMP message to broadcast was used for a legitimate reason. If not, check for denial-of-service impact on the subnet.