Detectionmediumtest

MITRE BZAR Indicators for Execution

Windows DCE-RPC functions which indicate an execution techniques on the remote system. All credit for the Zeek mapping of the suspicious endpoint/operation field goes to MITRE

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@neu5ron, SOC PrimeCreated Thu Mar 19Updated Sat Nov 27b640c0b8-87f8-4daa-aef8-95a24261dd1dnetwork

Log Source

Zeek (Bro)dce_rpc

ProductZeek (Bro)← raw: zeek

Servicedce_rpc← raw: dce_rpc

Detection Logic

detection:
    op1:
        endpoint: 'JobAdd'
        operation: 'atsvc'
    op2:
        endpoint: 'ITaskSchedulerService'
        operation: 'SchRpcEnableTask'
    op3:
        endpoint: 'ITaskSchedulerService'
        operation: 'SchRpcRegisterTask'
    op4:
        endpoint: 'ITaskSchedulerService'
        operation: 'SchRpcRun'
    op5:
        endpoint: 'IWbemServices'
        operation: 'ExecMethod'
    op6:
        endpoint: 'IWbemServices'
        operation: 'ExecMethodAsync'
    op7:
        endpoint: 'svcctl'
        operation: 'CreateServiceA'
    op8:
        endpoint: 'svcctl'
        operation: 'CreateServiceW'
    op9:
        endpoint: 'svcctl'
        operation: 'StartServiceA'
    op10:
        endpoint: 'svcctl'
        operation: 'StartServiceW'
    condition: 1 of op*