Suspicious MITRE BZAR Indicators for Persistence (via dce_rpc)

title: Suspicious MITRE BZAR Indicators for Persistence (via dce_rpc)
id: 48e442c4-7c53-5079-bc4d-92004ec92b97
status: stable
description: 'This rule detects windows DCE-RPC functions which indicate a persistence methods on the remote system. All credit for the Zeek mapping of the anomalous endpoint/operation field goes to MITRE.'
references:
    - https://attack.mitre.org/techniques/T1547/004/
    - https://github.com/mitre-attack/bzar#indicators-for-attck-persistence
author: 'Huntrule Team'
date: 2026-04-10
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.t1547.004
logsource:
    product: zeek
    service: dce_rpc
detection:
    op1:
        endpoint: 'spoolss'
        operation: 'RpcAddMonitor'
    op2:
        endpoint: 'spoolss'
        operation: 'RpcAddPrintProcessor'
    op3:
        endpoint: 'IRemoteWinspool'
        operation: 'RpcAsyncAddMonitor'
    op4:
        endpoint: 'IRemoteWinspool'
        operation: 'RpcAsyncAddPrintProcessor'
    op5:
        endpoint: 'ISecLogon'
        operation: 'SeclCreateProcessWithLogonW'
    op6:
        endpoint: 'ISecLogon'
        operation: 'SeclCreateProcessWithLogonExW'
    condition: 1 of op*
falsepositives:
    - Unknown
level: medium