sigmamediumHunting

MITRE BZAR Indicators for Persistence

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

MITRE ATT&CK

T1547.004

privilege-escalationpersistence

Detection Query

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*

Author

@neu5ron, SOC Prime

Created

2020-03-19

Data Sources

zeekdce_rpc

Platforms

zeek

References

https://github.com/mitre-attack/bzar#indicators-for-attck-persistence

Tags

attack.privilege-escalationattack.persistenceattack.t1547.004

Raw Content

title: MITRE BZAR Indicators for Persistence
id: 53389db6-ba46-48e3-a94c-e0f2cefe1583
status: test
description: 'Windows DCE-RPC functions which indicate a persistence techniques on the remote system. All credit for the Zeek mapping of the suspicious endpoint/operation field goes to MITRE.'
references:
    - https://github.com/mitre-attack/bzar#indicators-for-attck-persistence
author: '@neu5ron, SOC Prime'
date: 2020-03-19
modified: 2021-11-27
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:
    - Windows administrator tasks or troubleshooting
    - Windows management scripts or software
level: medium