Sigma rule: MITRE BZAR Indicators for Execution

Rule

Title

MITRE BZAR Indicators for Execution

Status

test

Level

medium

Author

@neu5ron, SOC Prime

Date

2020-03-19

Modified

2021-11-27

File

rules/network/zeek/zeek_dce_rpc_mitre_bzar_execution.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

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

Log source

product

zeek

service

dce_rpc

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*

False positives (as the rule lists them)

• Windows administrator tasks or troubleshooting
• Windows management scripts or software

Tags

• attack.privilege-escalation
• attack.persistence
• attack.execution
• attack.t1047
• attack.t1053.002
• attack.t1569.002

MITRE ATT&CK ids this rule names

• T1047
• T1053.002
• T1569.002

References

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

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/network/zeek/zeek_dce_rpc_mitre_bzar_execution.yml