Remote Registry Lateral Movement — Sigma Rule

Rule metadata and linked tags

Author: Sagie Dulce, Dekel Paz. Source status: test; severity: high. Source dates: 2022-01-01 / not supplied.

{
  "product": "rpc_firewall",
  "category": "application",
  "definition": "Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:338cd001-2244-31f1-aaaa-900038001003\""
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 69aa52a7ef4a7e41d47fdb072460119730d7b2769dc520ac8c76251494aa082d

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: Remote Registry Lateral Movement
id: 35c55673-84ca-4e99-8d09-e334f3c29539
status: test
description: Detects remote RPC calls to modify the registry and possible execute code
references:
    - https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-rrp/0fa3191d-bb79-490a-81bd-54c2601b7a78
    - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-RRP.md
    - https://github.com/zeronetworks/rpcfirewall
    - https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/
author: Sagie Dulce, Dekel Paz
date: 2022-01-01
tags:
    - attack.lateral-movement
    - attack.defense-impairment
    - attack.t1112
    - attack.persistence
logsource:
    product: rpc_firewall
    category: application
    definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:338cd001-2244-31f1-aaaa-900038001003"'
detection:
    selection:
        EventLog: RPCFW
        EventID: 3
        InterfaceUuid: 338cd001-2244-31f1-aaaa-900038001003
        OpNum:
            - 6
            - 7
            - 8
            - 13
            - 18
            - 19
            - 21
            - 22
            - 23
            - 35
    condition: selection
falsepositives:
    - Remote administration of registry values
level: high

Original YAML and metadata in JSON

False positives

• Remote administration of registry values

Source references

• https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-rrp/0fa3191d-bb79-490a-81bd-54c2601b7a78
• https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-RRP.md
• https://github.com/zeronetworks/rpcfirewall
• https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/