Remote Registry Recon

calendar Jun 4, 2025 · attack.discovery  ·
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Detects remote RPC calls to collect information

Sigma rule (View on GitHub)

 1title: Remote Registry Recon
 2id: d8ffe17e-04be-4886-beb9-c1dd1944b9a8
 3status: test
 4description: Detects remote RPC calls to collect information
 5references:
 6    - https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-rrp/0fa3191d-bb79-490a-81bd-54c2601b7a78
 7    - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-RRP.md
 8    - https://github.com/zeronetworks/rpcfirewall
 9    - https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/
10author: Sagie Dulce, Dekel Paz
11date: 2022-01-01
12tags:
13    - attack.discovery
14logsource:
15    product: rpc_firewall
16    category: application
17    definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:338cd001-2244-31f1-aaaa-900038001003"'
18detection:
19    selection:
20        EventLog: RPCFW
21        EventID: 3
22        InterfaceUuid: 338cd001-2244-31f1-aaaa-900038001003
23    filter:
24        OpNum:
25            - 6
26            - 7
27            - 8
28            - 13
29            - 18
30            - 19
31            - 21
32            - 22
33            - 23
34            - 35
35    condition: selection and not filter
36falsepositives:
37    - Remote administration of registry values
38level: high

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