Restricted Software Access By SRP — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: high. Source dates: 2023-01-12 / not supplied.

{
  "product": "windows",
  "service": "application"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: fe9eb0fb58baccd1176b89b335b014dabc617899de6c9802dbd84fbe2a5cd900

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: Restricted Software Access By SRP
id: b4c8da4a-1c12-46b0-8a2b-0a8521d03442
status: test
description: Detects restricted access to applications by the Software Restriction Policies (SRP) policy
references:
    - https://learn.microsoft.com/en-us/windows-server/identity/software-restriction-policies/software-restriction-policies
    - https://github.com/nasbench/EVTX-ETW-Resources/blob/7a806a148b3d9d381193d4a80356016e6e8b1ee8/ETWEventsList/CSV/Windows11/22H2/W11_22H2_Pro_20220920_22621.382/Providers/Microsoft-Windows-AppXDeployment-Server.csv
author: frack113
date: 2023-01-12
tags:
    - attack.lateral-movement
    - attack.execution
    - attack.t1072
logsource:
    product: windows
    service: application
detection:
    selection:
        Provider_Name: 'Microsoft-Windows-SoftwareRestrictionPolicies'
        EventID:
            - 865 # Access to %1 has been restricted by your Administrator by the default software restriction policy level
            - 866 # Access to %1 has been restricted by your Administrator by location with policy rule %2 placed on path %3.
            - 867 # Access to %1 has been restricted by your Administrator by software publisher policy.
            - 868 # Access to %1 has been restricted by your Administrator by policy rule %2.
            - 882 # Access to %1 has been restricted by your Administrator by policy rule %2.
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://learn.microsoft.com/en-us/windows-server/identity/software-restriction-policies/software-restriction-policies
• https://github.com/nasbench/EVTX-ETW-Resources/blob/7a806a148b3d9d381193d4a80356016e6e8b1ee8/ETWEventsList/CSV/Windows11/22H2/W11_22H2_Pro_20220920_22621.382/Providers/Microsoft-Windows-AppXDeployment-Server.csv