Restricted Software Access By SRP

calendar Dec 1, 2023 · attack.defense_evasion attack.t1072  ·
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Detects restricted access to applications by the Software Restriction Policies (SRP) policy

Sigma rule (View on GitHub)

 1title: Restricted Software Access By SRP
 2id: b4c8da4a-1c12-46b0-8a2b-0a8521d03442
 3status: test
 4description: Detects restricted access to applications by the Software Restriction Policies (SRP) policy
 5references:
 6    - https://learn.microsoft.com/en-us/windows-server/identity/software-restriction-policies/software-restriction-policies
 7    - 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
 8author: frack113
 9date: 2023/01/12
10tags:
11    - attack.defense_evasion
12    - attack.t1072
13logsource:
14    product: windows
15    service: application
16detection:
17    selection:
18        Provider_Name: 'Microsoft-Windows-SoftwareRestrictionPolicies'
19        EventID:
20            - 865 # Access to %1 has been restricted by your Administrator by the default software restriction policy level
21            - 866 # Access to %1 has been restricted by your Administrator by location with policy rule %2 placed on path %3.
22            - 867 # Access to %1 has been restricted by your Administrator by software publisher policy.
23            - 868 # Access to %1 has been restricted by your Administrator by policy rule %2.
24            - 882 # Access to %1 has been restricted by your Administrator by policy rule %2.
25    condition: selection
26falsepositives:
27    - Unknown
28level: high

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