1type: trigger
2name: sigmahq/proc_creation_win_powershell_remove_mppreference
3description: |
4  Detects attempts to remove Windows Defender configurations using the 'MpPreference' cmdlet
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && (evt.Parsed.CommandLine contains 'Remove-MpPreference' && (evt.Parsed.CommandLine contains '-ControlledFolderAccessProtectedFolders ' || evt.Parsed.CommandLine contains '-AttackSurfaceReductionRules_Ids ' || evt.Parsed.CommandLine contains '-AttackSurfaceReductionRules_Actions ' || evt.Parsed.CommandLine contains '-CheckForSignaturesBeforeRunningScan '))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14   - attack.t1562.001
15
16  label: "Tamper Windows Defender Remove-MpPreference"
17  behavior : "windows:audit"
18  remediation: false
19
20scope:
21  type: ParentProcessId
22  expression: evt.Parsed.ParentProcessId
23
24