double space before " -Option"
Author: zmliloCreated Sep 17, 2026Updated Sep 17, 2026
LabelsFalse-Positive
Rule UUID
96cd126d-f970-49c4-848a-da3a09f55c55
Example EventLog
"activity_id": "{8877f58f-387a-0002-b48e-87887a38dd01}",
"event_id": "4104",
"event_data": {
"ScriptBlockText": "Set-Alias -Name ncim -Value New-CimInstance -Option ReadOnly, AllScope -ErrorAction SilentlyContinue",
"MessageTotal": "1",
"ScriptBlockId": "c3850902-4e6c-4271-9cbd-9fd5dbc3536d",
"MessageNumber": "1"
},
Description
for example the rule contains the following pattern: "Set-Alias -Name ncim -Value New-CimInstance -Option ReadOnly, AllScope -ErrorAction SilentlyContinue"
but the windows send the following log: "Set-Alias -Name ncim -Value New-CimInstance -Option ReadOnly, AllScope -ErrorAction SilentlyContinue"
the differences only one +space in the log...
Source: SigmaHQ/sigma