empire_powershell_uac_bypass

rule empire_powershell_uac_bypass {
 meta:
    author = "Ecco"
    description = "Detects some Empire PowerShell UAC bypass methods  License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
    reference = "https://tdm.socprime.com/tdm/info/XcuVOk5Dd9JM"
    version = "0.01"
    created = "2019/08/30"
    category = "process_creation"
    product = "windows"
    mitre = "defense_evasion, privilege_escalation, t1088, car.2019-04-001"

  events:
((re.regex($selection.target.process.command_line, `.* -NoP -NonI -w Hidden -c $x=$\(\(gp HKCU:Software\\\\Microsoft\\\\Windows Update\)\.Update\).*`) or re.regex($selection.target.process.command_line, `.* -NoP -NonI -c $x=$\(\(gp HKCU:Software\\\\Microsoft\\\\Windows Update\)\.Update\);.*`)) and ($selection.metadata.product_event_type = "4688" or $selection.metadata.product_event_type = "1"))

  condition:
    $selection
}