Elastic low stable eql
Windows Account or Group Discovery
This rule identifies the execution of commands that enumerates account or group information. Adversaries may use built-in applications to get a listing of local system or domain accounts and groups.
Detection Logic
process where host.os.type == "windows" and event.type == "start" and
(
(
(
(process.name : "net.exe" or process.pe.original_file_name == "net.exe") or
(
(process.name : "net1.exe" or process.pe.original_file_name == "net1.exe") and
not process.parent.name : "net.exe"
)
) and process.args : ("accounts", "group", "user", "localgroup") and not process.args : "/add"
) or
(process.name:("dsquery.exe", "dsget.exe") and process.args:("*members*", "user")) or
(process.name:"dsquery.exe" and process.args:"*filter*") or
process.name:("quser.exe", "qwinsta.exe", "PsGetSID.exe", "PsLoggedOn.exe", "LogonSessions.exe", "whoami.exe") or
(
process.name: "cmd.exe" and
(
process.args : "echo" and process.args : (
"%username%", "%userdomain%", "%userdnsdomain%",
"%userdomain_roamingprofile%", "%userprofile%",
"%homepath%", "%localappdata%", "%appdata%"
) or
process.args : "set"
)
)
) and not process.parent.args: "C:\\Program Files (x86)\\Microsoft Intune Management Extension\\Content\\DetectionScripts\\*.ps1"
and not process.parent.name : "LTSVC.exe" and not user.id : "S-1-5-18" Field Validations
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