Windows Account or Group Discovery
editWindows Account or Group Discovery
editThis 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.
Rule type: eql
Rule indices:
- logs-endpoint.events.process-*
Severity: low
Risk score: 21
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References: None
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Discovery
- Rule Type: BBR
- Data Source: Elastic Defend
Version: 5
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editprocess 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"
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Permission Groups Discovery
- ID: T1069
- Reference URL: https://attack.mitre.org/techniques/T1069/
-
Sub-technique:
- Name: Local Groups
- ID: T1069.001
- Reference URL: https://attack.mitre.org/techniques/T1069/001/
-
Sub-technique:
- Name: Domain Groups
- ID: T1069.002
- Reference URL: https://attack.mitre.org/techniques/T1069/002/
-
Technique:
- Name: Account Discovery
- ID: T1087
- Reference URL: https://attack.mitre.org/techniques/T1087/
-
Sub-technique:
- Name: Local Account
- ID: T1087.001
- Reference URL: https://attack.mitre.org/techniques/T1087/001/
-
Sub-technique:
- Name: Domain Account
- ID: T1087.002
- Reference URL: https://attack.mitre.org/techniques/T1087/002/
-
Technique:
- Name: Password Policy Discovery
- ID: T1201
- Reference URL: https://attack.mitre.org/techniques/T1201/