Mika Ayenson
100 lines
3.1 KiB
TOML
100 lines
3.1 KiB
TOML
[metadata]
|
|
creation_date = "2020/11/27"
|
|
integration = ["endpoint", "windows"]
|
|
maturity = "production"
|
|
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
|
|
min_stack_version = "8.3.0"
|
|
updated_date = "2024/04/08"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies use of the built-in Windows script interpreters (cscript.exe or wscript.exe) being used to execute a process
|
|
via Windows Management Instrumentation (WMI). This may be indicative of malicious activity.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["winlogbeat-*", "logs-endpoint.events.process-*", "logs-endpoint.events.library-*", "logs-windows.sysmon_operational-*", "endgame-*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Windows Script Interpreter Executing Process via WMI"
|
|
risk_score = 47
|
|
rule_id = "b64b183e-1a76-422d-9179-7b389513e74d"
|
|
severity = "medium"
|
|
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Initial Access", "Tactic: Execution", "Data Source: Elastic Endgame", "Data Source: Elastic Defend", "Data Source: Sysmon"]
|
|
type = "eql"
|
|
|
|
query = '''
|
|
sequence by host.id with maxspan = 5s
|
|
[any where host.os.type == "windows" and
|
|
(event.category : ("library", "driver") or (event.category == "process" and event.action : "Image loaded*")) and
|
|
(?dll.name : "wmiutils.dll" or file.name : "wmiutils.dll") and process.name : ("wscript.exe", "cscript.exe")]
|
|
[process where host.os.type == "windows" and event.type == "start" and
|
|
process.parent.name : "wmiprvse.exe" and
|
|
user.domain != "NT AUTHORITY" and
|
|
(process.pe.original_file_name :
|
|
(
|
|
"cscript.exe",
|
|
"wscript.exe",
|
|
"PowerShell.EXE",
|
|
"Cmd.Exe",
|
|
"MSHTA.EXE",
|
|
"RUNDLL32.EXE",
|
|
"REGSVR32.EXE",
|
|
"MSBuild.exe",
|
|
"InstallUtil.exe",
|
|
"RegAsm.exe",
|
|
"RegSvcs.exe",
|
|
"msxsl.exe",
|
|
"CONTROL.EXE",
|
|
"EXPLORER.EXE",
|
|
"Microsoft.Workflow.Compiler.exe",
|
|
"msiexec.exe"
|
|
) or
|
|
process.executable : ("C:\\Users\\*.exe", "C:\\ProgramData\\*.exe")
|
|
)
|
|
]
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1566"
|
|
name = "Phishing"
|
|
reference = "https://attack.mitre.org/techniques/T1566/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1566.001"
|
|
name = "Spearphishing Attachment"
|
|
reference = "https://attack.mitre.org/techniques/T1566/001/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0001"
|
|
name = "Initial Access"
|
|
reference = "https://attack.mitre.org/tactics/TA0001/"
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1059"
|
|
name = "Command and Scripting Interpreter"
|
|
reference = "https://attack.mitre.org/techniques/T1059/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1059.005"
|
|
name = "Visual Basic"
|
|
reference = "https://attack.mitre.org/techniques/T1059/005/"
|
|
|
|
[[rule.threat.technique]]
|
|
id = "T1047"
|
|
name = "Windows Management Instrumentation"
|
|
reference = "https://attack.mitre.org/techniques/T1047/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0002"
|
|
name = "Execution"
|
|
reference = "https://attack.mitre.org/tactics/TA0002/"
|
|
|