[metadata]
creation_date = "2022/10/13"
integration = ["endpoint", "windows"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/03/06"

[rule]
author = ["Elastic"]
description = """
Identifies the creation or modification of a PowerShell profile. PowerShell profile is a script that is executed when
PowerShell starts to customize the user environment, which can be abused by attackers to persist in a environment where
PowerShell is common.
"""
from = "now-9m"
index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*", "endgame-*"]
language = "eql"
license = "Elastic License v2"
name = "Persistence via PowerShell profile"
references = [
    "https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_profiles",
    "https://www.welivesecurity.com/2019/05/29/turla-powershell-usage/",
]
risk_score = 47
rule_id = "5cf6397e-eb91-4f31-8951-9f0eaa755a31"
severity = "medium"
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Persistence", "Elastic Endgame"]
timestamp_override = "event.ingested"
type = "eql"

query = '''
file where host.os.type == "windows" and event.type != "deletion" and
  file.path : ("?:\\Users\\*\\Documents\\WindowsPowerShell\\*",
               "?:\\Users\\*\\Documents\\PowerShell\\*",
               "?:\\Windows\\System32\\WindowsPowerShell\\*") and
  file.name : ("profile.ps1", "Microsoft.Powershell_profile.ps1")
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1546"
name = "Event Triggered Execution"
reference = "https://attack.mitre.org/techniques/T1546/"
[[rule.threat.technique.subtechnique]]
id = "T1546.013"
name = "PowerShell Profile"
reference = "https://attack.mitre.org/techniques/T1546/013/"



[rule.threat.tactic]
id = "TA0003"
name = "Persistence"
reference = "https://attack.mitre.org/tactics/TA0003/"