[metadata]
creation_date = "2020/12/14"
maturity = "production"
updated_date = "2020/12/15"

[rule]
author = ["Elastic"]
description = """
Identifies a sign-in using the Azure Active Directory PowerShell module. PowerShell for Azure Active Directory allows
for managing settings from the command line, which is intended for users who are members of an admin role.
"""
false_positives = [
    """
    Sign-ins using PowerShell may be done by a system or network administrator. Verify whether the username, hostname,
    and/or resource name should be signing into your environment. Sign-ins from unfamiliar users or hosts should be
    investigated. If known behavior is causing false positives, it can be exempted from the rule.
    """,
]
from = "now-25m"
index = ["filebeat-*", "logs-azure*"]
language = "kuery"
license = "Elastic License"
name = "Azure Active Directory PowerShell Sign-in"
note = "The Azure Fleet Integration or Filebeat module must be enabled to use this rule."
references = [
    "https://msrc-blog.microsoft.com/2020/12/13/customer-guidance-on-recent-nation-state-cyber-attacks/",
    "https://docs.microsoft.com/en-us/microsoft-365/enterprise/connect-to-microsoft-365-powershell?view=o365-worldwide",
]
risk_score = 21
rule_id = "a605c51a-73ad-406d-bf3a-f24cc41d5c97"
severity = "low"
tags = ["Elastic", "Cloud", "Azure", "Continuous Monitoring", "SecOps", "Identity and Access"]
type = "query"

query = '''
event.dataset:azure.signinlogs and
  azure.signinlogs.properties.app_display_name:"Azure Active Directory PowerShell" and
  azure.signinlogs.properties.token_issuer_type:AzureAD and event.outcome:(success or Success)
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1078"
name = "Valid Accounts"
reference = "https://attack.mitre.org/techniques/T1078/"
[[rule.threat.technique.subtechnique]]
id = "T1078.004"
name = "Cloud Accounts"
reference = "https://attack.mitre.org/techniques/T1078/004/"


[rule.threat.tactic]
id = "TA0001"
name = "Initial Access"
reference = "https://attack.mitre.org/tactics/TA0001/"
