[metadata]
creation_date = "2021/10/18"
maturity = "production"
updated_date = "2022/04/13"

[rule]
author = ["Elastic"]
description = """
Identifies an attempt to reset an account password remotely. Adversaries may manipulate account passwords to maintain
access or evade password duration policies and preserve compromised credentials.
"""
false_positives = ["Legitimate remote account administration."]
from = "now-9m"
index = ["winlogbeat-*", "logs-system.*"]
language = "eql"
license = "Elastic License v2"
name = "Account Password Reset Remotely"
references = [
    "https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4724",
    "https://stealthbits.com/blog/manipulating-user-passwords-with-mimikatz/",
    "https://github.com/sbousseaden/EVTX-ATTACK-SAMPLES/blob/master/Credential%20Access/remote_pwd_reset_rpc_mimikatz_postzerologon_target_DC.evtx",
]
risk_score = 47
rule_id = "2820c9c2-bcd7-4d6e-9eba-faf3891ba450"
severity = "medium"
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Persistence"]
type = "eql"

query = '''
sequence by host.id with maxspan=5m
  [authentication where event.action == "logged-in" and
    /* event 4624 need to be logged */
    winlog.logon.type : "Network" and event.outcome == "success" and source.ip != null and
    source.ip != "127.0.0.1" and source.ip != "::1"] by winlog.event_data.TargetLogonId
   /* event 4724 need to be logged */
  [iam where event.action == "reset-password"] by winlog.event_data.SubjectLogonId
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1098"
reference = "https://attack.mitre.org/techniques/T1098/"
name = "Account Manipulation"


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