IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
« Account Discovery Command via SYSTEM Account Account or Group Discovery via Built-In Tools »
Elastic Docs ›Elastic Security Solution [8.15] ›Detections and alerts ›Prebuilt rule reference

Account Password Reset Remotely

edit

Account Password Reset Remotely

edit

Identifies an attempt to reset a potentially privileged account password remotely. Adversaries may manipulate account passwords to maintain access or evade password duration policies and preserve compromised credentials.

Rule type: eql

Rule indices:

  • winlogbeat-*
  • logs-system.security*
  • logs-windows.forwarded*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Domain: Endpoint
  • OS: Windows
  • Use Case: Threat Detection
  • Tactic: Persistence
  • Tactic: Impact
  • Data Source: System

Version: 216

Rule authors:

  • Elastic

Rule license: Elastic License v2

Investigation guide

edit

Performance

This rule may cause medium to high performance impact due to logic scoping all remote Windows logon activity.

Rule query

edit
sequence by winlog.computer_name with maxspan=1m
  [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" and
    not winlog.event_data.TargetUserName : ("svc*", "PIM_*", "_*_", "*-*-*", "*$")] by winlog.event_data.TargetLogonId
   /* event 4724 need to be logged */
  [iam where event.action == "reset-password" and
   (
    /*
       This rule is very noisy if not scoped to privileged accounts, duplicate the
       rule and add your own naming convention and accounts of interest here.
     */
    winlog.event_data.TargetUserName: ("*Admin*", "*super*", "*SVC*", "*DC0*", "*service*", "*DMZ*", "*ADM*") or
    winlog.event_data.TargetSid : ("S-1-5-21-*-500", "S-1-12-1-*-500")
    )
  ] by winlog.event_data.SubjectLogonId

Framework: MITRE ATT&CKTM

« Account Discovery Command via SYSTEM Account Account or Group Discovery via Built-In Tools »