IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
« KRBTGT Delegation Backdoor A scheduled task was created »
Elastic Docs ›Elastic Security Solution [8.5] ›Downloadable rule update v8.5.1

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.*
  • logs-windows.*

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:

  • Elastic
  • Host
  • Windows
  • Threat Detection
  • Persistence

Version: 103

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

edit
sequence by winlog.computer_name 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" 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

« KRBTGT Delegation Backdoor A scheduled task was created »