title: Authentication Package (T1547.002)
id: df00tech-t1547-002
status: experimental
description: "Adversaries may abuse authentication packages to execute DLLs when the system boots. Windows authentication package DLLs are loaded by the Local Security Authority (LSA) process at system start. They provide support for multiple logon processes and multiple security protocols to the operating system. Adversaries can use the autostart mechanism provided by LSA authentication packages for persistence by placing a reference to a binary in the Windows Registry location HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa\\ with the key value of 'Authentication Packages'=<target binary>. The binary will then be executed by the system when the authentication packages are loaded."
references:
  - https://attack.mitre.org/techniques/T1547/002/
  - https://df00tech.com/detections/T1547.002
author: df00tech
date: 2026/04/20
tags:
  - attack.t1547.002
# NOTE: logsource is auto-derived and may need adjustment for your environment
logsource:
  product: windows
detection:
  # This detection logic could not be auto-translated; see the KQL/SPL query on df00tech.
  selection:
    EventID: '*'
  condition: selection
falsepositives:
  - Windows OS upgrades or cumulative updates that modify LSA authentication package configuration
  - "Enterprise security products (smart card middleware, third-party authentication providers) that register legitimate authentication packages"
  - Domain controller role installation or Active Directory Federation Services configuration
level: critical