T1547.002sub-technique of T1547 Boot or Logon Autostart Execution

Authentication Package

Windowsnothing on this site yetT1547.002 on attack.mitre.org

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.
MITRE ATT&CK 19.2, retrieved 2026-09-12

If this is happening now

Checklists and playbooks to open while the alert is still live.

Playbook for this stage

Suspicious execution on an endpoint

An EDR alert, an unexplained process, or a user reporting something odd.

Playbook for this stage

Cloud account compromise

Impossible travel, an unrecognised inbox rule, or a reported invoice-fraud attempt.

how MITRE says to see it

Detect LSA Authentication Package Persistence via Registry and LSASS DLL Load

Registry modification of the LSA Authentication Packages key followed by LSASS loading a non-standard or unsigned DLL. This includes unusual write access to `HKLM\SYSTEM\CurrentControlSet\Control\Lsa`, especially during non-installation timeframes.

what reduces it

M1025 Privileged Process Integrity. Windows 8.1, Windows Server 2012 R2, and later versions, may make LSA run as a Protected Process Light (PPL) by setting the Registry key `HKLM\SYSTEM\CurrentControlSet\Control\Lsa\RunAsPPL`, which requires all DLLs loaded by LSA to be signed by Microsoft.

the rest of T1547

T1547.001 Registry Run Keys / Startup Folder · 8 on this site
T1547.003 Time Providers · not covered yet
T1547.004 Winlogon Helper DLL · not covered yet
T1547.005 Security Support Provider · not covered yet
T1547.006 Kernel Modules and Extensions · not covered yet
T1547.007 Re-opened Applications · not covered yet
T1547.008 LSASS Driver · not covered yet
T1547.009 Shortcut Modification · not covered yet
T1547.010 Port Monitors · not covered yet
T1547.012 Print Processors · not covered yet
T1547.013 XDG Autostart Entries · not covered yet
T1547.014 Active Setup · not covered yet
T1547.015 Login Items · not covered yet

The description, detection analytics and mitigations are reproduced from MITRE ATT&CK, version 19.2, under its terms of use. The checklists, hunts, labs and everything else linked here are this site’s.