MITRE ATT&CK Technique
Description
The Windows security subsystem is a set of components that manage and enforce the security policy for a computer or domain. The Local Security Authority (LSA) is the main component responsible for local security policy and user authentication. The LSA includes multiple dynamic link libraries (DLLs) associated with various other security functions, all of which run in the context of the LSA Subsystem Service (LSASS) lsass.exe process. (Citation: Microsoft Security Subsystem) Adversaries may target lsass.exe drivers to obtain execution and/or persistence. By either replacing or adding illegitimate drivers (e.g., [DLL Side-Loading](https://attack.mitre.org/techniques/T1073) or [DLL Search Order Hijacking](https://attack.mitre.org/techniques/T1038)), an adversary can achieve arbitrary code execution triggered by continuous LSA operations.
Supported Platforms
Created
April 29, 2026
Last Updated
April 29, 2026
STIX Data
{'created': '2018-01-16T16:13:52.465Z',
'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
'description': 'The Windows security subsystem is a set of components that '
'manage and enforce the security policy for a computer or '
'domain. The Local Security Authority (LSA) is the main '
'component responsible for local security policy and user '
'authentication. The LSA includes multiple dynamic link '
'libraries (DLLs) associated with various other security '
'functions, all of which run in the context of the LSA '
'Subsystem Service (LSASS) lsass.exe process. (Citation: '
'Microsoft Security Subsystem)\n'
'\n'
'Adversaries may target lsass.exe drivers to obtain execution '
'and/or persistence. By either replacing or adding '
'illegitimate drivers (e.g., [DLL '
'Side-Loading](https://attack.mitre.org/techniques/T1073) or '
'[DLL Search Order '
'Hijacking](https://attack.mitre.org/techniques/T1038)), an '
'adversary can achieve arbitrary code execution triggered by '
'continuous LSA operations.',
'external_references': [{'external_id': 'T1177',
'source_name': 'mitre-attack',
'url': 'https://attack.mitre.org/techniques/T1177'},
{'description': 'Microsoft. (n.d.). Security '
'Subsystem Architecture. Retrieved '
'November 27, 2017.',
'source_name': 'Microsoft Security Subsystem',
'url': 'https://technet.microsoft.com/library/cc961760.aspx'},
{'description': 'Microsoft. (2014, March 12). '
'Configuring Additional LSA '
'Protection. Retrieved November 27, '
'2017.',
'source_name': 'Microsoft LSA Protection Mar 2014',
'url': 'https://technet.microsoft.com/library/dn408187.aspx'},
{'description': 'Russinovich, M. (2016, January 4). '
'Autoruns for Windows v13.51. '
'Retrieved June 6, 2016.',
'source_name': 'TechNet Autoruns',
'url': 'https://technet.microsoft.com/en-us/sysinternals/bb963902'},
{'description': 'Microsoft. (n.d.). Dynamic-Link '
'Library Security. Retrieved November '
'27, 2017.',
'source_name': 'Microsoft DLL Security',
'url': 'https://msdn.microsoft.com/library/windows/desktop/ff919712.aspx'}],
'id': 'attack-pattern--6e6845c2-347a-4a6f-a2d1-b74a18ebd352',
'kill_chain_phases': [{'kill_chain_name': 'mitre-attack',
'phase_name': 'execution'},
{'kill_chain_name': 'mitre-attack',
'phase_name': 'persistence'}],
'modified': '2025-10-24T17:48:55.803Z',
'name': 'LSASS Driver',
'object_marking_refs': ['marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168'],
'revoked': True,
'spec_version': '2.1',
'type': 'attack-pattern',
'x_mitre_attack_spec_version': '3.2.0',
'x_mitre_contributors': ['Vincent Le Toux'],
'x_mitre_deprecated': False,
'x_mitre_detection': '',
'x_mitre_domains': ['enterprise-attack'],
'x_mitre_is_subtechnique': False,
'x_mitre_modified_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
'x_mitre_platforms': ['Windows'],
'x_mitre_version': '1.1'}