A security package has been loaded by the Local Security Authority

// EVENT DEFINITION:

A security package (SSP/AP) was loaded by LSASS.

// DETAILED TELEMETRY & CONTEXT:

Event ID 4622 is generated whenever a new Security Support Provider (SSP) or Authentication Package DLL is loaded into `lsass.exe`. While core packages (`Kerberos`, `NTLM`, `Schannel`, `WDigest`) load at boot, malicious actors inject custom SSP DLLs into LSASS memory to intercept and harvest plaintext credentials of every user logging onto the machine.

[ ! ]Failure Reason / Root Cause Analysis

Normal operating system boot loading core providers, or attacker credential dumping via malicious SSP injection.

Operational Metadata & Applicability

Log Category:System

Audit Type Classification:Success Audit

Supported Operating Systems:Windows Server 2016, 2019, 2022 / Windows Client 10, 11 (Enterprise / Pro)

Threat Hunting Keywords:

ssp loadedlsass injectioncredential dumpingsecurity packageauthentication packagessp dll

MITRE ATT&CK Framework Alignment

T1003.005

OS Credential Dumping: Security Support ProviderTactic: Credential Access

T1547.005

Boot or Logon Autostart Execution: Security Support ProviderTactic: Persistence

Mitigation Playbook & Recommended SOC Actions

•Alert on any Event ID 4622 occurring post-boot or specifying non-Microsoft `Security Package Name` DLL paths.
•Inspect the registry keys under `HKLM\SYSTEM\CurrentControlSet\Control\Lsa\Security Packages`.

Representative Windows Event XML Schema

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
    <EventID>4622</EventID>
    <Version>0</Version>
    <Level>0</Level>
    <Task>12544</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8020000000000000</Keywords>
    <TimeCreated SystemTime="2026-07-17T09:54:44.259Z" />
    <EventRecordID>1048576</EventRecordID>
    <Correlation />
    <Execution ProcessID="612" ThreadID="1024" />
    <Channel>Security</Channel>
    <Computer>DC01.enterprise.internal</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="SubjectUserSid">S-1-5-18</Data>
    <Data Name="SubjectUserName">SYSTEM</Data>
    <Data Name="SubjectDomainName">NT AUTHORITY</Data>
    <Data Name="SubjectLogonId">0x3e7</Data>
    <!-- Event telemetry fields specific to A security package has been loaded by the Local Security Authority -->
  </EventData>
</Event>

Correlated / Related Security Event IDs

Need to export or view this event without styling/layout wrappers?

Open Simple Plain Detail Page →

ADVERTISEMENT / SPONSORED RESERVATION (728x90)