In-Memory Security Package (SSP) Loaded Into LSA - Native (via security)
- Product
- windows
- Service
- security
- Author
- HuntRule
- Published
- 2026-11-08
- Updated
- 2026-11-08
ATT&CK techniques
Persistence → Priv EscRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects loads a malicious SSP (Security Support Provider) into the LSA process. Note that this rule will not work with "in memory" SSP injection (Mimikatz) as no event will be triggered.
Reporting behind it
- attack.mitre.orghttps://attack.mitre.org/techniques/T1547/008/
- twitter.comhttps://twitter.com/JohnLaTwC/status/1417106953881497602?s=09
- blog.xpnsec.comhttps://blog.xpnsec.com/exploring-mimikatz-part-2/
- docs.microsoft.comhttps://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4622
- docs.microsoft.comhttps://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/dn408187(v=ws.11)?redirectedfrom=MSDN
- pentestlab.bloghttps://pentestlab.blog/2019/10/21/persistence-security-support-provider/
- ired.teamhttps://www.ired.team/offensive-security/credential-access-and-credential-dumping/intercepting-logon-credentials-via-custom-security-support-provider-and-authentication-package
- securityintelligence.comhttps://securityintelligence.com/posts/hunting-evidence-dll-side-loading-powershell-sysmon/
- medium.comhttps://medium.com/threatpunter/detecting-adversary-tradecraft-with-image-load-event-logging-and-eql-8de93338c16
- github.comhttps://github.com/S1ckB0y1337/Active-Directory-Exploitation-Cheat-Sheet#custom-ssp
- sentinelone.comhttps://www.sentinelone.com/blog/how-attackers-exploit-security-support-provider-ssp-for-credential-dumping/
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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