Suspicious LSASS Access via MalSecLogon
Identifies suspicious access to LSASS handle from a call trace pointing to seclogon.dll and with a suspicious access rights value. This may indicate an attempt to leak an LSASS handle via abusing the Secondary Logon…
Description
Identifies suspicious access to LSASS handle from a call trace pointing to seclogon.dll and with a suspicious access rights value. This may indicate an attempt to leak an LSASS handle via abusing the Secondary Logon service in preparation for credential access.
Detection logic
Its licence does not clear it for publishing here
Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.
Detection requirements
- Platform
- LinuxmacOSWindows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
- Log source category
- event_index
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| splintercod3.blogspot.com/p/the-hidden-side-of-seclogon-part-3.html | 2from 2 sources |
From the source
- At source
- Open at source
- Upstream identifier
- 7ba58110-ae13-439b-8192-357b0fcfa9d7
- Tagged by the source as
- Data Source: SysmonDomain: EndpointNoise: LowOS: WindowsPerformance: NormalPlatform: WindowsResources: Investigation GuideRule Type: Event Correlation (EQL)Tactic: Credential AccessUse Case: Threat Detection
Licence
- Published under
- Elastic License 2.0Read the licence
- Attribution
- Required
Authorship
- Written by
- Published
- Sep 20, 2026
- Version
- 3