Potential Persistence Via LSA Extensions
Detects when an attacker modifies the "REG_MULTI_SZ" value named "Extensions" to include a custom DLL to achieve persistence via lsass. The "Extensions" list contains filenames of DLLs being automatically loaded by…
Description
Detects when an attacker modifies the "REG_MULTI_SZ" value named "Extensions" to include a custom DLL to achieve persistence via lsass. The "Extensions" list contains filenames of DLLs being automatically loaded by lsass.exe. Each DLL has its InitializeLsaExtension() method called after loading.
Detection logic
Detection requirements
- Log source product
- windows
- Log source category
- registry_set
Known benign triggers
- Unlikely
MITRE ATT&CK mappings
Not mapped to ATT&CK.
References
| Reference | Cited by |
|---|---|
| persistence-info.github.io/Data/lsaaextension.html | Only this detection cites it |
| twitter.com/0gtweet/status/1476286368385019906 | Only this detection cites it |
From the source
- At source
- Open at source
- Upstream identifier
- 41f6531d-af6e-4c6e-918f-b946f2b85a36
- Tagged by the source as
- attack.persistence
Licence
- Published under
- Detection Rule License 1.1Read the licence
- Attribution
- Required
Authorship
- Published
- Aug 26, 2026
- Version
- 1