Registry Persistence via AppCert DLLedit
Detects attempts to maintain persistence by creating registry keys using AppCert DLLs. AppCert DLLs are loaded by every process using the common API functions to create processes.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Persistence
Version: 100 (version history)
Added (Elastic Stack release): 7.11.0
Last modified (Elastic Stack release): 8.5.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
registry where /* uncomment once stable length(bytes_written_string) > 0 and */ registry.path : "HKLM\\SYSTEM\\*ControlSet*\\Control\\Session Manager\\AppCertDLLs\\*"
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Event Triggered Execution
- ID: T1546
- Reference URL: https://attack.mitre.org/techniques/T1546/
Rule version historyedit
- Version 100 (8.5.0 release)
-
- Formatting only
- Version 7 (8.4.0 release)
-
- Formatting only
- Version 5 (8.2.0 release)
-
- Formatting only
- Version 4 (8.1.0 release)
-
-
Updated query, changed from:
registry where /* uncomment once stable length(bytes_written_string) > 0 and */ registry.path : "HKLM\\SYSTEM\\ControlSet*\\Control\\Session Manager\\AppCertDLLs\\*"
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- Version 3 (7.12.0 release)
-
- Formatting only
- Version 2 (7.11.2 release)
-
- Formatting only