The SIEM app is now a part of the Elastic Security solution.
Click
here to view the current documentation.
IMPORTANT: No additional bug fixes or documentation updates will be released for this version.
IMPORTANT: No additional bug fixes or documentation updates will be released for this version.
Execution via Regsvcs/Regasm
editExecution via Regsvcs/Regasm
editRegSvcs.exe and RegAsm.exe are Windows command line utilities that are used
to register .NET Component Object Model (COM) assemblies. Adversaries can use
RegSvcs.exe and RegAsm.exe to proxy execution of code through a trusted
Windows utility.
Rule type: query
Rule indices:
- winlogbeat-*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time)
Maximum signals per execution: 100
Tags:
- Elastic
- Windows
Version: 1
Added (Elastic Stack release): 7.7.0
Rule query
editprocess.name:(RegAsm.exe or RegSvcs.exe) and event.action:"Process Create (rule: ProcessCreate)"
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Regsvcs/Regasm
- ID: T1121
- Reference URL: https://attack.mitre.org/techniques/T1121/
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Regsvcs/Regasm
- ID: T1121
- Reference URL: https://attack.mitre.org/techniques/T1121/