Runonce.exe
Executes a Run Once Task that has been configured in the registry
Paths
C:\Windows\System32\runonce.exeC:\Windows\SysWOW64\runonce.exe
Commands
Execute
Executes a Run Once Task that has been configured in the registry.
Use case: Persistence, bypassing defensive counter measures
Privileges: Administrator
Runonce.exe /AlternateShellStartup
Detection
- Sigma: https://github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/registry/registry_event/registry_event_runonce_persistence.yml
- Sigma: https://github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_runonce_execution.yml
- Elastic: https://github.com/elastic/detection-rules/blob/2926e98c5d998706ef7e248a63fb0367c841f685/rules/windows/persistence_run_key_and_startup_broad.toml
- IOC: Registy key add - HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\YOURKEY