.. /Runonce.exe
Star

Executes a Run Once Task that has been configured in the registry

Paths:

C:\Windows\System32\runonce.exe
C:\Windows\SysWOW64\runonce.exe

Resources:

Acknowledgements:

Pierre-Alexandre Braeken (@pabraeken)

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

Execute

Executes a Run Once Task that has been configured in the registry
```
Runonce.exe /AlternateShellStartup
```
Use case
Persistence, bypassing defensive counter measures

Privileges required
Administrator

Operating systems
Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11

ATT&CK® technique
T1218