Runonce.exe — LOLBAS

Execute

ExecutionWindows

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

Use Persistence, bypassing defensive counter measures

Runonce.exe /AlternateShellStartup

Evidence: Upstream reference
Environment: Local host
Context: admin
Native: Execute
MITRE: T1218
Detection: Sigma: github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/registry/registry_event/registry_event_runonce_persistence.yml
Sigma: github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_runonce_execution.yml
Elastic: 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
Refs: twitter.com/pabraeken/status/990717080805789697
cmatskas.com/configure-a-runonce-task-on-windows/
lolbas-project.github.io/lolbas/Binaries/Runonce/