Launcher process
provlaunch.exe LOLBin
Executes command defined in the Registry. Requires 3 levels of the key structure containing some keywords. Such keys may be created with two reg.exe commands, e.g. "reg.exe add HKLM\SOFTWARE\Microsoft\Provisioning\Commands\LOLBin\dummy1 /v altitude /t REG_DWORD /d 0" and "reg add HKLM\SOFTWARE\Microsoft\Provisioning\Commands\LOLBin\dummy1\dummy2 /v Commandline /d calc.exe". Registry keys are deleted after successful execution.
Executes arbitrary command
c:\windows\system32\provlaunch.exe
Sigma: https://github.com/SigmaHQ/sigma/blob/9cb124f841c4358ca859e8474d6e7bb5268284a2/rules/windows/process_creation/proc_creation_win_provlaunch_potential_abuse.yml, Sigma: https://github.com/SigmaHQ/sigma/blob/9cb124f841c4358ca859e8474d6e7bb5268284a2/rules/windows/process_creation/proc_creation_win_provlaunch_susp_child_process.yml, Sigma: https://github.com/SigmaHQ/sigma/blob/9cb124f841c4358ca859e8474d6e7bb5268284a2/rules/windows/process_creation/proc_creation_win_registry_provlaunch_provisioning_command.yml, Sigma: https://github.com/SigmaHQ/sigma/blob/9cb124f841c4358ca859e8474d6e7bb5268284a2/rules/windows/registry/registry_set/registry_set_provisioning_command_abuse.yml, IOC: c:\windows\system32\provlaunch.exe executions, IOC: Creation/existence of HKLM\SOFTWARE\Microsoft\Provisioning\Commands subkeys
Grzegorz Tworek (@0gtweet)