.. /Provlaunch.exe
Star

Execute

Launcher process

Paths:

c:\windows\system32\provlaunch.exe

Resources:

https://twitter.com/0gtweet/status/1674399582162153472

Acknowledgements:

Grzegorz Tworek (@0gtweet)

Detection:

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

Execute

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.

provlaunch.exe LOLBin

Usecase: Executes arbitrary command
Privileges required: Administrator
OS: Windows 10, Windows 11, Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022
MITRE ATT&CK®: T1218