To Undo:
reg delete "hkcu\software\classes\clsid\86ca1aa0-34aa-4e8b-a509-50c905bae2a2" /f
The syntax for reg add is as follows:
reg add <KeyName> [/v ValueName | /ve] [/t DataType] [/d Data] [/f]
| Parameter | Meaning in your example |
|-----------|--------------------------|
| reg add | Command to add or modify a registry key or value. |
| HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32 | Full path to the registry key. HKCU stands for HKEY_CURRENT_USER. |
| /ve | Add or modify the default value (empty name value) of the key. |
| /d | The data to assign to that default value. Typically, this is a file path to a DLL or executable. |
| "..." | The data (though in your sample you have ve d f – which looks incomplete; likely the /d argument is missing a proper DLL path). | | Parameter | Meaning in your example |
Missing pieces: The command fragment ve d f appears truncated. A full working command would be: The /f flag forces the update without prompting
reg add "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32" /ve /d "C:\Path\To\malicious.dll" /f
The /f flag forces the update without prompting for confirmation. I will explain:
reg add "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32" /v ve /d "some data" /f
However, the string you provided:
reg add hkcu software classes clsid 86ca1aa034aa4e8ba50950c905bae2a2 inprocserver32 ve d f
contains syntax errors and an unclear GUID-like string. Below, I will explain: