Получение SID пользователя, под которым запущен процесс

unit Unit1;

 
interface
 
uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;
 
type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  end;
 
  PTokenUser = ^TTokenUser;
  TTokenUser = record
    User: array[0..0] of TSIDAndAttributes;
  end;
 
  procedure ConvertSidToStringSid(SID: PSID; var StringSid: LPSTR); stdcall;
    external advapi32 name 'ConvertSidToStringSidA';
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
 
function GetCurrentUserSID: String;
var
  TokenHandle: THandle;
  TokenInformationClass: TTokenInformationClass;
  TokenInformation: PTokenUser;
  ReturnLength: DWORD;
  StringSid: LPSTR;
begin
  Result := '';
  if OpenProcessToken(GetCurrentProcess, TOKEN_QUERY, TokenHandle) then
  try
    TokenInformationClass := TokenUser;
    GetTokenInformation(TokenHandle, TokenInformationClass, nil, 0, ReturnLength);
    if GetLastError = ERROR_INSUFFICIENT_BUFFER then
    begin
      TokenInformation := GetMemory(ReturnLength);
      if TokenInformation <> nil then
      try
        if GetTokenInformation(TokenHandle, TokenInformationClass,
          TokenInformation, ReturnLength, ReturnLength) then
        begin
          ConvertSidToStringSid(TokenInformation^.User[0].Sid, StringSid);
          Result := StringSid;
        end;
      finally
        FreeMemory(TokenInformation);
      end;
    end;
  finally
    CloseHandle(TokenHandle);
  end;
end;
 
 
procedure TForm1.Button1Click(Sender: TObject);
begin
  ShowMessage(GetCurrentUserSID);
end;
 
end.

Взято из https://forum.sources.ru

Автор: Rouse_