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...get the NT Domain and UserName of a Process?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (22):  
     


uses
  
TlHelp32;

type
  
PTOKEN_USER = ^TOKEN_USER;
  _TOKEN_USER = record
    
User: TSidAndAttributes;
  end;
  TOKEN_USER = _TOKEN_USER;

function GetUserAndDomainFromPID(ProcessId: DWORD;
  var User, Domain: string): Boolean;
var
  
hToken: THandle;
  cbBuf: Cardinal;
  ptiUser: PTOKEN_USER;
  snu: SID_NAME_USE;
  ProcessHandle: THandle;
  UserSize, DomainSize: DWORD;
  bSuccess: Boolean;
begin
  
Result := False;
  ProcessHandle := OpenProcess(PROCESS_QUERY_INFORMATION, False, ProcessId);
  if ProcessHandle <> 0 then
  begin
  
//  EnableProcessPrivilege(ProcessHandle, 'SeSecurityPrivilege', True);
    
if OpenProcessToken(ProcessHandle, TOKEN_QUERY, hToken) then
    begin
      
bSuccess := GetTokenInformation(hToken, TokenUser, nil, 0, cbBuf);
      ptiUser  := nil;
      while (not bSuccess) and (GetLastError = ERROR_INSUFFICIENT_BUFFER) do
      begin
        
ReallocMem(ptiUser, cbBuf);
        bSuccess := GetTokenInformation(hToken, TokenUser, ptiUser, cbBuf, cbBuf);
      end;
      CloseHandle(hToken);

      if not bSuccess then
      begin
        
Exit;
      end;

      UserSize := 0;
      DomainSize := 0;
      LookupAccountSid(nil, ptiUser.User.Sid, nil, UserSize, nil, DomainSize, snu);
      if (UserSize <> 0) and (DomainSize <> 0) then
      begin
        
SetLength(User, UserSize);
        SetLength(Domain, DomainSize);
        if LookupAccountSid(nil, ptiUser.User.Sid, PChar(User), UserSize,
          PChar(Domain), DomainSize, snu) then
        begin
          
Result := True;
          User := StrPas(PChar(User));
          Domain := StrPas(PChar(Domain));
        end;
      end;

      if bSuccess then
      begin
        
FreeMem(ptiUser);
      end;
    end;
    CloseHandle(ProcessHandle);
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  
hProcSnap: THandle;
  pe32: TProcessEntry32;
  Domain, User: string;
  s: string;
begin

  
hProcSnap := CreateToolHelp32SnapShot(TH32CS_SNAPALL, 0);
  if hProcSnap = INVALID_HANDLE_VALUE then Exit;

  pe32.dwSize := SizeOf(ProcessEntry32);

  if Process32First(hProcSnap, pe32) = True then
    while 
Process32Next(hProcSnap, pe32) = True do
    begin

      if 
GetUserAndDomainFromPID(pe32.th32ProcessID, User, Domain) then
      begin
        
s := Format('%s User: %s ; Domain: %s',[StrPas(pe32.szExeFile), User, Domain]);
        Listbox1.Items.Add(s);
      end else
        
Listbox1.Items.Add(StrPas(pe32.szExeFile));
    end;
  CloseHandle(hProcSnap);
end;

 

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