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Assarbad
(Gast)

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#1

Geschützte Dateien (SFC) auflisten

  Alt 21. Aug 2003, 13:45
Hier ein kleines Programm um alle SFC-geschützten Dateien aufzulisten

Hier die Downloads:
http://assarbad.net/stuff/!export/getsfcfiles.ace
http://assarbad.net/stuff/!export/getsfcfiles.rar
http://assarbad.net/stuff/!export/getsfcfiles.zip

Da es Klagen gab, man wisse nicht, was SFC/WFP ist ... hier die Informationen zum Anklicken Bei Google suchenSFC WFP Windows 2000

... und ein kurzer Abriß
Winlogon.exe, also der Prozeß, der für die Verwaltung von Benutzeranmeldungen verantwortlich ist und von SMSS.exe (dem Sessionmanager) gestartet wird, lädt eine DLL SFC.DLL aus %SystemRoot%\System32\. Diese DLL implementiert verschiedene Schutz- und Prüfmechanismen um die Integrität der wichtigsten Systemdateien zu gewährleisten. Jeder hat es sicher schon einmal erlebt, daß er eine DLL oder andere Systemdatei aus dem System32-Verzeichnis gelöscht hat, und danach aufgefordert wurde sie wiederherzustellen. Das passiert, wenn die entsprechende Datei nicht als Sicherheitskopie in %SystemRoot%\System32\DllCache\ vorliegt. So wird man dann aufgefordert die Installations-CD einzulegen. SFC steht übrigens für System File Ceck(er). WFP für Windows File Protection. Beim Start von Windows wird also beim Start der GUI entsprechend diverser Einstellungen in der Registry ein Integritätscheck vorgenommen. Deshalb sind Änderungen, die man in der Rettungskonsole gemacht hat manchmal plötzlich weg ...

Mein kleines Proggy listet nun alle geschützten Dateien auf und sollte auch auf XP funktionieren.

Delphi-Quellcode:
(******************************************************************************
******************************************************************************
***                                                                        ***
***  Sample code for use of undocumented GetSfcFiles API from sfcfiles.dll ***
***  Version [1.00]                              {Last mod 2003-08-21}  ***
***                                                                        ***
******************************************************************************
******************************************************************************

                                _\\|//_
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______________________________ooO_(_)_Ooo_____________________________________
******************************************************************************
******************************************************************************
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LEGAL STUFF:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Copyright (c) 1995-2003, -=Assarbad=- ["copyright holder(s)"]
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
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******************************************************************************)


program GetSfcFiles_Sample;
{$APPTYPE CONSOLE}
uses
  Windows;


type
  TSfcList = record
    wcsFileNameInDllCache: PWideChar; // Name of the file in DllCache
    wcsFilePath: PWideChar; // Path of the protected file
    wcsWhatEverInfFile: PWideChar; // Name of some INF file ... unknown meaning
  end;
  TSfcListArray = array[0..0] of TSfcList;
  PSfcListArray = ^TSfcListArray;

function SfcGetFiles(
  var lpNamelist: PSfcListArray;
  var lpNumEntries: DWORD
  ): DWORD; stdcall; external 'sfcfiles.dll';
(* Call and then iterate through the array with wide strings NumEntries times. *)

var
  namelist:PSfcListArray;
  i, num:DWORD;
begin
{ This crappy example simply dumps all SFC protected files to the console }
  if SfcGetFiles(namelist, num)=ERROR_SUCCESS then
    for i:=0 to num-1 do
      Writeln(String(namelist^[i].wcsFilePath));
end.
[edit=Daniel B]Titel korrigiert. Mfg, Daniel B[/edit]
[edit=CalganX]Titel geändert, Klassizifierung korrigiert, Cache erneuert. Mfg, CalganX[/edit]
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