Ricostruzione forense di NTFS con metadati parzialmente danneggiati

Andrea Lazzarotto — andrealazzarotto.com

Metadati

— Brian Carrier

“There is unfortunately very little published in terms of the procedures used to perform recovery when metadata is missing”

NTFS

Struttura variabileMolto diffuso

Elementi principali

Index recordFile recordBoot sector

Ricostruzione

29 30 31 100 101 102 35 104

Root RootLost

Risultato

File System Structure

5 Root

0 $MFT

1 $MFTMirr

2 $LogFile

3 $Volume

4 $AttrDef

6 $Bitmap

7 $Boot

8 $BadClus

8:$Bad $BadClus:$Bad

9:$SDS $Secure:$SDS

9 $Secure

10 $UpCase

11 $Extend

25 $ObjId

24 $Quota

26 $Reparse

66 bbb.txt64 interesting

65 aaa.txt

−1 LostFiles

67 Dir_67

68 another

Geometria

SPC(sectors per cluster)

CB(cluster base) File system (in cluster)

Disco (in settori)

Pattern

A: INDX al cluster 0

B: INDX al cluster 1

C: INDX al cluster 3

Matching

SPC = 1

Disco

Matching

SPC = 2

Disco

CB

Testdisk — No partition found

Autopsy — Failed to add data source

RecuperaBit — 517 oggetti (239,1 MB)

In futuro...

FAT, EXT,HFS+, ...

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