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Seagte 2TB with scrambled data

August 22nd, 2013, 5:28

Hi Folks,

I got a 2TB seagate drive with a logical problem.
Customer says that it was in a windows PC as internal drive and someone formatted it and now there is nothing there.
I looked into it and the drive is physically good and currently has a NTFS empty partition.
Opening the drive in WINHEX i see data all over the drive but when i do i deep scan with R-STUDIO, Stellar etc. it can't find any files shows blank even in RAW Recovery.
That's quite weird and i suspect Encryption but user is not aware of any.
Is there a way to identify an encryption type by some signature?

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 7:06

Hi,

It could be encryption or someone messed with it before you.
Did you scan the whole drive to find raw data and nothing found?
What was the file system before?

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 7:23

Probably Windows 7 encryption (Bitlocker)

Was the PC set up for him by someone else? Maybe they enabled Bitlocker?

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 7:44

it was win 7 but he doesn't know if they sey bitlocker on, is there a way around that?

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 8:03

odedshankar wrote:Hi Folks,

I got a 2TB seagate drive with a logical problem.
Customer says that it was in a windows PC as internal drive and someone formatted it and now there is nothing there.
I looked into it and the drive is physically good and currently has a NTFS empty partition.
Opening the drive in WINHEX i see data all over the drive but when i do i deep scan with R-STUDIO, Stellar etc. it can't find any files shows blank even in RAW Recovery.
That's quite weird and i suspect Encryption but user is not aware of any.
Is there a way to identify an encryption type by some signature?



take screenshot by winhex of ur hdd (beginning) n [aste here

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 8:05

the drive was quick formatted and has new NTFS partition on it which is empty.
Which LBA's should i capture in the screenshots?

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 8:17

One that is not part of the new partition.

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 8:32

odedshankar wrote:the drive was quick formatted and has new NTFS partition on it which is empty.
Which LBA's should i capture in the screenshots?


sorry did not pay attention to the format issue

if r-studio did not find anything , try to see if you can get any RAW data (working files)

and let us know


forgot to mention, if drive was Encrypted by BitLocker, and been quick formatted, then no need for all of this
its all gone (based on my tests here)

good luck

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 18:20

If it's using 128-bit AES encryption, then there will be a repeating pattern of 16 bytes wherever there are blocks of encrypted zeros. If the volume was full formatted as an encrypted volume, then I would expect to see these repeating patterns near the end of the drive, before the backup NTFS boot sector.

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 18:22

i did a deep scan it with r-studio and few more software suite and all found nothing.
Same result with raw recovery attempt.
So i guess its all gone.

Re: Seagte 2TB with scrambled data

August 22nd, 2013, 20:41

Here is a screenshot.
Attachments
ScreenShot-Scrambled-data.jpg

Re: Seagte 2TB with scrambled data

August 23rd, 2013, 0:50

einstein9 wrote:
odedshankar wrote:the drive was quick formatted and has new NTFS partition on it which is empty.


forgot to mention, if drive was Encrypted by BitLocker, and been quick formatted, then no need for all of this
its all gone


Word !

Re: Seagte 2TB with scrambled data

August 23rd, 2013, 16:08

odedshankar wrote:Here is a screenshot.

This sector is in the data area. Instead I would go to the very last sector and work backwards. Look for sectors containing a repeating pattern of 16 bytes.
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