MultiDrive – free backup, clone & wipe disk utility from Atola Technology

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 10 posts ] 
Author Message
 Post subject: Data recovery Western Digital
PostPosted: March 3rd, 2010, 6:04 
Offline

Joined: March 3rd, 2010, 5:41
Posts: 3
Location: Blahblah
Hi. I'm in the final stages of trying to recover some photos for a friend from their WD drive. I'm not after any ninja ripping apart of the drive, purely looking for a software solution.

I was given the drive with a "I stopped working, it might have been a virus..." :roll:

I tried with various partition recovery and unerasers (commercial and free) with no joy. I've been playing for a couple of weeks and this is a last ditch plea before I simply re-install and accept the data as lost. Below are a sequence of shots showing the hex view of the drive. As you can see there is the note about this not being a boot drive, lots of nothing, then the rest of the drive is filled with "FF". I have run the Full Western Digital scan in DOS and the drive is flawless... any idea what has happened (it appears that something has physically overwritten the drive with "ones" from about sector 2015 onwards to the end of the drive. Is there anyway to recover this 'at home' (not worth the lab costs - it's photos :( )


Front of the drive:
Image
Image

Zeros:
Image

And for completeness - Ones?:
Image
Image

Am I doomed?


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 2:21 
Offline

Joined: August 24th, 2009, 6:01
Posts: 95
Location: U.A.E Dubai
Try with R-Studio software.


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 3:59 
Offline

Joined: October 11th, 2009, 8:52
Posts: 22
Location: Europe
Try PhotoRec

_________________
Reševanje podatkov - Tannaris


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 5:50 
Offline

Joined: March 3rd, 2010, 5:41
Posts: 3
Location: Blahblah
Thanks for the quick replies, I'm not sure PhotoRec will have any effect as it recovers files that are still present on the drive, having had their metadata removed (or if the FAT is corrupted for example...) - from their site:

Quote:
For example, PhotoRec identifies a JPEG file when a block begins with:

* 0xff,0xd8,0xff,0xe0
* 0xff,0xd8,0xff,0xe1
* or 0xff,0xd8,0xff,0xfe


I'll give it a go - but as you can see in my screen-shots - there is nothing on the drive apart from "FF" and "00" - so unless that is a read error (I've tried several different raw drive readers in DOS and Windows and they all show the same pattern) I'm not sure PhotoRec will find anything :(

R-Studio looks excellent, and I will definitely be keeping for future use (thanks) but again I suspect it will have no effect - I used the HEX/Text viewer on the WD drive and it also shows most of the drive as having been written to binary "1" - it does indeed appear that a virus has overwritten the entire drive - haven't seen that since the early DOS viruses :shock:

I'm running a scan but not holding my breath.

I'm pretty sure the data is unrecoverable - I don't suppose there is a software solution to 'un-write' bits the way they can in a lab?


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 6:06 
Offline

Joined: October 3rd, 2005, 0:40
Posts: 4753
Location: Hungary
I pretty much convinced that this one is not recoverable. And if the data was overwritten, no lab will be able to recover it either.

pepe

_________________
Adatmentés - Data recovery


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 10:22 
Offline

Joined: August 12th, 2008, 13:11
Posts: 3235
Location: USA
cavemanhg wrote:
'un-write' bits the way they can in a lab?

This is not accurate... if the drive is full of FF then there is nothing on your drive anymore except FF

_________________
You don't have to backup all of your files, just the ones you want to keep.


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 12:18 
Offline

Joined: October 23rd, 2006, 8:56
Posts: 1336
Unfortunately it's bye, bye data :cry:


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 18:26 
Offline

Joined: March 3rd, 2010, 5:41
Posts: 3
Location: Blahblah
drc wrote:
cavemanhg wrote:
'un-write' bits the way they can in a lab?

This is not accurate... if the drive is full of FF then there is nothing on your drive anymore except FF


Forensic recovery allows them to analyse the drive and effectively 'unwrite' the recent change by examining the charge on the platter - minute variations in the alignment of the bits can indicate the previous state of that bit... but we're not looking to spend quite that much... :wink:


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 19:17 
Offline

Joined: November 9th, 2006, 15:15
Posts: 2984
cavemanhg wrote:
drc wrote:
cavemanhg wrote:
'un-write' bits the way they can in a lab?

This is not accurate... if the drive is full of FF then there is nothing on your drive anymore except FF


Forensic recovery allows them to analyse the drive and effectively 'unwrite' the recent change by examining the charge on the platter - minute variations in the alignment of the bits can indicate the previous state of that bit... but we're not looking to spend quite that much... :wink:


Who is 'them'? Show me one company that is able to do this...


Top
 Profile  
 
 Post subject: Re: Data recovery Western Digital
PostPosted: March 4th, 2010, 19:34 
Offline

Joined: August 12th, 2008, 13:11
Posts: 3235
Location: USA
cavemanhg wrote:
Forensic recovery allows them to analyse the drive and effectively 'unwrite' the recent change by examining the charge on the platter

I understand the concept, but nobody actually does this.

_________________
You don't have to backup all of your files, just the ones you want to keep.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: Google [Bot] and 35 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group