Question

Getting a filename, without a FAT12 directory entry record

Asked by: satory

I am currently doing a forensic investigation on a floppy disc, its part of a college assignment.  

I've done pretty much all of it so far, where by I've managed to get a number of files of the disc using WinHex.  Though there is a problem, well actually 2 problems.  Firstly WinHex doesnt recover file names(I've got version 12, not sure but it may be in a later version), that has to be done manually and then secondly there aren't enough directory entry records of the amount of files I have found.   on a side note, am I right in assuming that in a File Allocation Table filesystem when you delete a file, the directory entry record is deleted also?  


This has lead me to my issue, I'd like to be able to hand up the files, with the correct filenames attached, but I only have the data of the file that I can see which also happens to be encrypted as the documents are password protected.  I have managed to work out the passwords for the files I need names of, but for the ones I don't have, where and how would I go about searching for them?

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Asked On
2009-11-03 at 17:34:51ID24869521
Topics

Digital Forensics

,

Storage Technology

Participating Experts
1
Points
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Comments
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Answers

 

by: TheNauticanPosted on 2009-11-03 at 17:50:15ID: 25735727

i found a similar exercise here: http://old.honeynet.org/scans/scan24/sol/dennis/Scan%2024.htm
it may help you. I personally use Testdisk for all my data recovery efforts, though none have been as bad as this setup.

 

by: satoryPosted on 2009-11-04 at 02:17:32ID: 25737873

Hummm, thanks..

Not quiet what I was looking for, though it has given me a few ideas to look into.

 

by: TheNauticanPosted on 2009-11-04 at 03:04:47ID: 25738095

ya, it seems, in my limited research, that file names aren't recoverable. You have to hexedit the files themselves to try and get clues. I'd be very interested to know how you progress with this. I'll keep reading as well and maybe come up with something more helpful.

 

by: satoryPosted on 2009-11-04 at 03:14:08ID: 25738142

I have found something about that might be useful.
http://www.msxnet.org/word2rtf/formats/ffh-dosword5

Particularly at section 16.3.7.  When I head into college in an hour I'm going to see if is what im looking for, if it is then I will remove the passwords from the files and hopefully get the files names from a hex editor.

 

by: satoryPosted on 2009-11-04 at 10:00:04ID: 25741989

Well after doing some testing and viewing word files in a hex editor it does seem that the name of the there from the link I posted above, so now I should be able to get the file names of the files that are encrypted.  

Thanks for the help.

20120131-EE-VQP-002

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