Trying to add new file type (*.lzh)

Using PhotoRec to recover lost data
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dilberteatpie
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Joined: 06 Apr 2013, 09:59

Trying to add new file type (*.lzh)

#1 Post by dilberteatpie » 06 Apr 2013, 12:20

Hello
I'm trying to use photorec to try to recover some .lzh files that I deleted about over a year ago. I followed the guide: http://www.cgsecurity.org/wiki/Develope ... o_PhotoRec I'm not too sure about if I follow the guide completely; In what part do I add the signature at? The .lzh files I want to recover contain .psd files, so I made a few test to see if there's any matching strings - this is what I see: 2e 70 73 64.
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lzh Samples.zip
Samples of .lzh files containing .psd files
(12.96 KiB) Downloaded 105 times

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dilberteatpie
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Joined: 06 Apr 2013, 09:59

Re: Trying to add new file type (*.lzh)

#2 Post by dilberteatpie » 18 Apr 2013, 00:43

Bump. Can I get some help? I really have no clue what to do.

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cgrenier
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Re: Trying to add new file type (*.lzh)

#3 Post by cgrenier » 21 Apr 2013, 10:03

You have posted a zip archive with 3 RAR files with a .lzh extension. There are not lzh archives.
BTW PhotoRec already recovers rar archives.

dilberteatpie
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Joined: 06 Apr 2013, 09:59

Re: Trying to add new file type (*.lzh)

#4 Post by dilberteatpie » 21 Apr 2013, 19:19

The .lzh archive in general don't have a constant specific. However, I do remember seeing the names of the files inside .lzh when checked thru hex editor - it doesn't encrypt the file names. In this certain situation, the .lzh files I'm looking to recover contains "*.psd" files, so .psd reads 2e 70 73 64 when I it thru check hex editor. That's the only way I can think of recovering my specific .lzh file. I provided new samples; this time it's not archived as .rar, but you can see it doesn't encrypt the file names inside .lzh.
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sample.zip
(10.94 KiB) Downloaded 103 times

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cgrenier
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Re: Trying to add new file type (*.lzh)

#5 Post by cgrenier » 28 Apr 2013, 19:38

I have posted a new 6.14-WIP version. Can you try it ?

dilberteatpie
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Re: Trying to add new file type (*.lzh)

#6 Post by dilberteatpie » 11 May 2013, 06:16

Well, I only managed to recover recent .lzh archive files, but not older files. I still can't manage to recover anything that contains .psd files.

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