I have this multiple-part zip files as a list of {File.zip.001, File.zip.002, ..., File.zip.013} that happen to be protected by password.
When I try to unzip them using the Gnome GUI, I see click on the first file and can see everything inside of the archive. When it comes to extracting one or more of the contained files, the GUI asks me for a password which I don't have.
I tried to run zip2john on the first file of the archive, and an error appeared:
Did not find End Of Central Directory
I understand that this is because the archive is split, so I tried to merge it, first using cat:
cat File.zip.* > reassembled-zip.zip
Which results in a single .zip file, that still outputs the same error with zip2john.
Then using zip -FF:
Fix archive (-FF) - salvage what can
zip warning: Missing end (EOCDR) signature - either this archive
is not readable or the end is damaged
Is this a single-disk archive? (y/n): n
Scanning for entries...
zip warning: unexpected signature 50 4b 08 0e on disk 0 at 28163216
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 05 0a on disk 0 at 36958289
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 06 05 on disk 0 at 38360085
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 05 0b on disk 1 at 4113854
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 05 07 on disk 1 at 37794272
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0d 0c on disk 2 at 13988149
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 08 0b on disk 2 at 32540580
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 08 0f on disk 3 at 22252597
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 07 03 on disk 3 at 43159328
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 02 03 on disk 3 at 46197775
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0e 09 on disk 3 at 46912538
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0d 0e on disk 4 at 18365613
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 01 0d on disk 4 at 30660201
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 03 06 on disk 4 at 51561479
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 06 09 on disk 5 at 21609562
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0d 0f on disk 5 at 33684577
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0d 0f on disk 6 at 26918306
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 05 05 on disk 6 at 35119054
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0a 0d on disk 6 at 40757891
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 02 05 on disk 6 at 50151081
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0d 05 on disk 7 at 41068997
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 05 00 on disk 8 at 18797631
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0b 0e on disk 8 at 32933431
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0c 01 on disk 9 at 5171745
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 01 0b on disk 9 at 25825684
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 00 0e on disk 9 at 37006392
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0e 01 on disk 9 at 37687530
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0b 02 on disk 9 at 46914268
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 07 03 on disk 10 at 38971848
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0a 02 on disk 11 at 26959546
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 02 0e on disk 11 at 37013657
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 01 0f on disk 11 at 52166748
zip warning: skipping this signature...
zip warning: unexpected signature 50 4b 0c 0d on disk 12 at 9048933
zip warning: skipping this signature...
Could not find:
Study.zip.z14
Hit c (change path to where this split file is)
s (skip this split)
q (abort archive - quit)
e (end this archive - no more splits)
z (look for .zip split - the last split)
or ENTER (try reading this split again): e
zip warning: user ended reading - closing archive
zip warning: zip file empty
for which I had to rename the files in File.zip.z01 instead of File.zip.001 in order for it to work, and whose output was an empty zip file.
I think that the zip files are not broken, because the Gnome GUI tool has no trouble reading into the archive. But how can I bypass the password of the archive if john cannot process a multipart archive ?
