CODEWITHSUNDEEP
zipunzipforgot-passwordrecovercracking
Montecristo
Montecristo

Reputation: 103

Recover crack unzip Zip 2.0 (Legacy) file with lost password on Linux

I have an old zip file with a lost password.

zipinfo -z tells me its version Zip 2.0 which uses PKWARE encryption. Good news as that's apparently weak.

Bad news is nothing I've searched & founds tells me if its possible to crack without using brute force.

PKCrack looked like an option but it requires an unencrypted version of one of the files which I don't have.

I tried fcrackzip with a dictionary but it seems I don't remember anything about the password.

Does anyone know a good method to recover or unzip the files or the password or crack the zip without using brute force?

I believe it was encrypted on Windows - probably XP. I'm now using Ubuntu 18.04 LTS.

Here's the zipinfo -v output:

offset of local header from start of archive:   10089220 (000000000099F304h) bytes
file system or operating system of origin:      NTFS
version of encoding software:                   2.0
minimum file system compatibility required:     MS-DOS, OS/2 or NT FAT
minimum software version required to extract:   2.0
compression method:                             deflated
compression sub-type (deflation):               normal
file security status:                           encrypted
extended local header:                          no
file last modified on (DOS date/time):          2004 Feb 19 14:13:00
32-bit CRC value (hex):                         498a9daf
compressed size:                                39271 bytes
uncompressed size:                              39855 bytes
length of filename:                             16 characters
length of extra field:                          0 bytes
length of file comment:                         0 characters
disk number on which file begins:               disk 1
apparent file type:                             binary
non-MSDOS external file attributes:             000000 hex
MS-DOS file attributes (20 hex):                arc

Thank you for any help - these files are important to me

Upvotes: 1

Views: 3195

Answers (1)

w4dd325
w4dd325

Reputation: 617

Try fcrackzip using the RockYou.txt password list.

fcrackzip -v -u -D -p PATH/rockyou.txt NAME_OF_ZIP.zip
  • -v: for verbose mode.
  • -u: for weed out wrong passwords.
  • -D: for using a dictionary.
  • -p: for using a string as a password.

https://github.com/brannondorsey/naive-hashcat/releases/download/data/rockyou.txt

Upvotes: 1

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