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Western Digital Security – a short story of a known password that doesn’t work

January 15, 2016 in Forensic Analysis, Silly

This is a short note to anyone who set up their password on their Western Digital drive using the ‘brilliant’ piece of software called WD Security and can’t unlock it, despite knowing the password.

If you know the password, but despite it being correct you can’t unlock the drive, it is possible you are using a very long password, longer than 25 characters. Turns out that when you set up a password the stupid software accepts password of any length, without limits. So, you enter your 30 characters password, set the password, unplug the drive, all happy. Then you plug it in again, provide your 30 character long password and to your horror, it doesn’t work. Try to input first 25 characters and it should hopefully work.

Other vulnerabilities of WD drives here.

 

Cryptarithms (sort of DFIR-related ;))

August 15, 2015 in Puzzles, Silly

Last year I was looking at my very old programs and I came across a cryptarithm solver that I wrote in khem… Pascal. I wrote it to solve one such riddle published in a crossword magazine back in a day (as a side note: when I found it I was actually looking for something completely different in a first place /as it is usually the case/).

As per wikipedia: cryptarithm or word addition, is a type of mathematical game consisting of a mathematical equation among unknown numbers, whose digits are represented by letters. The goal is to identify the value of each letter.

Since I came across it I started wondering if there was a generic solution for this type of puzzle and after googling around I found out that it is possible – some people created dedicated web sites that handle all the solving work for you.

Using these available tools I created these 2 below so if you are bored, you can try to solve them 😉 [as you can see it is DFIR-related 😉 ]

  • RCE+DFIR=ELEET
         RCE
      + DFIR
       ----- 
     = ELEET
  • MFT+FILE+FILE+FILE+FILE=NTFS
          MFT
       + FILE
       + FILE
       + FILE
       + FILE
       ------
       = NTFS

And if you struggle you can always cheat and use this solver by Naoyuki Tamura (that’s how I created these anyway :) )