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Date: Tue, 19 Jan 2010 19:59:55 -0600
From: Greg White <>
To: <>
Subject: john 1.4.2 with jumbo patch 1 - lm hash problem


I just downloaded and compiled john 1.4.2 and jumbo patch 1.  I am running john against my test hash.txt and should take about 5 seconds to complete.  john has been going at my hashes for 30 minutes so far.  Something is very wrong.  I am testing the lm hash.  My PC is a P3 so I compiled john with make linux-x86-mmx.

# ./john /root/hash.txt
Loaded 6 password hashes with no different salts (LM DES [64/64 BS MMX])
BB               (b)
A                  (a)
TESTTES    (Administrator:1)
CDC             (c)
DEDE          (d)

# cat /root/hash.txt

The administrator LM password should be TESTTEST.  The NTLM password is TestTest.  The NTLM crack works as it should.

Also I used to use john -f:nt hash.txt to tell john to use the NTLM algorithm.  In 1.4.2 I have to use john --format:nt hash.txt.  Is this change on purpose?


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