john-users - Strange raw-md5 question

Openwall GNU/*/Linux 3.0 - a small security-enhanced Linux distro for servers

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Date: Fri, 9 Mar 2012 09:10:05 +0100
From: pierzi <pierzi@...il.com>
To: john-users@...ts.openwall.com
Subject: Strange raw-md5 question

Hello

I'm trying to find out how to crack passwords like those:

test:ba3fce11d01be92998a127e0666621a4:c0 --> test:c0password
It's a raw-md5+2bytes salt

I've been trying to edit dynamic_1008 in dynamic.conf:
Saltlen=2

and change input data to:
test:ba3fce11d01be92998a127e0666621a4$c0
and run it with:
john-omp -format=dynamic -subformat=dynamic_1008 crypt.txt
but John doesn't accept this format...

I'm using 1.7.9 jumbo5 win32 compilation

Thanks in advance for any suggestions
Best regards
Bartosz