LC4 (L0phtCrack) error "Couldn't open SAM\Domains\Account\Users in SAM file. Possibly improper format."

[<flexicon33 () yahoo com>]

Hi,
I'm trying to import some SAM files into LC4, and for some reason LC4 
doesn't like the format. I get the above error for any of 5 SAM files I'm 
trying.

For a pen test, I got these sam files by senging a 'tptp put' command to 
the SQL server (had no 'sa' password) so the SAM files were sent to my tftp 
server. There were 5 of these servers, so I got 5 SAM files to try. LC4 
doesn't like any of them. 

However, LC4 works for other SAM files... I tested with my own SAM file 
(w2k) and also another I downloaded from a machine via an http exploit... 
LC4 had no problems opening those 2 and working on them.

Why does LC4 complain about these other SAM files? Does some other sam 
format exist or did they get mangled somehow?
Thanks...
Flexicon33, CISSP

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