Date: Wed, 3 Feb 2010 14:04:25 +0100 From: SL <auditor@...chat.de> To: john-users@...ts.openwall.com Subject: Pre-Mangling (Wordlist cleanup) I would like to use ./john --rules=Pre-Mangle --stdout | ./ unique to clean up arbitrary (large) "dirty" wordlists. In other words: I have target-specific generated wordlists (of about 2GB size), which still contain a lot of "unusable junk" like raw MD5 hashes, punctuation, Base64 fragments, QP-encoded fragments, falsely decoded UTF-8 etc. My intention is to put together a number of word mangling rules that help to reduce this chaos and only let through "reasonable" candidates for future processing with ./john --rules and ./john --rules=Single. (My currently running "--rules=Single" session on that 2GB list has got an ETA of mid-November 2010 (salted raw MD5 hashes, JimF's patch).) Does such a collection of rules already exist? I couldn't find one, and I must admit that the complexity of http://www.openwall.com/john/doc/RULES.shtml is a bit too much for me to start from scratch. What it should accomplish: * obviously no no-op (:) * include "dictionary-like" words up to à certain length (haven't seen any password longer than 18 chars in my samples, so lenght 22 should probably be sufficient) * shorter alphanumeric "words" might be included as-is, maybe up to 8 or 10 chars * punctuation should probably be purged (or truncated?) * words with false transcodings (lots of /(.[ÂÃ])+/) should get rejected Could anybody please point me to a reasonable start? I shall follow-up with a patch to john.conf, if this idea proves succesful.
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